A field experiment was conducted at Agronomy field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from June to December 2017 with seventeen aromatic rice varieties viz., V1= Chiniatap 1, V2= Chiniatap 2, V3= Kataribhog 1, V4= Kataribhog 2, V5= BRRI dhan34, V6= BRRI dhan37, V7= BRRI dhan38, V8= BR5/Dulabhog, V9= Khoisanne, V10 = Sadasanne, V11= Zirabhog, V12= Begun bichi, V13= Shakkhorkhora, V14= Chinigura, V15= Kalijira, V16= Badshabhog, V17= Modhumala to study on growth and yield of some aromatic rice varieties. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Regarding growth and yield parameters, the highest number of total tillers hill−1 (23.33), leaf area index (5.38), flag leaf length (30.12 cm), number of effective tillers hill−1 (21.67), panicle length (32.00 cm), number of grains panicle−1 (230.3), number of filled grains panicle−1 (212.7), grain yield (3.42 t ha−1), straw yield (6.19 t ha−1) and number of biological yield (9.610 t ha−1) were found in var. BRRI dhan37 but the highest 1000- grains weight (22.80 g) and harvest index (37.48%) were found Modhumala followed by BRRI dhan34, respectively. The lowest number of effective tillers hill−1 (13.33), panicle length (24.67 cm), grain yield (1.583 t ha−1), straw yield (4.083 t ha−1), biological yield (5.667 t ha−1) and harvest index (27.89%) were found in the var. Modhumala.
Bangladesh Agron. J. 2023, 26(1): 1-8
2017年6月至12月，在达卡Sher-e-Bangla农业大学农学田间进行了17个芳香水稻品种的田间试验，分别为V1= Chiniatap 1, V2= Chiniatap 2, V3= Kataribhog 1, V4= Kataribhog 2, V5= BRRI dhan34, V6= BRRI dhan37, V7= BRRI dhan38, V8= BR5/Dulabhog, V9= Khoisanne, V10 = Sadasanne, V11= Zirabhog, V12= Begun bichi, V13= Shakkhorkhora, V14= Chinigura, V15= Kalijira, V16= Badshabhog，V17= Modhumala研究一些芳香水稻品种的生长和产量。实验采用随机完全区组设计(RCBD)， 3个重复。在生长和产量参数方面，总分蘖数最高(23.33)，叶面积指数最高(5.38)，旗叶长最高(30.12 cm)，有效分蘖数最高(21.67)，穗长最高(32.00 cm)，穗数最高(230.3)，实粒数最高(212.7)，籽粒产量最高(3.42 t ha - 1);品种BRRI dhan37秸秆产量最高(6.19 t ha - 1)，生物产量最高(9.610 t ha - 1)，千粒重最高(22.80 g)，收获指数最高(37.48%)，BRRI dhan34次之。有效分蘖数(13.33)、穗长(24.67 cm)、籽粒产量(1.583 t ha−1)、秸秆产量(4.083 t ha−1)、生物产量(5.667 t ha−1)和收获指数(27.89%)最低。孟加拉国阿格龙。[j] .生物医学工程学报，2016,26(1):1-8
{"title":"Study on growth and yield of some aromatic rice varieties","authors":"TA Masud, TS Roy, A Rahman, MH Mahmud, MD Hossain","doi":"10.3329/baj.v26i1.47646","DOIUrl":"https://doi.org/10.3329/baj.v26i1.47646","url":null,"abstract":"A field experiment was conducted at Agronomy field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from June to December 2017 with seventeen aromatic rice varieties viz., V1= Chiniatap 1, V2= Chiniatap 2, V3= Kataribhog 1, V4= Kataribhog 2, V5= BRRI dhan34, V6= BRRI dhan37, V7= BRRI dhan38, V8= BR5/Dulabhog, V9= Khoisanne, V10 = Sadasanne, V11= Zirabhog, V12= Begun bichi, V13= Shakkhorkhora, V14= Chinigura, V15= Kalijira, V16= Badshabhog, V17= Modhumala to study on growth and yield of some aromatic rice varieties. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Regarding growth and yield parameters, the highest number of total tillers hill−1 (23.33), leaf area index (5.38), flag leaf length (30.12 cm), number of effective tillers hill−1 (21.67), panicle length (32.00 cm), number of grains panicle−1 (230.3), number of filled grains panicle−1 (212.7), grain yield (3.42 t ha−1), straw yield (6.19 t ha−1) and number of biological yield (9.610 t ha−1) were found in var. BRRI dhan37 but the highest 1000- grains weight (22.80 g) and harvest index (37.48%) were found Modhumala followed by BRRI dhan34, respectively. The lowest number of effective tillers hill−1 (13.33), panicle length (24.67 cm), grain yield (1.583 t ha−1), straw yield (4.083 t ha−1), biological yield (5.667 t ha−1) and harvest index (27.89%) were found in the var. Modhumala.
