C. Praharaj, Kiran Reddy, Harmisha Sojitra, Keval Hirapara, K. K. Pal
Sustainable low-cost farming in (groundnut based) cropping system offers a much-needed alternative to conventional input-intensive agriculture. Keeping this in view a field experiment was conducted during rainy (kharif) season of 2022–23 at ICAR-Directorate of Groundnut Research, Junagadh, Gujarat on groundnut (Arachis hypogaea L.) to evaluate the performance of low-input agriculture with ZBNF (Zero-budget natural farming) vis-avis others. Experiment was conducted in a split plot design having 3 different farming practices, viz. Natural farming (NF); Integrated crop management (ICM or conventional farming); and Organic farming (OF) practices in main plot using 2 cultivars ‘GJG-22’ (Virginia Bunch) and ‘TG 37A’ (Spanish Bunch) in large sub plot (~1/100th of a hectare), replicated 8-times. Further, these permanent plots of 3 farming practices were cultivated with wheat (Triticum aestivum L.) (two cultivars, viz. ‘GW 451’ and ‘Lok 1’) in rotation during winter (rabi) season of 2022–23 following a residual exhaustive fodder crop of pearl millet [Pennisetum glaucum (L.) R.Br.] grown during spring/summer 2021– 22 prior to the experimentation. The study revealed that pod yield to the tune of 1,316–1,630 kg/ha was realized with low cost NF (or ZBNF) practice (higher yields with Spanish Bunch) vis-a-vis 1,448–1,779 kg/ha in OF practice. On the contrary, higher pod yield of 1,679–1,965 kg/ha was realized with the ICM practice employing improved production technologies. The growth/developmental parameters/values including economics and total system productivity were also higher under ICM practice. Furthermore, higher values in respect of all the groundnut plant attributes including economics and nutrient (NPK) uptake, and its efficiency (NPK uptake/100-kg pod) were evident under ICM practice. Similar crop responses were conspicuous in case of the succeeding wheat crop. Thus, overall crop response to farming practices were in the order: ICM>OF>NF; and the ratio of N, P, and K uptake for realization of higher per unit productivity (across farming practices and varieties) was observed to be 6.8:1.0:2.2 for groundnut and 3.9:1.0:3.3 for wheat. Thus, ICM practice comprising of judicious use of chemical fertilizers, manure and pesticides use was advantageous for realizing higher yield and return in groundnut-wheat. Further efforts are made to realize higher productivity of ecofriendly farming practices (ZBNF and OF).
{"title":"Performance of low-input agriculture with ZBNF-A case study on groundnut (Arachis hypogaea L.)–wheat (Triticum aestivum L.) cropping system in Saurashtra region of Gujarat","authors":"C. Praharaj, Kiran Reddy, Harmisha Sojitra, Keval Hirapara, K. K. Pal","doi":"10.59797/ija.v69i1.5477","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5477","url":null,"abstract":"Sustainable low-cost farming in (groundnut based) cropping system offers a much-needed alternative to conventional input-intensive agriculture. Keeping this in view a field experiment was conducted during rainy (kharif) season of 2022–23 at ICAR-Directorate of Groundnut Research, Junagadh, Gujarat on groundnut (Arachis hypogaea L.) to evaluate the performance of low-input agriculture with ZBNF (Zero-budget natural farming) vis-avis others. Experiment was conducted in a split plot design having 3 different farming practices, viz. Natural farming (NF); Integrated crop management (ICM or conventional farming); and Organic farming (OF) practices in main plot using 2 cultivars ‘GJG-22’ (Virginia Bunch) and ‘TG 37A’ (Spanish Bunch) in large sub plot (~1/100th of a hectare), replicated 8-times. Further, these permanent plots of 3 farming practices were cultivated with wheat (Triticum aestivum L.) (two cultivars, viz. ‘GW 451’ and ‘Lok 1’) in rotation during winter (rabi) season of 2022–23 following a residual exhaustive fodder crop of pearl millet [Pennisetum glaucum (L.) R.Br.] grown during spring/summer 2021– 22 prior to the experimentation. The study revealed that pod yield to the tune of 1,316–1,630 kg/ha was realized with low cost NF (or ZBNF) practice (higher yields with Spanish Bunch) vis-a-vis 1,448–1,779 kg/ha in OF practice. On the contrary, higher pod yield of 1,679–1,965 kg/ha was realized with the ICM practice employing improved production technologies. The growth/developmental parameters/values including economics and total system productivity were also higher under ICM practice. Furthermore, higher values in respect of all the groundnut plant attributes including economics and nutrient (NPK) uptake, and its efficiency (NPK uptake/100-kg pod) were evident under ICM practice. Similar crop responses were conspicuous in case of the succeeding wheat crop. Thus, overall crop response to farming practices were in the order: ICM>OF>NF; and the ratio of N, P, and K uptake for realization of higher per unit productivity (across farming practices and varieties) was observed to be 6.8:1.0:2.2 for groundnut and 3.9:1.0:3.3 for wheat. Thus, ICM practice comprising of judicious use of chemical fertilizers, manure and pesticides use was advantageous for realizing higher yield and return in groundnut-wheat. Further efforts are made to realize higher productivity of ecofriendly farming practices (ZBNF and OF).","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"345 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. N. Meena, L. K. Meena, S. Yadav, C. Jadon, U. Dhakad, Mohan Lal, H. P. Verma, V. Gupta, P. Singh
