Pub Date : 2023-03-22DOI: 10.1080/03650340.2023.2189703
Yujing Hu, Yanan Zhang, Jiawei Liu, Xinhui Chen, Jie Zhang, Yuncong Yao
ABSTRACT To investigate the physiological status of plant following the application of a mixture of organic residues, nitrogen-rich meat powder and alfalfa (Medicago sativa L.) powder mixed in different proportions as fertilizers were applied to the soil of a hilly area to cultivate young walnut trees under drought and wet soil conditions, respectively. The results showed that the nitrogen-rich fertilizer treatments could significantly increase the soil water content (SWC), soil organic matter (SOM), soil organic carbon (SOC), and soil organic nitrogen (SON), total nitrogen (TN), total phosphorus (TP), total potassium (TK), available nitrogen (AN), available P (AP), available K (AK), a high soil organic carbon/nitrogen ratio under soil drought conditions. Moreover, they also significantly improved the soil nutrients contents of Ca, Mg, Fe, Mn, Cu and Zn, especially Ca and Mg in dry soil. Consequently, this nutrient-rich soil greatly promoted the plant branching and thickening with a high net leaf photosynthesis rate (Pn), water use efficiency (WUE), a low transpiration (Tr) under soil drought conditions. We proposed that high soil carbon/nitrogen ratio improved by applying nitrogen-rich fertilizers might weaken top shoot growth and regulate the plant branching and thickening of young walnut trees under deficit irrigation conditions.
{"title":"Nitrogen-rich animal and plant wastes as fertilizer improve the soil carbon/nitrogen ratio and plant branching and thickening of young walnut trees under deficit irrigation conditions","authors":"Yujing Hu, Yanan Zhang, Jiawei Liu, Xinhui Chen, Jie Zhang, Yuncong Yao","doi":"10.1080/03650340.2023.2189703","DOIUrl":"https://doi.org/10.1080/03650340.2023.2189703","url":null,"abstract":"ABSTRACT To investigate the physiological status of plant following the application of a mixture of organic residues, nitrogen-rich meat powder and alfalfa (Medicago sativa L.) powder mixed in different proportions as fertilizers were applied to the soil of a hilly area to cultivate young walnut trees under drought and wet soil conditions, respectively. The results showed that the nitrogen-rich fertilizer treatments could significantly increase the soil water content (SWC), soil organic matter (SOM), soil organic carbon (SOC), and soil organic nitrogen (SON), total nitrogen (TN), total phosphorus (TP), total potassium (TK), available nitrogen (AN), available P (AP), available K (AK), a high soil organic carbon/nitrogen ratio under soil drought conditions. Moreover, they also significantly improved the soil nutrients contents of Ca, Mg, Fe, Mn, Cu and Zn, especially Ca and Mg in dry soil. Consequently, this nutrient-rich soil greatly promoted the plant branching and thickening with a high net leaf photosynthesis rate (Pn), water use efficiency (WUE), a low transpiration (Tr) under soil drought conditions. We proposed that high soil carbon/nitrogen ratio improved by applying nitrogen-rich fertilizers might weaken top shoot growth and regulate the plant branching and thickening of young walnut trees under deficit irrigation conditions.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2966 - 2981"},"PeriodicalIF":2.4,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49131666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-12DOI: 10.1080/03650340.2023.2189243
Tho Nguyen, M. Duong
ABSTRACT Developing lime requirement (LR) methods for routine use is one of the key tasks for agronomists because such methods would provide accurate lime recommendations while saving time, labour, and cost. This paper examined the effects of testing conditions to LR and tested if a single base addition can be routinely used for LR estimates. With Acrisols from Southeastern Vietnam (0–30 cm), results showed that lime rates, equilibrium times, and shaking had great effects on LR. A lime rate [as saturated Ca(OH)2] of 0.10 × 10−3 kg CaCO3 kg soil−1 in 1:1 soil:0.01 M CaCl2, a 90-min equilibrium, and continuous shaking are the optimum conditions for LR estimates. Titration with a single base addition using the optimum conditions estimated 85.8% of LR by the reference method. The estimation rate can be as high as 97% if more prediction errors were ignored in low LR soils. Although prediction errors are likely, titration with a single base addition can be suitable for routine use on Acrisols in Southeastern Vietnam, with further testing, adjustment, and validation.