 Bangladesh Agron. J. 2023, 26(1): 1-8","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"6 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391800","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}
SS Kakon, JA Chowdhury, MZ Ali, MR Karim, DA Chowdhury
A field experiment was conducted during during rabi seasons (December to March) of 2019-20 and 2020-21 to find out optimum plant spacing and fertilizer levels on yield of baby corn. Three plant spacing viz, S1=40 cm × 20 cm (1,25000 plants ha−1), S2=50 cm × 20 cm (100000 plants ha−1) and S3 =60 cm × 20 cm (83333 plants ha−1) and three fertilizer doses viz, F1 = 150- 30- 50- 25-3. 5- 1.5 kg ha−1of NPKSZnB (Recommended fertilizer dose for baby corn), F2 = F1 + 25% NPK and F3 = F1 + 50% NPK, were used as treatments. Results revealed that, planting geometry and fertilizer levels showed great influence on leaf area index (LAI), light interception, dry matter production and yield of babycorn. LAI was found the highest with the population of 125000 plants ha−1 receiving N225 P45 K75 kg ha−1.Light absorption was maximum at densely plant population with N225P45K75 kg ha−1. Response of soil-plant-analysis development (SPAD) value to planting geometry and fertilizer level was found significant. Plants grown with 40 cm × 20 cm spacing (125000 plants ha−1) with recommended ferltilizer dose + 50% N- P- K of RF gave the highest dehusked cob yield over the years (3.42 and 3.73 t ha–1) which was followed by 40cm × 20 cm (1,25,000 plants ha−1) with recommended fertilizer dose + 25% N-P-K of RF. Though S1F3 combination gave the highest gross return (Tk.333140 ha–1 in 2019-20 and Tk. 378900 ha–1 in 2020-21) but the highest benefit cost ratio over the years (3.64 and 3.83) was recorded in S1F2 treatment. The overall results indicated that 40 cm × 20 cm (1,25,000 plants ha−1) with fertilizer dose of RFD + 25% NPK (N187.5 P37.5K62.5 S25Zn3. 5B1.5 kg ha−1) might be economically profitable for baby corn production.
Bangladesh Agron. J. 2023, 26(1): 96-103
在2019- 2020年和2020- 2021年两季(12月~ 3月)进行了田间试验，以确定最佳种植间距和施肥水平对玉米产量的影响。三个株距，即S1=40厘米× 20厘米(1,25000株公顷- 1)，S2=50厘米× 20厘米(100000株公顷- 1)和S3 =60厘米× 20厘米(83333株公顷- 1)和三个施肥剂量，即F1 = 150- 30- 50- 25-3。施用5 ~ 1.5 kg h_1 - 1 NPKSZnB(幼玉米推荐施肥剂量)，F2 = F1 + 25%氮磷钾和F3 = F1 + 50%氮磷钾。结果表明，种植形态和施肥水平对玉米叶面积指数(LAI)、光截留量、干物质产量和产量有较大影响。在N225 P45 K75 kg ha - 1处理下，LAI最高，为125000株ha - 1。N225P45K75 kg ha−1时，植株密度最大。土壤-植物分析发育(SPAD)值对种植形态和施肥水平的响应显著。施用40cm × 20 cm间距(125000株hm - 1)、推荐施肥剂量+ 50% N-P-K的RF的植株脱壳玉米产量最高(3.42和3.73 t hm - 1)，其次是施用40cm × 20 cm(125000株hm - 1)、推荐施肥剂量+ 25% N-P-K的RF。尽管S1F3组合的总回报最高(2019-20年为333140 ha-1, 2020-21年为378900 ha-1)，但历年收益成本比最高的是S1F2处理，分别为3.64和3.83。总体结果表明，在RFD + 25% NPK (N187.5 P37.5K62.5 S25Zn3的施肥剂量下，在40 cm × 20 cm(1,25,000株ha−1)的条件下，可有效提高水稻的生长效率。5B1.5 kg ha - 1)可能对玉米苗生产具有经济效益。
孟加拉国阿格龙。[j] .生物医学工程学报，2016,26(1):96-103
{"title":"Effects of Planting Geometry and Fertilizer Management on Light Interception, Chlorophyll Content and Productivity in Baby Corn Cultivation","authors":"SS Kakon, JA Chowdhury, MZ Ali, MR Karim, DA Chowdhury","doi":"10.3329/baj.v26i1.69769","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69769","url":null,"abstract":"A field experiment was conducted during during rabi seasons (December to March) of 2019-20 and 2020-21 to find out optimum plant spacing and fertilizer levels on yield of baby corn. Three plant spacing viz, S1=40 cm × 20 cm (1,25000 plants ha−1), S2=50 cm × 20 cm (100000 plants ha−1) and S3 =60 cm × 20 cm (83333 plants ha−1) and three fertilizer doses viz, F1 = 150- 30- 50- 25-3. 5- 1.5 kg ha−1of NPKSZnB (Recommended fertilizer dose for baby corn), F2 = F1 + 25% NPK and F3 = F1 + 50% NPK, were used as treatments. Results revealed that, planting geometry and fertilizer levels showed great influence on leaf area index (LAI), light interception, dry matter production and yield of babycorn. LAI was found the highest with the population of 125000 plants ha−1 receiving N225 P45 K75 kg ha−1.Light absorption was maximum at densely plant population with N225P45K75 kg ha−1. Response of soil-plant-analysis development (SPAD) value to planting geometry and fertilizer level was found significant. Plants grown with 40 cm × 20 cm spacing (125000 plants ha−1) with recommended ferltilizer dose + 50% N- P- K of RF gave the highest dehusked cob yield over the years (3.42 and 3.73 t ha–1) which was followed by 40cm × 20 cm (1,25,000 plants ha−1) with recommended fertilizer dose + 25% N-P-K of RF. Though S1F3 combination gave the highest gross return (Tk.333140 ha–1 in 2019-20 and Tk. 378900 ha–1 in 2020-21) but the highest benefit cost ratio over the years (3.64 and 3.83) was recorded in S1F2 treatment. The overall results indicated that 40 cm × 20 cm (1,25,000 plants ha−1) with fertilizer dose of RFD + 25% NPK (N187.5 P37.5K62.5 S25Zn3. 5B1.5 kg ha−1) might be economically profitable for baby corn production.