A study was carried out during three successive winter (rabi) seasons (2018–19 to 2020–21) at the Agricultural Research Station in Ummedganj, Kota, Rajasthan to determine the productivity and economic viability of intercropping systems based on chickpea (Cicer arietinum L.) in the Hadoti region of Rajasthan. Nine various chickpeabased intercropping systems, viz. Sole chickpea; Sole linseed (Linum usitatissimum L.); Sole coriander (Coriandrum sativum L.); Sole wheat (Triticum aestivum L.); Sole mustard [Brassica juncea (L.) Czern.]; Chickpea + linseed (6:2); Chickpea + coriander (6:2); Chickpea + wheat (6:2); and Chickpea + mustard (6:2) were investigated in a randomized block design (RBD) with three replications. According to combined statistics, the chickpea + mustard intercropping system had the highest chickpea grain yield and equivalent yield (1,865 kg/ha and 2,574 kg/ ha, respectively) when compared to all other intercropping systems. Results of competitive indices revealed that compared to rest of the intercropping system, chickpea + mustard (6:2) recorded significantly higher LER (1.25), MAI (18,462) and SPI (2912 kg/ha), while the lowest land equivalent ratio (LER), monetary advantage index (MAI), system productivity index (SPI) and production efficiency (PE) were recorded in the chickpea + wheat intercropping system. The chickpea + mustard intercropping system yielded values of competition ratio (3.56), aggressivity (-0.05), system profitability index (2912), relative crowding coefficient (13.2), and area time equivalent ratio (1.24), that were sustainable and producible in comparison to other treatments. In terms of economics, compared to all other intercropping and solo crops, the chickpea + mustard intercropping system yielded the chickpea’s most significant net returns (`93,681/ha) and benefit cost (B:C) ratio (3.11). So, for south-eastern Rajasthan, the mustard and chickpea intercropping system is a productive and sustainable system.
{"title":"Chickpea (Cicer arietinum)-based intercropping systems in Rajasthan’s Hadoti region: Productivity and economic viability","authors":"S. N. Meena, L. K. Meena, S. Yadav, C. Jadon, U. Dhakad, Mohan Lal, H. P. Verma, V. Gupta, P. Singh","doi":"10.59797/ija.v69i1.5482","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5482","url":null,"abstract":"A study was carried out during three successive winter (rabi) seasons (2018–19 to 2020–21) at the Agricultural Research Station in Ummedganj, Kota, Rajasthan to determine the productivity and economic viability of intercropping systems based on chickpea (Cicer arietinum L.) in the Hadoti region of Rajasthan. Nine various chickpeabased intercropping systems, viz. Sole chickpea; Sole linseed (Linum usitatissimum L.); Sole coriander (Coriandrum sativum L.); Sole wheat (Triticum aestivum L.); Sole mustard [Brassica juncea (L.) Czern.]; Chickpea + linseed (6:2); Chickpea + coriander (6:2); Chickpea + wheat (6:2); and Chickpea + mustard (6:2) were investigated in a randomized block design (RBD) with three replications. According to combined statistics, the chickpea + mustard intercropping system had the highest chickpea grain yield and equivalent yield (1,865 kg/ha and 2,574 kg/ ha, respectively) when compared to all other intercropping systems. Results of competitive indices revealed that compared to rest of the intercropping system, chickpea + mustard (6:2) recorded significantly higher LER (1.25), MAI (18,462) and SPI (2912 kg/ha), while the lowest land equivalent ratio (LER), monetary advantage index (MAI), system productivity index (SPI) and production efficiency (PE) were recorded in the chickpea + wheat intercropping system. The chickpea + mustard intercropping system yielded values of competition ratio (3.56), aggressivity (-0.05), system profitability index (2912), relative crowding coefficient (13.2), and area time equivalent ratio (1.24), that were sustainable and producible in comparison to other treatments. In terms of economics, compared to all other intercropping and solo crops, the chickpea + mustard intercropping system yielded the chickpea’s most significant net returns (`93,681/ha) and benefit cost (B:C) ratio (3.11). So, for south-eastern Rajasthan, the mustard and chickpea intercropping system is a productive and sustainable system.