摘要开发日常使用的石灰需求量（LR）方法是农学家的关键任务之一，因为这种方法可以在节省时间、劳动力和成本的同时提供准确的石灰建议。本文研究了测试条件对LR的影响，并测试了单碱基添加是否可以常规用于LR估计。与越南东南部的农田（0-30 cm），结果表明石灰用量、平衡时间和摇动对LR有很大影响。石灰用量[饱和Ca（OH）2]为0.10 × 10−3 kg CaCO3 kg土壤−1在1:1土壤中：0.01 M CaCl2、90分钟的平衡和连续振荡是LR估计的最佳条件。在最佳条件下加入单一碱进行滴定，通过参考方法估计LR为85.8%。如果在低LR土壤中忽略更多的预测误差，估计率可能高达97%。尽管可能存在预测误差，但通过进一步的测试、调整和验证，添加单一碱的滴定法可适用于越南东南部的Acrisol的常规使用。
{"title":"Using a single base addition for lime requirement of Acrisols: a case study in Southeastern Vietnam","authors":"Tho Nguyen, M. Duong","doi":"10.1080/03650340.2023.2189243","DOIUrl":"https://doi.org/10.1080/03650340.2023.2189243","url":null,"abstract":"ABSTRACT Developing lime requirement (LR) methods for routine use is one of the key tasks for agronomists because such methods would provide accurate lime recommendations while saving time, labour, and cost. This paper examined the effects of testing conditions to LR and tested if a single base addition can be routinely used for LR estimates. With Acrisols from Southeastern Vietnam (0–30 cm), results showed that lime rates, equilibrium times, and shaking had great effects on LR. A lime rate [as saturated Ca(OH)2] of 0.10 × 10−3 kg CaCO3 kg soil−1 in 1:1 soil:0.01 M CaCl2, a 90-min equilibrium, and continuous shaking are the optimum conditions for LR estimates. Titration with a single base addition using the optimum conditions estimated 85.8% of LR by the reference method. The estimation rate can be as high as 97% if more prediction errors were ignored in low LR soils. Although prediction errors are likely, titration with a single base addition can be suitable for routine use on Acrisols in Southeastern Vietnam, with further testing, adjustment, and validation.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2956 - 2965"},"PeriodicalIF":2.4,"publicationDate":"2023-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44348191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-09DOI: 10.1080/03650340.2023.2173741
G. Runion, S. Prior, Mary K. Durstock, A. Sanz‐Saez, A. Price
ABSTRACT Repeated application of herbicides has led to herbicide-resistant weed populations. Elevated CO2 often increases weed growth, exacerbating problems including impacts on crop yield and weed control. How rising CO2 affects herbicide-resistant weeds remains largely unknown. Palmer amaranth (Amaranthus palmeri) populations resistant to or susceptible to glyphosate were exposed to ambient or elevated (ambient +200 μmol mol−1) concentrations of CO2 in open-top chambers. Two weeks after CO2 exposure, each population was sprayed with glyphosate at 0, 0.5×, 1.0×, or 1.5× the label rate. Afterwards, CO2 exposure continued for an additional two weeks when visual herbicide injury and leaf gas exchange were assessed. Plants were harvested for determination of treatment effects on growth. Elevated CO2 had little effect on most variables except for decreasing stomatal conductance (~25.5%) and increasing water use efficiency (~49.2%). Glyphosate resistant plants showed decreased height (9.8%) and damage (~56.4%) and increased root dry weight (12.1%), photosynthesis (~41.2%), stomatal conductance (~63.3%), and water use efficiency (~32.0%). In general, increasing rates of glyphosate decreased growth and gas exchange variables, which was frequently only seen in the susceptible ecotype. Data suggest that rising atmospheric CO2 is unlikely to affect Palmer amaranth, including control of glyphosate-resistant populations.