 Bangladesh Agron. J. 2023, 26(1): 96-103","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"7 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391880","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 Sultana, MF Karim, MH Mahmud, SC Sarker, MD Hossain
An experiment was conducted at Sher-e-Bangla Agricultural University farm, Dhaka to investigate the effect of variety and leaf clipping on the growth and yield of blackgram (Vigna mungo L.) from March to June-2019. The experiment was laid out in a split-plot design with three replications. The treatments were Blackgram variety (3); V1: BARI Mash-1, V2: BARI Mash-2 and V3: BARI Mash-3, and leaf clipping (4); C0: No leaf clipping (control), C1: Clipping of 1st basal leaf, C2: Clipping of 2nd basal leaves and C3: Clipping of total apical leaves having no inflorescence. Growth, yield and yield contributing characteristics were compared under different treatments. Results indicated that variety and leaf clipping significantly affected most of the growth and yield contributing characteristics of blackgram. In the case of variety, mthe aximum value of the yield and yield contributing characteristics such as pod−1 length (8.99 cm), pods plant−1 (14.00), number of seeds pod−1 (9.78), 1000 seeds weight (48.58 g), and seed yield (1381.70 kg ha−1), were observed in var. BARI Mash-3. In the case of leaf clipping, maximum pod length (8.44 cm), pods plant−1 (15.18), seeds pod (9.32), 1000- seeds weight (48.33 g), seed yield (1306.7 kg ha−1), was recorded in Clipping of 1st basal leaf treatment. The blackgram var. BARI Mash-3 and clipping of 1st basal leaf was found superior in producing maximum pod length (9.32 cm), number of pods plant−1 (16.87), number of seeds pod−1 (10.80), 1000- seeds weight (51.67 g), and seed yield (1456.70 kg ha−1). So, var. BARI Mash-3 and clipping of 1st basal leaf may improve the growth and yield of blackgram.
Bangladesh Agron. J. 2023, 26(1): 9-17
2019年3月至6月，在达卡Sher-e-Bangla农业大学农场进行了一项试验，研究了品种和叶片修剪对黑姜(Vigna mungo L.)生长和产量的影响。该实验采用裂图设计，有三个重复。处理为Blackgram品种(3);V1: BARI Mash-1, V2: BARI Mash-2, V3: BARI Mash-3，剪叶(4);C0:不剪叶(对照)，C1:剪第1基叶，C2:剪第2基叶，C3:剪顶端无花序的全叶。比较了不同处理下的生长、产量和产量贡献特性。结果表明，品种和叶片修剪对黑豆的大部分生长和产量贡献特性有显著影响。就品种而言，在BARI mash3中观察到最大产量和产量贡献特征，如荚长(8.99 cm)、荚株数(14.00)、种子荚数(9.78)、千粒重(48.58 g)和种子产量(1381.70 kg ha - 1)。在剪叶处理中，剪叶处理的最大荚果长度(8.44 cm)、荚果面积(15.18)、种子荚果面积(9.32)、千粒重(48.33 g)、籽粒产量(1306.7 kg ha - 1)。黑格品种BARI mash3和第1基叶剪枝在最大荚果长(9.32 cm)、荚果数- 1(16.87)、荚果数- 1(10.80)、千粒重(51.67 g)和籽粒产量(1456.70 kg ha - 1)方面具有优势。因此，var BARI Mash-3和基部第1叶的修剪可以促进黑麦的生长和产量。
孟加拉国阿格龙。[j] .生物医学工程学报，2016,26(1):9-17
{"title":"Effect of leaf clipping on growth and yield of blackgram (Vigna mungo L.)","authors":"A Sultana, MF Karim, MH Mahmud, SC Sarker, MD Hossain","doi":"10.3329/baj.v26i1.52464","DOIUrl":"https://doi.org/10.3329/baj.v26i1.52464","url":null,"abstract":"An experiment was conducted at Sher-e-Bangla Agricultural University farm, Dhaka to investigate the effect of variety and leaf clipping on the growth and yield of blackgram (Vigna mungo L.) from March to June-2019. The experiment was laid out in a split-plot design with three replications. The treatments were Blackgram variety (3); V1: BARI Mash-1, V2: BARI Mash-2 and V3: BARI Mash-3, and leaf clipping (4); C0: No leaf clipping (control), C1: Clipping of 1st basal leaf, C2: Clipping of 2nd basal leaves and C3: Clipping of total apical leaves having no inflorescence. Growth, yield and yield contributing characteristics were compared under different treatments. Results indicated that variety and leaf clipping significantly affected most of the growth and yield contributing characteristics of blackgram. In the case of variety, mthe aximum value of the yield and yield contributing characteristics such as pod−1 length (8.99 cm), pods plant−1 (14.00), number of seeds pod−1 (9.78), 1000 seeds weight (48.58 g), and seed yield (1381.70 kg ha−1), were observed in var. BARI Mash-3. In the case of leaf clipping, maximum pod length (8.44 cm), pods plant−1 (15.18), seeds pod (9.32), 1000- seeds weight (48.33 g), seed yield (1306.7 kg ha−1), was recorded in Clipping of 1st basal leaf treatment. The blackgram var. BARI Mash-3 and clipping of 1st basal leaf was found superior in producing maximum pod length (9.32 cm), number of pods plant−1 (16.87), number of seeds pod−1 (10.80), 1000- seeds weight (51.67 g), and seed yield (1456.70 kg ha−1). So, var. BARI Mash-3 and clipping of 1st basal leaf may improve the growth and yield of blackgram.