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"35 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141011394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An experiment was conducted to study the “Effect of zinc and boron on grain quality of wheat (Triticum aestivum L.) during the winter (rabi) season of 2018–2019 and 2019–20 at the agronomy research farm of IFTM University, Lodhipur Rajput, Moradabad, Uttar Pradesh. Ten treatments, viz. T1 , Control (no fertilizer); T2 , zinc @ 5 kg/ha (SA); T3 , zinc @ 1 kg/ha (FA); T4 - zinc @ 1 + 1 kg/ha (2 FA); T5 , zinc @ 5 kg/ha (SA) + zinc @ 1 kg/ha (FA); T6 , boron @ 0.5 kg/ha (SA); T7 , boron @ 0.1 kg/ha (FA); T8 , boron @ 0.2 kg/ha (2 FA); T9 , boron @ 0.5 kg/ha (SA) and boron @ 0.1 kg/ha (FA) and T10-, zinc @ 5 kg/ha + boron @ 0.5 kg/ha (SA) were comprised in randomized block design (RBD) with the three replications. The results revealed that different levels and application methods of zinc and boron significantly improved the grain quality of wheat. Maximum Zn content (35.4 and 35.9 mg/ha) and Zn uptake (185.1 and 197.1 g/ha) in 2018–19 and 2019–20, respectively were recorded with Zn @ 5 kg/ha (SA) + zinc @ 1 kg/ha (FA). Moreover, maximum B content (58.5 and 59.5 mg/ha) and B uptake (361.9 and 376.4 g/ha) in 2018–19 2019–20, respectively were observed with B @ 0.5 kg/ha (SA) and B @ 0.1 kg/ha (FA). Maximum protein content in grain (12.6 and 12.7%) and protein yield (712.8 and 744.9 kg/ha) was recorded under Zn - 5 kg/ha (SA) + B 0.5 kg/ha (SA) in 2018–19 and 2019–20, respectively
{"title":"Effect of zinc and boron on grain quality of wheat (Triticum aestivum) in north-western plain zone of India","authors":"Satybhan Singh, Virendra Singh, Monu Kumar","doi":"10.59797/ija.v69i1.5480","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5480","url":null,"abstract":"An experiment was conducted to study the “Effect of zinc and boron on grain quality of wheat (Triticum aestivum L.) during the winter (rabi) season of 2018–2019 and 2019–20 at the agronomy research farm of IFTM University, Lodhipur Rajput, Moradabad, Uttar Pradesh. Ten treatments, viz. T1 , Control (no fertilizer); T2 , zinc @ 5 kg/ha (SA); T3 , zinc @ 1 kg/ha (FA); T4 - zinc @ 1 + 1 kg/ha (2 FA); T5 , zinc @ 5 kg/ha (SA) + zinc @ 1 kg/ha (FA); T6 , boron @ 0.5 kg/ha (SA); T7 , boron @ 0.1 kg/ha (FA); T8 , boron @ 0.2 kg/ha (2 FA); T9 , boron @ 0.5 kg/ha (SA) and boron @ 0.1 kg/ha (FA) and T10-, zinc @ 5 kg/ha + boron @ 0.5 kg/ha (SA) were comprised in randomized block design (RBD) with the three replications. The results revealed that different levels and application methods of zinc and boron significantly improved the grain quality of wheat. Maximum Zn content (35.4 and 35.9 mg/ha) and Zn uptake (185.1 and 197.1 g/ha) in 2018–19 and 2019–20, respectively were recorded with Zn @ 5 kg/ha (SA) + zinc @ 1 kg/ha (FA). Moreover, maximum B content (58.5 and 59.5 mg/ha) and B uptake (361.9 and 376.4 g/ha) in 2018–19 2019–20, respectively were observed with B @ 0.5 kg/ha (SA) and B @ 0.1 kg/ha (FA). Maximum protein content in grain (12.6 and 12.7%) and protein yield (712.8 and 744.9 kg/ha) was recorded under Zn - 5 kg/ha (SA) + B 0.5 kg/ha (SA) in 2018–19 and 2019–20, respectively","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"279 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rajan Shukla, Amit Bhatnagar, Anjali Rawat, Satyam Rawat, Sandeep Kumar, Govind Ballabh, M. Scholar
The experiment was conducted during 2021–22 at Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand to evaluate the impact of sequential and tank mix application of pre- and post-emergence herbicide on weed dynamics and maize productivity. The study was comprised of 9 treatments viz. Weedy (T1 ); Weed free (T2 ); Pre-emergence (PE) application of Atrazine -1 kg a.i./ha fb hand weeding (T3 ); PE application of Atrazine - 0.75 kg a.i./ha fb Post Emergence (Post E) application of Topramezone - 25.2 g a.i./ha (T4 ); PE application of Atrazine - 0.75 kg a.i./ha fb Post E application of Tembotrione - 120 g a.i./ha (T5 ); PE application of Atrazine - 1.0 kg a.i./ha fb Post E application of Topramezone - 25.2 g a.i./ha (T6 ); PE application of Atrazine - 1.0 kg a.i./ha fb Post E application of Tembotrione - 120 g a.i./ha (T7 ); Early Post E application of Topramezone - 25.2 g a.i./ha + Atrazine - 0.75 kg a.i./ha (T8 ) and Early Post E application of Tembotrione - 120 g a.i./ha + Atrazine - 0.75 kg a.i./ha (T9 ). Eleusine indica, Echinochloa colona, Digitaria sanguinalis and Eragrostis japonica were dominant among grassy weeds whereas broad leaf weeds included Cucumis melo, Phyllanthus niruri, Cleome viscosa and Commelina benghalensis. Cyperus rotundus was dominant among sedges. Topramezone - 25.2 g a.i./ha + Atrazine - 0.75 kg a.i./ha Early Post E resulted significantly lower total weed density and was similar to other herbicidal treatments. The highest grain yield (7.2 t/ha) was recorded in a weed-free crop that was similar to all herbicidetreated crops and significantly higher than the weedy crop. Tank mix application of atrazine - 0.75 kg a.i./ha with tembotrione 120 g a.i./ha or topramezone 25.2 g a.i./ha at 15 DAS can be suggested owing to higher grain yield and profits for farmers while lowering the dose and expenses involved in manual weeding and spraying atrazine separately.