{"title":"Effects of elevated CO2 on the response of glyphosate resistant and susceptible Palmer amaranth (Amaranthus palmeri S. Wats.) to varying rates of glyphosate","authors":"G. Runion, S. Prior, Mary K. Durstock, A. Sanz‐Saez, A. Price","doi":"10.1080/03650340.2023.2173741","DOIUrl":"https://doi.org/10.1080/03650340.2023.2173741","url":null,"abstract":"ABSTRACT Repeated application of herbicides has led to herbicide-resistant weed populations. Elevated CO2 often increases weed growth, exacerbating problems including impacts on crop yield and weed control. How rising CO2 affects herbicide-resistant weeds remains largely unknown. Palmer amaranth (Amaranthus palmeri) populations resistant to or susceptible to glyphosate were exposed to ambient or elevated (ambient +200 μmol mol−1) concentrations of CO2 in open-top chambers. Two weeks after CO2 exposure, each population was sprayed with glyphosate at 0, 0.5×, 1.0×, or 1.5× the label rate. Afterwards, CO2 exposure continued for an additional two weeks when visual herbicide injury and leaf gas exchange were assessed. Plants were harvested for determination of treatment effects on growth. Elevated CO2 had little effect on most variables except for decreasing stomatal conductance (~25.5%) and increasing water use efficiency (~49.2%). Glyphosate resistant plants showed decreased height (9.8%) and damage (~56.4%) and increased root dry weight (12.1%), photosynthesis (~41.2%), stomatal conductance (~63.3%), and water use efficiency (~32.0%). In general, increasing rates of glyphosate decreased growth and gas exchange variables, which was frequently only seen in the susceptible ecotype. Data suggest that rising atmospheric CO2 is unlikely to affect Palmer amaranth, including control of glyphosate-resistant populations.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2739 - 2752"},"PeriodicalIF":2.4,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45879782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-05DOI: 10.1080/03650340.2023.2186404
Cuiping Meng, M. Wu, Liyu Yang, Haiyan Liang, Qi Wu, Yi Li, Pu Shen
ABSTRACT Peanuts (Arachis hypogaea L.) is an important oil and nitrogen (N) fixing crop. Urease inhibitors (UIs) and nitrification inhibitors (Nis) can mitigate the release of N and reduce the harmful effects of excessive N concentrations. However, the effect of these inhibitors on the soil nutrient-microbial activity-plant growth system is unknown in peanut. The purpose of this study was to investigate the effects and mechanism of N-(n-butyl) thiophosphoric triamide (NBPT), 3,4-dimethylpyrazole phosphate (DMPP) and sulfur-coated urea (SCU) on peanut. The results showed that comparing with urea alone, adding NBPT + DMPP inhibited the urea hydrolysis better and decreased the concentration of NH4 +-N + NO3 −-N by 20.8% in soil. Therefore, it increased the net photosynthetic rate, promoted the development of roots even the absorption of N by peanut, with N use efficiency (NUE) up to 20.8%. The effect of NBPT + DMPP on microorganism was better than that of NBPT alone, which considerably impacted the structure and abundances of aonia oxidizing bacteria (AOB) but not ammonia-oxidizing archaea (AOA). Specifically, g_Nitrosospira and g_Nitrosomonas decreased by 46.9% and 2.2% respectively, and g(c) Betaproteobacteria increased. Furthermore, when combined with SCU on this basis, the overall effect was clearer.