 Bangladesh Agron. J. 2023, 26(1): 9-17","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"7 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392004","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}
M Ahmed, JF Tanni, SMS Parvej, SA Jui, MSA Mamun, S Mitra
A study was conducted at the Jute Research Sub-Station (JRSS), Tarabo, Narayanganj in 2022 to find out the suitable varieties and field duration for tossa jute (Corcorus olitorius) harvesting for better fibre and stick yield production. The treatment was assigned of tossa jute varieties (3) viz., BJRI Tossa pat-7, Robi-1 (BJRI Tossa pat-8) and Indian variety JRO-524 and four field durations viz. 90, 100, 110, and 120 days, respectively. A factorial RCBD design with three replications was used. Results showed that varieties and field duration significantly affected plant height, base diameter, fibre yield and stick yield. The var. JRO-524 had the highest fibre yield (2.30 tha−1) than BJRI Tossa Pat-7 and Robi-1(2.10 tha−1 and 2.25 tha−1 respectively) when harvested at 90 days after sowing (DAS). On the other hand, BJRI Tossa pat-7 and Robi-1 produced significantly higher fibre yields (3.20 tha−1 and 3.55 tha−1; 3.45 tha−1 and 3.80 tha−1 respectively) and stick yields (6.15 tha−1, and 6.25 tha−1; 6.67 tha−1, and 6.84 tha−1 respectively) at harvesting 110 and 120 DAS. The results showed that var. BJRI Tossa pat-7 and BJRI Tossa pat-8 could be a better fibre yield and stick yield production when it could be harvested at 120 DAS.
Bangladesh Agron. J. 2023, 26(1): 18-27
{"title":"Assessment of Yield and Yield Attributes of Tossa Jute as Affected by Variety and Field Duration","authors":"M Ahmed, JF Tanni, SMS Parvej, SA Jui, MSA Mamun, S Mitra","doi":"10.3329/baj.v26i1.52461","DOIUrl":"https://doi.org/10.3329/baj.v26i1.52461","url":null,"abstract":"A study was conducted at the Jute Research Sub-Station (JRSS), Tarabo, Narayanganj in 2022 to find out the suitable varieties and field duration for tossa jute (Corcorus olitorius) harvesting for better fibre and stick yield production. The treatment was assigned of tossa jute varieties (3) viz., BJRI Tossa pat-7, Robi-1 (BJRI Tossa pat-8) and Indian variety JRO-524 and four field durations viz. 90, 100, 110, and 120 days, respectively. A factorial RCBD design with three replications was used. Results showed that varieties and field duration significantly affected plant height, base diameter, fibre yield and stick yield. The var. JRO-524 had the highest fibre yield (2.30 tha−1) than BJRI Tossa Pat-7 and Robi-1(2.10 tha−1 and 2.25 tha−1 respectively) when harvested at 90 days after sowing (DAS). On the other hand, BJRI Tossa pat-7 and Robi-1 produced significantly higher fibre yields (3.20 tha−1 and 3.55 tha−1; 3.45 tha−1 and 3.80 tha−1 respectively) and stick yields (6.15 tha−1, and 6.25 tha−1; 6.67 tha−1, and 6.84 tha−1 respectively) at harvesting 110 and 120 DAS. The results showed that var. BJRI Tossa pat-7 and BJRI Tossa pat-8 could be a better fibre yield and stick yield production when it could be harvested at 120 DAS.
 Bangladesh Agron. J. 2023, 26(1): 18-27","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"8 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392132","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}
Optimization of plant spacing, and fertilizer dose is very important for realizing maximum yield of a crop. An experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during November 2020 to March 2021 to determine the effect of different spacing and NPK fertilizer levels on yield and yield attributes of chia seed. The experiment consisted of four different spacing viz. 30 cm × 15 cm (S1), 30 cm × 30 cm (S2), 40 cm × 15 cm (S3) and 40 cm × 30 cm (S4) and five levels of NPK fertilizer viz. No NPK (F0), 30: 20: 25 kg NPK ha-1 (F1), 60: 40: 50 kg NPK ha-1 (F2), 90: 60: 75 kg NPK ha-1 (F3) and 120: 80: 100 kg NPK ha-1 (F4). The experiment was laid out in a factorial randomized complete block design (RCBD) with three replications. The results revealed that 40 cm × 30 cm spacing produced the highest number of inflorescences plant-1, seed yield and haulm yield. The fertilizer level 90: 60: 75 kg NPK ha-1 showed the highest seed yield and haulm yield while 120:80 :100 kg NPK ha-1 exhibited the maximum number of inflorescences plant-1. The combination of 30 cm ×30 cm spacing and 90: 60: 75 kg NPK ha-1 produced the highest number of inflorescences plant-1 and seed yield whereas the combination of 40 cm × 30 cm spacing and 90: 60: 75 kg NPK ha-1 had the highest haulm yield. The present study concluded that cultivation of chia at a spacing of 30 cm × 30 cm and fertilized with 90: 60: 75 kg NPK ha-1 could be considered as the promising practice for reasonable seed yield.