该实验于 2021-22 年期间在北阿坎德邦潘特纳加尔的戈文德-巴拉巴-潘特农业与技术大学进行，旨在评估芽前和芽后除草剂的顺序施用和混合施用对杂草动态和玉米产量的影响。该研究包括 9 个处理，即杂草丛生（T1）；无杂草（T2）；芽前（PE）施用阿特拉津-1 千克活性成分/公顷，人工除草（T3）；芽前（PE）施用阿特拉津-0./ha (T5 ); PE 施用阿特拉津 - 1.0 kg a.i./ha fb E 后施用托吡甲禾灵 - 25.2 g a.i./ha (T6 ); PE 施用阿特拉津 - 1.0 kg a.i./ha fb E 后施用腾博硫磷 - 120 g a. i. /ha (T7 ); PE 施用阿特拉津 - 0.75 kg a.i./ha fb E 后施用腾博硫磷 - 120 g a. i. /ha (T8 ); PE 施用阿特拉津 - 0.75 kg a.i./ha fb E 后施用腾博硫磷 - 120 g a. i.唑-0.75千克活性成分/公顷(T8)和戊唑醇-120克活性成分/公顷+阿特拉津-0.75千克活性成分/公顷(T9)。在禾本科杂草中，以荸荠属（Eleusine indica）、苣荬菜属（Echinochloa colona）、苣荬菜属（Digitaria sanguinalis）和粳米属（Eragrostis japonica）为主，而阔叶杂草包括甜瓜属（Cucumis melo）、苋属（Phyllanthus niruri）、粘茎苋属（Cleome viscosa）和贲门属（Commelina benghalensis）。莎草中主要是香附子。Topramezone - 25.2 g a.i./ha + Atrazine - 0.75 kg a.i./ha的E早期除草处理显著降低了杂草总密度，与其他除草处理效果相似。无杂草作物的谷物产量最高（7.2 吨/公顷），与所有除草剂处理的作物产量相近，且明显高于杂草作物。建议在 15 DAS 时将阿特拉津（0.75 千克活性成分/公顷）与 tembotrione（120 克活性成分/公顷）或 topramezone（25.2 克活性成分/公顷）混合施用，以提高谷物产量和农民收益，同时降低人工除草和单独喷洒阿特拉津的剂量和费用。
{"title":"Growth and productivity of maize (Zea mays) as influenced by sequential and combined application of tank mix herbicides","authors":"Rajan Shukla, Amit Bhatnagar, Anjali Rawat, Satyam Rawat, Sandeep Kumar, Govind Ballabh, M. Scholar","doi":"10.59797/ija.v69i1.5487","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5487","url":null,"abstract":"The experiment was conducted during 2021–22 at Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand to evaluate the impact of sequential and tank mix application of pre- and post-emergence herbicide on weed dynamics and maize productivity. The study was comprised of 9 treatments viz. Weedy (T1 ); Weed free (T2 ); Pre-emergence (PE) application of Atrazine -1 kg a.i./ha fb hand weeding (T3 ); PE application of Atrazine - 0.75 kg a.i./ha fb Post Emergence (Post E) application of Topramezone - 25.2 g a.i./ha (T4 ); PE application of Atrazine - 0.75 kg a.i./ha fb Post E application of Tembotrione - 120 g a.i./ha (T5 ); PE application of Atrazine - 1.0 kg a.i./ha fb Post E application of Topramezone - 25.2 g a.i./ha (T6 ); PE application of Atrazine - 1.0 kg a.i./ha fb Post E application of Tembotrione - 120 g a.i./ha (T7 ); Early Post E application of Topramezone - 25.2 g a.i./ha + Atrazine - 0.75 kg a.i./ha (T8 ) and Early Post E application of Tembotrione - 120 g a.i./ha + Atrazine - 0.75 kg a.i./ha (T9 ). Eleusine indica, Echinochloa colona, Digitaria sanguinalis and Eragrostis japonica were dominant among grassy weeds whereas broad leaf weeds included Cucumis melo, Phyllanthus niruri, Cleome viscosa and Commelina benghalensis. Cyperus rotundus was dominant among sedges. Topramezone - 25.2 g a.i./ha + Atrazine - 0.75 kg a.i./ha Early Post E resulted significantly lower total weed density and was similar to other herbicidal treatments. The highest grain yield (7.2 t/ha) was recorded in a weed-free crop that was similar to all herbicidetreated crops and significantly higher than the weedy crop. Tank mix application of atrazine - 0.75 kg a.i./ha with tembotrione 120 g a.i./ha or topramezone 25.2 g a.i./ha at 15 DAS can be suggested owing to higher grain yield and profits for farmers while lowering the dose and expenses involved in manual weeding and spraying atrazine separately.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"344 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141011753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. SAI KISHORE, K BHANU REKHA, S.A. HUSSAIN, A. MADHAVI
A field experiment was conducted during rainy (kharif) season of 2019 at research farm of Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana to study the effect of sowing dates and nitrogen levels on growth, yield and nutrient uptake of browntop millet [Brachiaria ramosa (L.) Stapf]. The experiment was laid out in a randomized block design (RBD) on sandy loam soil with factorial concept consisting of 4 dates of sowing (June 15th, June 30th, July 15th and July 30th) and 4 nitrogen levels (0, 20, 40 and 60 kg/ha) with 3 replications. Results showed that leaf area (683, 1530 and 1412 cm2 /plant), dry-matter production (248, 540, 622 g/m2 ), number of panicles/m2 (6.52), panicle length (17.82 cm), grains/panicle (147.92), grain (2,003 kg/ha) and straw yield (3,930 kg/ha); and nutrient uptake (N, P and K) at tillering, flowering and harvest (grain and straw) were significantly higher with June 15th sowing. Among N levels, application of 60 kg N/ha recorded highest leaf area (735, 1,560 and 1,437 cm2/plant), dry-matter production (243, 523 and 619 g/m2 ), number of panicles/m2 (6.48), panicle length (19.08 cm), grains/panicle (152.42), grain (1,921 kg/ha) and straw yield (3,949 kg/ha), and nutrient uptake (N, P and K) at tillering, flowering and harvest (grain and straw) but was at par with 40 kg N/ha over 20 and 0 kg N/ha.