{"title":"Rational utilization of urease and nitrification inhibitors improve the ammonia-oxidizing bacteria community, nitrogen use efficiency and peanut growth","authors":"Cuiping Meng, M. Wu, Liyu Yang, Haiyan Liang, Qi Wu, Yi Li, Pu Shen","doi":"10.1080/03650340.2023.2186404","DOIUrl":"https://doi.org/10.1080/03650340.2023.2186404","url":null,"abstract":"ABSTRACT Peanuts (Arachis hypogaea L.) is an important oil and nitrogen (N) fixing crop. Urease inhibitors (UIs) and nitrification inhibitors (Nis) can mitigate the release of N and reduce the harmful effects of excessive N concentrations. However, the effect of these inhibitors on the soil nutrient-microbial activity-plant growth system is unknown in peanut. The purpose of this study was to investigate the effects and mechanism of N-(n-butyl) thiophosphoric triamide (NBPT), 3,4-dimethylpyrazole phosphate (DMPP) and sulfur-coated urea (SCU) on peanut. The results showed that comparing with urea alone, adding NBPT + DMPP inhibited the urea hydrolysis better and decreased the concentration of NH4 +-N + NO3 −-N by 20.8% in soil. Therefore, it increased the net photosynthetic rate, promoted the development of roots even the absorption of N by peanut, with N use efficiency (NUE) up to 20.8%. The effect of NBPT + DMPP on microorganism was better than that of NBPT alone, which considerably impacted the structure and abundances of aonia oxidizing bacteria (AOB) but not ammonia-oxidizing archaea (AOA). Specifically, g_Nitrosospira and g_Nitrosomonas decreased by 46.9% and 2.2% respectively, and g(c) Betaproteobacteria increased. Furthermore, when combined with SCU on this basis, the overall effect was clearer.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2938 - 2955"},"PeriodicalIF":2.4,"publicationDate":"2023-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42164224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-27DOI: 10.1080/03650340.2023.2180799
Danmei Chen, Zhimo Li, Chun-Pin Huang, Hongjun Yang
ABSTRACT The self-digestive solution (SDS) of the biocontrol bacterium Lysobacter enzymogenes LE16 shows strong antagonistic activities against multiple soil-borne phytopathogens but the positive evidence of this bacterium against plant foliar disease is still scanty. Thus, laboratory, greenhouse, and field experiments were carried out to estimate the efficacies of SDS, S-SDS (stored at room temperature for 12 months), and H-SDS (heated at 100°C for 30 min) against plant powdery mildew. This bacterium produced hydrolases (phosphatase, protease, lysozyme, chitinase, and β-1,3-glucanase) that degrade pathogen cell components and siderophores that compete for iron with phytopathogens. The top five antimicrobial metabolites identified in SDS were pyroglutamic acid, deoxycytidine, pyrrole-2-carboxylic acid, 13-oxo-9,11-tridecadienoic acid, and 3’-amino-3’-deoxythimidine. Among them, pyroglutamic acid may play a vital role in powdery mildew control. As a result, SDS, S-SDS, and H-SDS strongly inhibited the conidial germination of Erysiphe cichoracearum and Sphaerotheca fuliginea. The application of SDS significantly increased the activity of antioxidant enzymes in crop leaves and effectively controlled tobacco and cucumber powdery mildew in the greenhouse and the field. Therefore, L. enzymogenes LE16 can effectively control powdery mildew. The underlying mechanisms may be attributed to the induction of plant systemic resistance and the production of antifungal substances.