Bangladesh Agron. J. 2023, 26(1): 122-127
优化株距和施肥量是实现作物最大产量的关键。本试验于2020年11月至2021年3月在孟加拉国农业大学Mymensingh农学田间实验室进行，旨在确定不同间距和氮磷钾施肥水平对奇亚籽产量和产量属性的影响。试验包括30 cm × 15 cm (S1)、30 cm × 30 cm (S2)、40 cm × 15 cm (S3)和40 cm × 30 cm (S4) 4种不同间距和5个氮磷钾施肥水平:不施氮磷钾(F0)、30:20:25 kg氮磷钾ha-1 (F1)、30:40:50 kg氮磷钾ha-1 (F2)、90:60:75 kg氮磷钾ha-1 (F3)和120:80:100 kg氮磷钾ha-1 (F4)。试验采用全因子随机区组设计(RCBD)， 3个重复。结果表明，40 cm × 30 cm间距下，植株-1的花序数、种子产量和收获产量最高。施肥水平为90:60:75 kg NPK ha-1时，植株-1的种子产量和收获产量最高，而施肥水平为120:80:100 kg NPK ha-1时植株-1的花序数最多。30 cm ×30 cm间距和90:60:75 kg NPK hm -1组合的花序数和种子产量最高，而40 cm ×30 cm间距和90:60:75 kg NPK hm -1组合的收获产量最高。本研究认为，以30 cm × 30 cm间距种植，施用90:60:75 kg氮磷钾ha-1，可获得合理的种子产量。孟加拉国阿格龙。[j] .中国生物医学工程学报，2016,26(1):122-127
{"title":"Yield Performance of Chia (Salvia Hispanica L.) In Response to Planting Spacing and Npk Fertilizers","authors":"Md Moshiur Rahman, Md Ariful Haque, Md Parvez Anwar","doi":"10.3329/baj.v26i1.69772","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69772","url":null,"abstract":"Optimization of plant spacing, and fertilizer dose is very important for realizing maximum yield of a crop. An experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during November 2020 to March 2021 to determine the effect of different spacing and NPK fertilizer levels on yield and yield attributes of chia seed. The experiment consisted of four different spacing viz. 30 cm × 15 cm (S1), 30 cm × 30 cm (S2), 40 cm × 15 cm (S3) and 40 cm × 30 cm (S4) and five levels of NPK fertilizer viz. No NPK (F0), 30: 20: 25 kg NPK ha-1 (F1), 60: 40: 50 kg NPK ha-1 (F2), 90: 60: 75 kg NPK ha-1 (F3) and 120: 80: 100 kg NPK ha-1 (F4). The experiment was laid out in a factorial randomized complete block design (RCBD) with three replications. The results revealed that 40 cm × 30 cm spacing produced the highest number of inflorescences plant-1, seed yield and haulm yield. The fertilizer level 90: 60: 75 kg NPK ha-1 showed the highest seed yield and haulm yield while 120:80 :100 kg NPK ha-1 exhibited the maximum number of inflorescences plant-1. The combination of 30 cm ×30 cm spacing and 90: 60: 75 kg NPK ha-1 produced the highest number of inflorescences plant-1 and seed yield whereas the combination of 40 cm × 30 cm spacing and 90: 60: 75 kg NPK ha-1 had the highest haulm yield. The present study concluded that cultivation of chia at a spacing of 30 cm × 30 cm and fertilized with 90: 60: 75 kg NPK ha-1 could be considered as the promising practice for reasonable seed yield.
 Bangladesh Agron. J. 2023, 26(1): 122-127","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"2 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392275","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 pot experiment was conducted in the vinyl house of Sher-e-Bangla Agricultural University (SAU), Dhaka-1207, during kharif-I season (March to June 2022) to identify waterlog tolerant mungbean genotypes. Thirty mungbean genotypes (29 advanced lines and one variety, BARI Mung-6) were evaluated under waterlogging (96 hours) and normal conditions. Waterlogging caused a drastic reduction in dry matter and seed yield in mungbean, however, genotypes showed variable response to waterlogging. Under waterlog condition the higher relative yield was found in M11, M8, M30, M7, M16 and M14 while lower in M2 and M17. Dry matter production also varied among the genotypes due to waterlogging; however, dry matter production of the genotypes M8, M7, M22, M2, M19 and M11 were comparatively higher than other genotypes. Stress tolerance index (STI), yield index (YI) and relative yield (RY) of M16, M20, M7, M8, M11, M30 and M14 were higher than other genotypes. On the basis of dry matter production, STI, YI and RY, genotypes M7, M8, M11, M12, M16, and M20 could be selected as relatively tolerant genotypes against waterlogging stress.
Bangladesh Agron. J. 2023, 26(1): 40-47
{"title":"Selection of Mungbean Genotypes Against Waterlogging Stress","authors":"MA Jahan, F Ahmed","doi":"10.3329/baj.v26i1.69757","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69757","url":null,"abstract":"A pot experiment was conducted in the vinyl house of Sher-e-Bangla Agricultural University (SAU), Dhaka-1207, during kharif-I season (March to June 2022) to identify waterlog tolerant mungbean genotypes. Thirty mungbean genotypes (29 advanced lines and one variety, BARI Mung-6) were evaluated under waterlogging (96 hours) and normal conditions. Waterlogging caused a drastic reduction in dry matter and seed yield in mungbean, however, genotypes showed variable response to waterlogging. Under waterlog condition the higher relative yield was found in M11, M8, M30, M7, M16 and M14 while lower in M2 and M17. Dry matter production also varied among the genotypes due to waterlogging; however, dry matter production of the genotypes M8, M7, M22, M2, M19 and M11 were comparatively higher than other genotypes. Stress tolerance index (STI), yield index (YI) and relative yield (RY) of M16, M20, M7, M8, M11, M30 and M14 were higher than other genotypes. On the basis of dry matter production, STI, YI and RY, genotypes M7, M8, M11, M12, M16, and M20 could be selected as relatively tolerant genotypes against waterlogging stress.
 Bangladesh Agron. J. 2023, 26(1): 40-47","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"6 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391797","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}
The study was carried out at Sher-e-Bangla Agricultural University, Dhaka from December 2018 to April 2019, to find out the agronomic practices on the growth and yield of Boro The trial was conducted with two rice varieties namely V1 (BRRI dhan84) and V2 (BRRI hybriddhan5), and 5 different agronomic practices such as M0 (no management), where variety in maim-plot and management practices in sub-plot. The results showed significant variations in weed severity, and l yield of Boro rice. Specific observations included plants reaching heights of 24.81 cm, 51.56 cm, 86.71 cm, and 119.21 cm at 20, 45, 70 days after transplanting (DAT), and at harvest, respectively. V2 exhibited a higher grain yield (5.36 t ha−1) but a reduced straw yield (4.97 t ha−1) compared to V1. Generally, regardless of the agronomic practices, BRRI dhan84 exhibited greater plant height, except under the 'no management' practice. The grain yield (6.70 t ha−1) was obtained with M6, and the maximum straw yield (6.55 t ha−1) to M4. The interaction effects showed that highest grain yield (7.35 t ha−1) from V2M6, while with V1M0.The most significant yield reduction for BRRI dhan84 was 84% with no management and 80% with no fertilizer, while BRRI hybriddhan5 showed a 71% reduction under similar conditions.