{"title":"Growth, yield and nutrient uptake of browntop millet (Brachiaria ramosa) under varying sowing dates and nitrogen levels","authors":"A. SAI KISHORE, K BHANU REKHA, S.A. HUSSAIN, A. MADHAVI","doi":"10.59797/ija.v69i1.5490","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5490","url":null,"abstract":"A field experiment was conducted during rainy (kharif) season of 2019 at research farm of Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana to study the effect of sowing dates and nitrogen levels on growth, yield and nutrient uptake of browntop millet [Brachiaria ramosa (L.) Stapf]. The experiment was laid out in a randomized block design (RBD) on sandy loam soil with factorial concept consisting of 4 dates of sowing (June 15th, June 30th, July 15th and July 30th) and 4 nitrogen levels (0, 20, 40 and 60 kg/ha) with 3 replications. Results showed that leaf area (683, 1530 and 1412 cm2 /plant), dry-matter production (248, 540, 622 g/m2 ), number of panicles/m2 (6.52), panicle length (17.82 cm), grains/panicle (147.92), grain (2,003 kg/ha) and straw yield (3,930 kg/ha); and nutrient uptake (N, P and K) at tillering, flowering and harvest (grain and straw) were significantly higher with June 15th sowing. Among N levels, application of 60 kg N/ha recorded highest leaf area (735, 1,560 and 1,437 cm2/plant), dry-matter production (243, 523 and 619 g/m2 ), number of panicles/m2 (6.48), panicle length (19.08 cm), grains/panicle (152.42), grain (1,921 kg/ha) and straw yield (3,949 kg/ha), and nutrient uptake (N, P and K) at tillering, flowering and harvest (grain and straw) but was at par with 40 kg N/ha over 20 and 0 kg N/ha.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"350 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. V. Thakare, B. Gangaiah, Pritam Bhutada, A. V. Dahiphale, N. M. Konde
A field study was carried out during 2017–19 at Sorghum Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra to assess the effect of liquid bio-fertilizers inoculation over existing powder form inoculants on kharif grain sorghum [Sorghum bicolor (L.) Moench]. The experiment comprised of 6 treatments, viz. no bio-fertilizer control i.e. with RDF alone (T1 ); RDF + Azo. (Azospirillum) + PSB @50 g each/kg seed (T2 ); RDF + Azo. + PSB @2 ml each/kg seed (T3 ); RDF + Azo. @2 ml and PSB @4 ml/kg seed (T4 ); RDF + Azo. @4 ml + PSB @2 ml/kg seed (T5 ); and RDF + Azo. + PSB @4 ml each/kg seed (T6) conducted in randomized block design (RBD) with 4 replications. Pooled data revealed that seed inoculation with Azo. + PSB @2 ml each/kg seed (T3 ) has improved the sorghum biological, grain yield and net returns 21.13, 19.83 and 17.92% over their powder form of inoculants i.e. T2 (14.71 t/ha, 3.56 t/ha and 73,116). These enhancements in biomass, grain yields and net income was owing to liquid bio-fertilizer seed treatment. Liquid-based inoculants were found to boost growth and yield parameters, which was ascribed to the concomitant increase in plant height and number of grains/panicle, respectively. Increase in quantity of liquid bio-fertilizers beyond 2 ml/kg seed proved not-rewarding from both productivity and profitability point of view. Sorghum seed inoculation with liquid bio-fertilizers @2 ml each/kg seed proved to be a potential substitute for existing powder form without any additional cost.
{"title":"Quantifying response of azospirillum and phosphate solubilizing bacteria liquid inoculants seed treatment on productivity and profitability of kharif grain sorghum (Sorghum bicolor)","authors":"G. V. Thakare, B. Gangaiah, Pritam Bhutada, A. V. Dahiphale, N. M. Konde","doi":"10.59797/ija.v69i1.5481","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5481","url":null,"abstract":"A field study was carried out during 2017–19 at Sorghum Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra to assess the effect of liquid bio-fertilizers inoculation over existing powder form inoculants on kharif grain sorghum [Sorghum bicolor (L.) Moench]. The experiment comprised of 6 treatments, viz. no bio-fertilizer control i.e. with RDF alone (T1 ); RDF + Azo. (Azospirillum) + PSB @50 g each/kg seed (T2 ); RDF + Azo. + PSB @2 ml each/kg seed (T3 ); RDF + Azo. @2 ml and PSB @4 ml/kg seed (T4 ); RDF + Azo. @4 ml + PSB @2 ml/kg seed (T5 ); and RDF + Azo. + PSB @4 ml each/kg seed (T6) conducted in randomized block design (RBD) with 4 replications. Pooled data revealed that seed inoculation with Azo. + PSB @2 ml each/kg seed (T3 ) has improved the sorghum biological, grain yield and net returns 21.13, 19.83 and 17.92% over their powder form of inoculants i.e. T2 (14.71 t/ha, 3.56 t/ha and 73,116). These enhancements in biomass, grain yields and net income was owing to liquid bio-fertilizer seed treatment. Liquid-based inoculants were found to boost growth and yield parameters, which was ascribed to the concomitant increase in plant height and number of grains/panicle, respectively. Increase in quantity of liquid bio-fertilizers beyond 2 ml/kg seed proved not-rewarding from both productivity and profitability point of view. Sorghum seed inoculation with liquid bio-fertilizers @2 ml each/kg seed proved to be a potential substitute for existing powder form without any additional cost.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"272 48‐50","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global warming is causing climate change (CC) characterized by increased frequency of heatwaves, droughts, erratic rains, hailstorms, cloudbursts, floods, landslides etc. The CC has already adversely affected ecosystems. In spite of efforts to mitigate greenhouse gas (GHG) emissions, which lead to warming, the global temperature during 2011–20 was 1.1°C above that during pre-industrial era. The projections are that warming will continue to increase and adverse effects will intensify particularly in developing countries like India. In India a number of studies have recorded wide spatial variability in rainfall, though, many reported a general overall negative trend since mid-20th century. Further, varying pattern of rainfall has been recorded in three agroclimatic regions of Punjab state, the granary of India. Unseasonal rains followed by spiked temperature during winter (rabi) season of 2021–22 reduced wheat (Triticum aestivum L.) yield in Punjab by 651 kg/ha and by 301 kg/ha in Haryana compared to 2020–21. Further, the grain was of lower quality. During rainy (kharif) season of 2022, Southern Rice Black-streaked Dwarf Virus (SRBSDV), appeared for the first time in Punjab and Haryana. Some farmers ploughed the affected fields. Adverse weather during rabi 2022–23 also, reduced the wheat yield (143–150 kg/ha) in these states. At the national level, erratic weather during rabi 2021–22 and kharif 2022 caused losses of about 3 mt of grain of each of wheat and rice (Oryza sativa L.). The projected increased adverse effects due to intensified CC include food insecurity. Thus, there is an emergent need to accelerate implementation of adaptation and mitigation strategies in agriculture. The adaptation options include cultivar improvement, conservation agriculture altering growing seasons, crop diversification and sustainable soil, and water resource management. In the process of adaptive management of crop production, adjusting sowing dates and breeding cultivars having varying duration in consonance with CC has been one of the central aspects. Shifting sowing dates to find appropriate crop cultivation season is a low-cost measure. However, cultivar development is time and resource consuming. Novel biotechnological tools enable fast cultivar development with precision, and facilitate mobilization of genes from wild-weedy relatives, which are rich in genes conferring resistance/tolerance to biotic and biotic stresses, required to combat CC challenge. In view of CC stress on water resources, improving water-use efficiency (WUE) has gained importance. Sensor-based micro-irrigation/fertigation has great potential to enhance water and fertilizer-use efficiency. Similarly, the application of other smart technologies like nanotechnology, sensor-based pesticide application, bio-fertilizers and bio-pesticides, need to be mobilised. In view of agro-ecological diversity in India, right-sized regionspecific technology packages have to be developed implying that crop
{"title":"Climate change shocks and crop production: The foodgrain bowl of India as an example","authors":"B.S. DHILLON, V.S. SOHU","doi":"10.59797/ija.v69i1.5474","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5474","url":null,"abstract":"Global warming is causing climate change (CC) characterized by increased frequency of heatwaves, droughts, erratic rains, hailstorms, cloudbursts, floods, landslides etc. The CC has already adversely affected ecosystems. In spite of efforts to mitigate greenhouse gas (GHG) emissions, which lead to warming, the global temperature during 2011–20 was 1.1°C above that during pre-industrial era. The projections are that warming will continue to increase and adverse effects will intensify particularly in developing countries like India. In India a number of studies have recorded wide spatial variability in rainfall, though, many reported a general overall negative trend since mid-20th century. Further, varying pattern of rainfall has been recorded in three agroclimatic regions of Punjab state, the granary of India. Unseasonal rains followed by spiked temperature during winter (rabi) season of 2021–22 reduced wheat (Triticum aestivum L.) yield in Punjab by 651 kg/ha and by 301 kg/ha in Haryana compared to 2020–21. Further, the grain was of lower quality. During rainy (kharif) season of 2022, Southern Rice Black-streaked Dwarf Virus (SRBSDV), appeared for the first time in Punjab and Haryana. Some farmers ploughed the affected fields. Adverse