Bangladesh Agron. J. 2023, 26(1): 104-111
该研究于2018年12月至2019年4月在达卡的Sher-e-Bangla农业大学进行，以找出对Boro生长和产量的农艺措施。试验采用V1 (BRRI dhan84)和V2 (BRRI hybridhan5)两个水稻品种，以及M0(无管理)等5种不同的农艺措施，其中品种在主小区，管理措施在分小区。结果表明，水稻的杂草严重程度和产量存在显著差异。具体观察结果显示，移栽后20、45、70天和收获时植株高度分别达到24.81 cm、51.56 cm、86.71 cm和119.21 cm。与V1相比，V2籽粒产量更高(5.36 t ha - 1)，但秸秆产量降低(4.97 t ha - 1)。总体而言，除“无管理”外，BRRI dhan84在不同农艺措施下均表现出较高的株高。M6的籽粒产量为6.70 t ha - 1, M4的秸秆产量最高，为6.55 t ha - 1。互作效应表明，V2M6籽粒产量最高(7.35 tha - 1)，而V1M0籽粒产量最高(7.35 tha - 1)。BRRI dhan84在无管理和无施肥情况下产量降幅最大，分别为84%和80%，而BRRI hybridhan5在类似条件下产量降幅为71%。孟加拉国阿格龙。[j] .中国生物医学工程学报，2016,26(1):104-111
{"title":"Influence of Agronomic Managements on Growth and Yield of Boro Rice","authors":"JC Roy, PK Biswas, MS Islam, MH Mahmud","doi":"10.3329/baj.v26i1.69770","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69770","url":null,"abstract":"The study was carried out at Sher-e-Bangla Agricultural University, Dhaka from December 2018 to April 2019, to find out the agronomic practices on the growth and yield of Boro The trial was conducted with two rice varieties namely V1 (BRRI dhan84) and V2 (BRRI hybriddhan5), and 5 different agronomic practices such as M0 (no management), where variety in maim-plot and management practices in sub-plot. The results showed significant variations in weed severity, and l yield of Boro rice. Specific observations included plants reaching heights of 24.81 cm, 51.56 cm, 86.71 cm, and 119.21 cm at 20, 45, 70 days after transplanting (DAT), and at harvest, respectively. V2 exhibited a higher grain yield (5.36 t ha−1) but a reduced straw yield (4.97 t ha−1) compared to V1. Generally, regardless of the agronomic practices, BRRI dhan84 exhibited greater plant height, except under the 'no management' practice. The grain yield (6.70 t ha−1) was obtained with M6, and the maximum straw yield (6.55 t ha−1) to M4. The interaction effects showed that highest grain yield (7.35 t ha−1) from V2M6, while with V1M0.The most significant yield reduction for BRRI dhan84 was 84% with no management and 80% with no fertilizer, while BRRI hybriddhan5 showed a 71% reduction under similar conditions.
 Bangladesh Agron. J. 2023, 26(1): 104-111","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"8 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392134","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}
AHMMR Talukder, F Ahmed, IM Ahmed, SN Mahfuza, AFMS Ahsan, N Mokarraoma, MK Shahadat, L Nahar
Farmers’ frequently experience difficulties with their mungbean (indeterminate type) crops harvests due to continuous picking that prolong the pod-picking episode and cause an economic crisis. To solve these issues, deflowering strategies (sink manipulation) were employed in this study following the randomized complete block design. A series of deflowering strategies were started from 40 days after sowing (DAS) to 55 DAS; resulting reduced pod production as well as pod picking episode (3 to 4 times) with 6.8-36.8% seed yield compared to control. The minimum seed yield reduction was 6.8%; deflowering at 55 DAS; with the maximum gross margin Tk.112,800 ha−1. Considering relative yield, yield reduction, and gross margin, 50 or 55 days produced flower (which would be matured within 60-65 DAS) could be considered for obtaining the economic seed yield.
Bangladesh Agron. J. 2023, 26(1): 48-55
{"title":"Escalation of Growth and Yield in Mungbean by Sink Manipulation: An Approach for Minimizing Pod Picking Episode","authors":"AHMMR Talukder, F Ahmed, IM Ahmed, SN Mahfuza, AFMS Ahsan, N Mokarraoma, MK Shahadat, L Nahar","doi":"10.3329/baj.v26i1.69758","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69758","url":null,"abstract":"Farmers’ frequently experience difficulties with their mungbean (indeterminate type) crops harvests due to continuous picking that prolong the pod-picking episode and cause an economic crisis. To solve these issues, deflowering strategies (sink manipulation) were employed in this study following the randomized complete block design. A series of deflowering strategies were started from 40 days after sowing (DAS) to 55 DAS; resulting reduced pod production as well as pod picking episode (3 to 4 times) with 6.8-36.8% seed yield compared to control. The minimum seed yield reduction was 6.8%; deflowering at 55 DAS; with the maximum gross margin Tk.112,800 ha−1. Considering relative yield, yield reduction, and gross margin, 50 or 55 days produced flower (which would be matured within 60-65 DAS) could be considered for obtaining the economic seed yield.