weather during rabi 2022–23 also, reduced the wheat yield (143–150 kg/ha) in these states. At the national level, erratic weather during rabi 2021–22 and kharif 2022 caused losses of about 3 mt of grain of each of wheat and rice (Oryza sativa L.). The projected increased adverse effects due to intensified CC include food insecurity. Thus, there is an emergent need to accelerate implementation of adaptation and mitigation strategies in agriculture. The adaptation options include cultivar improvement, conservation agriculture altering growing seasons, crop diversification and sustainable soil, and water resource management. In the process of adaptive management of crop production, adjusting sowing dates and breeding cultivars having varying duration in consonance with CC has been one of the central aspects. Shifting sowing dates to find appropriate crop cultivation season is a low-cost measure. However, cultivar development is time and resource consuming. Novel biotechnological tools enable fast cultivar development with precision, and facilitate mobilization of genes from wild-weedy relatives, which are rich in genes conferring resistance/tolerance to biotic and biotic stresses, required to combat CC challenge. In view of CC stress on water resources, improving water-use efficiency (WUE) has gained importance. Sensor-based micro-irrigation/fertigation has great potential to enhance water and fertilizer-use efficiency. Similarly, the application of other smart technologies like nanotechnology, sensor-based pesticide application, bio-fertilizers and bio-pesticides, need to be mobilised. In view of agro-ecological diversity in India, right-sized regionspecific technology packages have to be developed implying that crop ","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"29 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141011303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Subhra Mishra, B. Behera, S. Dash, S. D. Behera, A. K. Behura, B. K. Sahoo, S. Nanda
An experiment was conducted during winter (rabi) season of 2021–22 at Agricultural Research Station, Chhatabar, Institute of Agricultural Sciences, Siksha ‘O’ Anusandhan (Deemed to be) University, Bhubaneswar, Odisha to study the effect of weed and nutrient management practices on weed dynamics, yield and economics of winter transplanted organic chia (Salvia hispanica L.). The experiment was conducted in split plot design having 6 weed and 5 nutrient management practices with three replications. Among 6 weed management practices, hoeing and weeding twice at 20 and 35 days after transplanting (DAT) recorded the minimum density and biomass of weeds with weed control efficiency of 85 and 79.4% at 40 DAT and harvest, respectively. Nerium leaf aqueous extract (NLAE) 5% + castor leaf aqueous extract (CLAE) 5% + manual weeding at 35 DAT proved equally effective in weed control. Hoeing and weeding twice with 9 t/ha FYM + green manuring + Jeevamrit gave the seed, oil and protein yield of 730, 204 and 145 kg/ha, as against 720, 205 and 136 kg/ha, respectively. Weed management by NLAE 5% + CLAE 5% + manual weeding integrated with 9 t/ha FYM + green manuring + Jeevamrit and both, being statistically at par, proved to be significantly superior to all other treatment combinations. These two treatment combinations recorded statistically similar net return and return per rupee investment, and proved significantly superior to all others.
{"title":"Weed dynamics, yield and economics of winter transplanted organic chia (Salvia hispanica L.) under nutrient and weed management","authors":"Subhra Mishra, B. Behera, S. Dash, S. D. Behera, A. K. Behura, B. K. Sahoo, S. Nanda","doi":"10.59797/ija.v69i1.5491","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5491","url":null,"abstract":"An experiment was conducted during winter (rabi) season of 2021–22 at Agricultural Research Station, Chhatabar, Institute of Agricultural Sciences, Siksha ‘O’ Anusandhan (Deemed to be) University, Bhubaneswar, Odisha to study the effect of weed and nutrient management practices on weed dynamics, yield and economics of winter transplanted organic chia (Salvia hispanica L.). The experiment was conducted in split plot design having 6 weed and 5 nutrient management practices with three replications. Among 6 weed management practices, hoeing and weeding twice at 20 and 35 days after transplanting (DAT) recorded the minimum density and biomass of weeds with weed control efficiency of 85 and 79.4% at 40 DAT and harvest, respectively. Nerium leaf aqueous extract (NLAE) 5% + castor leaf aqueous extract (CLAE) 5% + manual weeding at 35 DAT proved equally effective in weed control. Hoeing and weeding twice with 9 t/ha FYM + green manuring + Jeevamrit gave the seed, oil and protein yield of 730, 204 and 145 kg/ha, as against 720, 205 and 136 kg/ha, respectively. Weed management by NLAE 5% + CLAE 5% + manual weeding integrated with 9 t/ha FYM + green manuring + Jeevamrit and both, being statistically at par, proved to be significantly superior to all other treatment combinations. These two treatment combinations recorded statistically similar net return and return per rupee investment, and proved significantly superior to all others.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"336 4‐5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141011990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Legumes play a significant role in sustainable agriculture through their ability to improve soil fertility and health. With a mutual symbiotic relationship with some bacteria in soil, they can improve nitrogen (N) amount through biological N-fixation (BNF). But to maximize such functions, legumes need more phosphorus (P) as it is required for energy transformation in nodules. Besides, P also plays a significant role in root development, nutrient uptake and growth of legume crops. A field experiment was conducted during rainy (kharif) season of 2019 at IFS unit, College of Agriculture, (University of Agricultural Sciences, Dharwad), Vijayapur, Karnataka to study the effect of different combination of organic sources on phosphorus dynamics of blackgram [Vigna mungo (L.) Hepper]. Among different treatments, the application of vermicompost + ghanajeevamrutha @ 100% RDP + Rhizobium + PSB recorded significantly higher soil available phosphorus (36.30 kg/ha) and uptake by blackgram (16.08 kg/ha). This study has demonstrated the dynamics of phosphorus through different organic sources in blackgram.
{"title":"Effect of different organic amendments on phosphorus dynamics of blackgram (Vigna mungo)","authors":"Nallagatla Vinod, Kumar","doi":"10.59797/ija.v69i1.5493","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5493","url":null,"abstract":"Legumes play a significant role in sustainable agriculture through their ability to improve soil fertility and health. With a mutual symbiotic relationship with some bacteria in soil, they can improve nitrogen (N) amount through biological N-fixation (BNF). But to maximize such functions, legumes need more phosphorus (P) as it is required for energy transformation in nodules. Besides, P also plays a significant role in root development, nutrient uptake and growth of legume crops. A field experiment was conducted during rainy (kharif) season of 2019 at IFS unit, College of Agriculture, (University of Agricultural Sciences, Dharwad), Vijayapur, Karnataka to study the effect of different combination of organic sources on phosphorus dynamics of blackgram [Vigna mungo (L.) Hepper]. Among different treatments, the application of vermicompost + ghanajeevamrutha @ 100% RDP + Rhizobium + PSB recorded significantly higher soil available phosphorus (36.30 kg/ha) and uptake by blackgram (16.08 kg/ha). This study has demonstrated the dynamics of phosphorus through different organic sources in blackgram.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"307 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shrvan Kumar, A. Chinchmalatpure, Monika Shukla, D. David Camus, Bisweswar Gorain
A study was carried out during winter (rabi) seasons of 2018 and 2019 at research farm of ICAR-Central Soil Salinity Research Institute, Regional Research Station, Bharuch, Gujarat to find out the effect of various halophilic microbial formulations in combination of organic manure and chemical fertilizers on winter (rabi) wheat (Triticum aestivum L.) productivity under saline Vertisols. Experiment was conducted in a randomized block design (RBD) comprised of 5 treatments, viz. T1 , Un-inoculated + Vermicompost @2.5 t/ha + 100% RDF (recommended dose of fertilizers); T2 , Un-inoculated + Vermicompost @2.5 t/ha + 75% RDF; T3 , Vermicompost @2.5 t/ha + 75% RDF + Halo-Azo inoculation; T4 , Vermicompost @2.5 t/ha + 75% RDF + Halo-PSB inoculation; and T5 , Vermicompost @2.5 t/ha + 75% RDF + Mix of Halo-Azo and Halo-PSB inoculation, replicated thrice. Results showed that application of different halophilic microbial formulations like Halo-Azo (Azotobacter sp. and Bacillus sp.) and Halo-PSB (consortia of Eneterobacter and Brevibacterium sp.) with vermicompost @2.5 t/ha + 75% RDF (recommended dose of fertilizers), provided at par yield with full dose (120 : 60 : 00; N : P : K kg/ha) of fertilizers, thus able to reduce 25% chemical fertilizer dose. Halo-Azo formulation performed better for improving crop yield as compared to Halo-PSB formulation. Combined application of Halo-Azo and Halo-PSB with vermicompost @2.5 t/ha and 75% RDF performed the best and provided significantly higher grain yield (2.75 t/ha) as compared to other treatments. Single and combined application of Halo-Azo and Halo-PSB with vermicompost @2.5 t/ha and 75% RDF also improved soil health parameters and significant results, i.e. declined EC (2.46 dS/m) and pH (7.33), improved organic carbon (0.69%) and nutrient availability (available N: 299.8 kg/ha and P: 28.7 kg/ha) were obtained. Results showed that integration of halophilic microbial formulations with organics and chemical fertilizers was able to improve wheat yield up to 15% than conventional farming under saline Vertisols of Gujarat.
{"title":"Halophilic microbial formulations for improving crop productivity and soil health under saline Vertisols of Gujarat","authors":"Shrvan Kumar, A. Chinchmalatpure, Monika Shukla, D. David Camus, Bisweswar Gorain","doi":"10.59797/ija.v69i1.5483","DOIUrl":"https://doi.org/10.59797/ija.v69i1.5483","url":null,"abstract":"A study was carried out during winter (rabi) seasons of 2018 and 2019 at research farm of ICAR-Central Soil Salinity Research Institute, Regional Research Station, Bharuch, Gujarat to find out the effect of various halophilic microbial formulations in combination of organic manure and chemical fertilizers on winter (rabi) wheat (Triticum aestivum L.) productivity under saline Vertisols. Experiment was conducted in a randomized block design (RBD) comprised of 5 treatments, viz. T1 , Un-inoculated + Vermicompost @2.5 t/ha + 100% RDF (recommended dose of fertilizers); T2 , Un-inoculated + Vermicompost @2.5 t/ha + 75% RDF; T3 , Vermicompost @2.5 t/ha + 75% RDF + Halo-Azo inoculation; T4 , Vermicompost @2.5 t/ha + 75% RDF + Halo-PSB inoculation; and T5 , Vermicompost @2.5 t/ha + 75% RDF + Mix of Halo-Azo and Halo-PSB inoculation, replicated thrice. Results showed that application of different halophilic microbial formulations like Halo-Azo (Azotobacter sp. and Bacillus sp.) and Halo-PSB (consortia of Eneterobacter and Brevibacterium sp.) with vermicompost @2.5 t/ha + 75% RDF (recommended dose of fertilizers), provided at par yield with full dose (120 : 60 : 00; N : P : K kg/ha) of fertilizers, thus able to reduce 25% chemical fertilizer dose. Halo-Azo formulation performed better for improving crop yield as compared to Halo-PSB formulation. Combined application of Halo-Azo and Halo-PSB with vermicompost @2.5 t/ha and 75% RDF performed the best and provided significantly higher grain yield (2.75 t/ha) as compared to other treatments. Single and combined application of Halo-Azo and Halo-PSB with vermicompost @2.5 t/ha and 75% RDF also improved soil health parameters and significant results, i.e. declined EC (2.46 dS/m) and pH (7.33), improved organic carbon (0.69%) and nutrient availability (available N: 299.8 kg/ha and P: 28.7 kg/ha) were obtained. Results showed that integration of halophilic microbial formulations with organics and chemical fertilizers was able to improve wheat yield up to 15% than conventional farming under saline Vertisols of Gujarat.","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":"326 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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