 Bangladesh Agron. J. 2023, 26(1): 48-55","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"5 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391666","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 pot experiment was conducted during 2018-19 in a net house at the Department of Soil Science, Sher-e-Bangla Agricultural University, Dhaka, to determine fertilizer's effect on the growth and yield of Boro and T. Aman rice in the soils of industrially polluted agricultural land areas of Madhupur Tract. The study consisted of two factors, i.e., polluted soil viz., S1: Non-polluted soil, S2: polluted soil-1, S3: polluted soil-2, S4: polluted soil-3, and four fertilizer treatments viz., T0: Control, T1: N150P30K60S20Zn3.0 (100%RDCF), T2: N105P21K42S14Zn2.1 (70%RDCF) T3: N75P15K30S10Zn1.5(50%RDCF) The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Among the soils, the highest Boro rice grain yield of 90.83 g pot-1 was found in S2 (polluted soil-1) soil, and the lowest 41.66 g pot-1 in soil S1 (Non-polluted soil). The treatment T3(50% RDCF) fertilizer treatment gave the highest plant height (84.12 cm), effective tillers (42.5 hill–1), straw (112.58g pot –1) and grain yield (80.03g pot−1) of Boro rice. The higher grain and straw yields of Boro rice were obtained from two industrially polluted soils (S2 and S4). The maximum grain yield (112.3g pot–1) of Boro was found in S2T3 (Contaminated soil 1 and 50% RDCF) , which was statistically similar to S4T2 and S4T3 and lowest in the S1T0 treatment combination. The maximum T. Aman grain yield (38.75gpot−1) was obtained in soil S2 (polluted soil-1), which at par to S4 (polluted soil-3). The maximum T. Aman rice grain yield (36.68 g pot−1) was found in the T2 treatment, which was closely by T1 treatment. Similarly, the maximum T. Aman grain yield was obtained in S2T1 (Contaminated soil 1 and 100% RDCF) which was statistically similar to S2T2, S4T1, and S4T2 and lowest in the S1T0 treatment combination. The highest T. Aman straw yield was found in the S3T1 and lowest in the S1T0 treatment combination.
Bangladesh Agron. J. 2023, 26(1): 112-121
2018- 2019年，在达卡Sher-e-Bangla农业大学土壤科学系的一个网屋进行了盆栽试验，以确定肥料在Madhupur地块工业污染农用地土壤中对Boro和T. Aman水稻生长和产量的影响。试验包括2个因子，即污染土壤，S1:未污染土壤，S2:污染土壤-1,S3:污染土壤-2,S4:污染土壤-3,4个施肥处理，T0:对照，T1: N150P30K60S20Zn3.0 (100%RDCF)， T2: N105P21K42S14Zn2.1 (70%RDCF)， T3: N75P15K30S10Zn1.5(50%RDCF)。试验采用随机完全区组设计(RCBD)， 3个重复。土壤中，土壤S2(污染土壤-1)的米粒产量最高，为90.83 g pot-1，土壤S1(未污染土壤)的米粒产量最低，为41.66 g pot-1。T3(50% RDCF)肥处理的水稻株高(84.12 cm)、有效分蘖(42.5 hill-1)、秸秆(112.58g pot -1)和籽粒产量(80.03g pot -1)最高。在2种工业污染土壤(S2和S4)中，水稻的籽粒和秸秆产量均较高。籽粒产量最高的是S2T3(污染土壤1和50% RDCF)，与S4T2和S4T3具有统计学上的相似性，最低的是S1T0处理组合。土壤S2(污染土壤-1)和土壤S4(污染土壤-3)籽粒产量最高(38.75gpot−1)。T. Aman水稻产量以T2处理最高，为36.68 g，与T1处理相近。同样，在S2T1(污染土壤1和100% RDCF)处理下，T. Aman籽粒产量最高，与S2T2、S4T1和S4T2具有统计学上的相似性，S1T0处理组合产量最低。T. Aman秸秆产量最高的是S3T1处理，最低的是S1T0处理。孟加拉国阿格龙。[j] .中国生物医学工程学报，2016,26(1):112-121
{"title":"Effect of Fertilizer on the Growth and Yield of Boro and T. Aman Rice in the Soils of Industrially Polluted Agricultural Land Areas of Madhupur","authors":"MN Huda, SM Masum, MOA Mollick, MA Khan","doi":"10.3329/baj.v26i1.69771","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69771","url":null,"abstract":"A pot experiment was conducted during 2018-19 in a net house at the Department of Soil Science, Sher-e-Bangla Agricultural University, Dhaka, to determine fertilizer's effect on the growth and yield of Boro and T. Aman rice in the soils of industrially polluted agricultural land areas of Madhupur Tract. The study consisted of two factors, i.e., polluted soil viz., S1: Non-polluted soil, S2: polluted soil-1, S3: polluted soil-2, S4: polluted soil-3, and four fertilizer treatments viz., T0: Control, T1: N150P30K60S20Zn3.0 (100%RDCF), T2: N105P21K42S14Zn2.1 (70%RDCF) T3: N75P15K30S10Zn1.5(50%RDCF) The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Among the soils, the highest Boro rice grain yield of 90.83 g pot-1 was found in S2 (polluted soil-1) soil, and the lowest 41.66 g pot-1 in soil S1 (Non-polluted soil). The treatment T3(50% RDCF) fertilizer treatment gave the highest plant height (84.12 cm), effective tillers (42.5 hill–1), straw (112.58g pot –1) and grain yield (80.03g pot−1) of Boro rice. The higher grain and straw yields of Boro rice were obtained from two industrially polluted soils (S2 and S4). The maximum grain yield (112.3g pot–1) of Boro was found in S2T3 (Contaminated soil 1 and 50% RDCF) , which was statistically similar to S4T2 and S4T3 and lowest in the S1T0 treatment combination. The maximum T. Aman grain yield (38.75gpot−1) was obtained in soil S2 (polluted soil-1), which at par to S4 (polluted soil-3). The maximum T. Aman rice grain yield (36.68 g pot−1) was found in the T2 treatment, which was closely by T1 treatment. Similarly, the maximum T. Aman grain yield was obtained in S2T1 (Contaminated soil 1 and 100% RDCF) which was statistically similar to S2T2, S4T1, and S4T2 and lowest in the S1T0 treatment combination. The highest T. Aman straw yield was found in the S3T1 and lowest in the S1T0 treatment combination.
 Bangladesh Agron. J. 2023, 26(1): 112-121","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"6 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391884","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}
Weed management plays an important role in obtaining target yield. A field experiment was carried out at the Agronomy field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, from July to December 2019 to get the most effective weed control strategy for transplanted Aman rice. The soil of the study field was silty clay loam in nature. The study consisted of two factors i.e., variety (4: Chinigura, BR11(Mukta), BRRI dhan56, and BRRI hybrid dhan6) and herbicide (4) viz., Bispyribac-sodium WP @ 150 g ha-1, Acetochlor 14% + Bensulfuron methyl 4% WP @ 750 g ha-1, Pretilachlor 6% + pyrazosulfuron 0.15% WP @ 9.88 kg ha-1, and weedy check as a control. The experiment was laid out in a split-plot design with three replications. Thirteen weed species were found in the experimental plots, mostly broadleaf and sedge. Monochoria vaginalis was the most dominant weed species. The study noticed that the application of mixed herbicides offered better weed control over single herbicide application. Application of Acetochlor 14% + Bensulfuron methyl 4% WP @ 750 g ha-1 significantly reduced weed density and biomass and was the best way of controlling complex weed flora. The study marked out BR11 (Mukta) as the most potential aman rice variety to produce the highest yields at applying Acetochlor 14% + Bensulfuron methyl 4% WP @ 750 g ha-1. This treatment gave the highest gross return (Tk. 1,46,010), net return (Tk. 88,699), and benefit-cost ratio (2.55). Therefore, the study suggests the application of mixed herbicides and BR11 (Mukta) to get the optimum yield of transplanted Aman rice and maximum economic benefit.
Bangladesh Agron. J. 2023, 26(1): 56-74
杂草管理对实现目标产量起着重要作用。2019年7月至12月，在孟加拉国达卡Sher-e-Bangla农业大学农学大田进行了一项田间试验，以获得移栽阿曼水稻最有效的杂草控制策略。研究区土壤性质为粉质粘壤土。研究包括两个因素，即品种(4:Chinigura, BR11(Mukta)， BRRI dhan56和BRRI杂交dhan6)和除草剂(4)，即双嘧菌酯钠WP @ 150 g ha-1，乙草胺14% +甲基苯磺隆4% WP @ 750 g ha-1，苯甲草胺6% +吡嘧磺隆0.15% WP @ 9.88 kg ha-1，杂草检查作为对照。该实验采用裂图设计，有三个重复。试验田共发现杂草13种，以阔叶草和莎草为主。阴道单毛菌为最优势杂草种。研究发现，混合除草剂的施用比单一除草剂的施用能更好地控制杂草。施用14%乙草胺+ 4%甲基苯磺隆WP @ 750 g ha-1显著降低了杂草密度和生物量，是控制复杂杂草区系的最佳方法。该研究指出BR11 (Mukta)是在施用14%乙草胺+ 4%甲基苯磺隆(WP @ 750 g ha-1)时产量最高的最有潜力的水稻品种。该处理获得了最高的总收益(146010塔卡)、净收益(88699塔卡)和效益-成本比(2.55)。因此，本研究建议，采用BR11 (Mukta)混用除草剂可获得移栽安曼稻的最佳产量和最大经济效益。孟加拉国阿格龙。[j] .生物医学工程学报，2016,26(1):56-74
{"title":"Efficacy of Herbicide Mixtures for Transplanted Aman Rice in Silty Clay Loam Soil of Bangladesh","authors":"Zobayra Haque Jame, Taslima Zahan, HMM Tariq Hossain, Promita Shikha Roy, Sheikh Muhammad Masum","doi":"10.3329/baj.v26i1.69759","DOIUrl":"https://doi.org/10.3329/baj.v26i1.69759","url":null,"abstract":"Weed management plays an important role in obtaining target yield. A field experiment was carried out at the Agronomy field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, from July to December 2019 to get the most effective weed control strategy for transplanted Aman rice. The soil of the study field was silty clay loam in nature. The study consisted of two factors i.e., variety (4: Chinigura, BR11(Mukta), BRRI dhan56, and BRRI hybrid dhan6) and herbicide (4) viz., Bispyribac-sodium WP @ 150 g ha-1, Acetochlor 14% + Bensulfuron methyl 4% WP @ 750 g ha-1, Pretilachlor 6% + pyrazosulfuron 0.15% WP @ 9.88 kg ha-1, and weedy check as a control. The experiment was laid out in a split-plot design with three replications. Thirteen weed species were found in the experimental plots, mostly broadleaf and sedge. Monochoria vaginalis was the most dominant weed species. The study noticed that the application of mixed herbicides offered better weed control over single herbicide application. Application of Acetochlor 14% + Bensulfuron methyl 4% WP @ 750 g ha-1 significantly reduced weed density and biomass and was the best way of controlling complex weed flora. The study marked out BR11 (Mukta) as the most potential aman rice variety to produce the highest yields at applying Acetochlor 14% + Bensulfuron methyl 4% WP @ 750 g ha-1. This treatment gave the highest gross return (Tk. 1,46,010), net return (Tk. 88,699), and benefit-cost ratio (2.55). Therefore, the study suggests the application of mixed herbicides and BR11 (Mukta) to get the optimum yield of transplanted Aman rice and maximum economic benefit.
 Bangladesh Agron. J. 2023, 26(1): 56-74","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391650","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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