{"title":"Self-digestive solution of Lysobacter enzymogenes LE16 as a biofungicide to control plant powdery mildew","authors":"Danmei Chen, Zhimo Li, Chun-Pin Huang, Hongjun Yang","doi":"10.1080/03650340.2023.2180799","DOIUrl":"https://doi.org/10.1080/03650340.2023.2180799","url":null,"abstract":"ABSTRACT The self-digestive solution (SDS) of the biocontrol bacterium Lysobacter enzymogenes LE16 shows strong antagonistic activities against multiple soil-borne phytopathogens but the positive evidence of this bacterium against plant foliar disease is still scanty. Thus, laboratory, greenhouse, and field experiments were carried out to estimate the efficacies of SDS, S-SDS (stored at room temperature for 12 months), and H-SDS (heated at 100°C for 30 min) against plant powdery mildew. This bacterium produced hydrolases (phosphatase, protease, lysozyme, chitinase, and β-1,3-glucanase) that degrade pathogen cell components and siderophores that compete for iron with phytopathogens. The top five antimicrobial metabolites identified in SDS were pyroglutamic acid, deoxycytidine, pyrrole-2-carboxylic acid, 13-oxo-9,11-tridecadienoic acid, and 3’-amino-3’-deoxythimidine. Among them, pyroglutamic acid may play a vital role in powdery mildew control. As a result, SDS, S-SDS, and H-SDS strongly inhibited the conidial germination of Erysiphe cichoracearum and Sphaerotheca fuliginea. The application of SDS significantly increased the activity of antioxidant enzymes in crop leaves and effectively controlled tobacco and cucumber powdery mildew in the greenhouse and the field. Therefore, L. enzymogenes LE16 can effectively control powdery mildew. The underlying mechanisms may be attributed to the induction of plant systemic resistance and the production of antifungal substances.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2898 - 2910"},"PeriodicalIF":2.4,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42844975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-27DOI: 10.1080/03650340.2023.2184807
Fernando Marcos Brignoli, Eder Junior de Oliveira Zampar, João Henrique Vieira de Almeida, Bruno Maia Abdo Rahmen Cassim, T. T. Inoue, M. A. Batista
ABSTRACT The yield gain of soybean inoculated with Bradyrhizobium spp. or co-inoculated with Bradyrhizobium spp. and Azospirillum brasilense is variable. Inoculants can be applied in the sowing furrow or via seed treatment. There is a gap in our understanding of the efficacy of different inoculation methods. This study aimed to assess the agronomic efficiency of soybean inoculated and co-inoculated with Bradyrhizobium spp. and A. brasilense by different methods. The study was conducted in Paraná State, Brazil, in two seasons. Five treatments were tested: control; seed treatment with Bradyrhizobium spp. (SBr), seed treatment with Bradyrhizobium spp. + A. brasilense (SBr+Az), in-furrow treatment with Bradyrhizobium spp. (FBr), and in-furrow treatment with Bradyrhizobium spp. + A. brasilense (FBr+Az). Shoot dry weight, grain nitrogen content and grain yield were lower in 2018/19. In 2017/18, FBr+Az increased nodule number and dry weight compared with SBr. FBr+Az promoted a 47% increase in pods per plant compared with the control in both seasons. Regardless of season, grain nitrogen content was higher with FBr+Az (mean relative increase of 27%). FBr+Az was superior to SBr+Az in 2017/18, with a 12% increase in yield. Inoculation and co-inoculation improve morphological traits and soybean yield. In-furrow inoculation is more efficient than seed treatment.
{"title":"Effect of different methods of inoculation and co-inoculation of Bradyrhizobium spp. and Azospirillum brasilense on soybean agronomic performance in fields with a history of inoculation","authors":"Fernando Marcos Brignoli, Eder Junior de Oliveira Zampar, João Henrique Vieira de Almeida, Bruno Maia Abdo Rahmen Cassim, T. T. Inoue, M. A. Batista","doi":"10.1080/03650340.2023.2184807","DOIUrl":"https://doi.org/10.1080/03650340.2023.2184807","url":null,"abstract":"ABSTRACT The yield gain of soybean inoculated with Bradyrhizobium spp. or co-inoculated with Bradyrhizobium spp. and Azospirillum brasilense is variable. Inoculants can be applied in the sowing furrow or via seed treatment. There is a gap in our understanding of the efficacy of different inoculation methods. This study aimed to assess the agronomic efficiency of soybean inoculated and co-inoculated with Bradyrhizobium spp. and A. brasilense by different methods. The study was conducted in Paraná State, Brazil, in two seasons. Five treatments were tested: control; seed treatment with Bradyrhizobium spp. (SBr), seed treatment with Bradyrhizobium spp. + A. brasilense (SBr+Az), in-furrow treatment with Bradyrhizobium spp. (FBr), and in-furrow treatment with Bradyrhizobium spp. + A. brasilense (FBr+Az). Shoot dry weight, grain nitrogen content and grain yield were lower in 2018/19. In 2017/18, FBr+Az increased nodule number and dry weight compared with SBr. FBr+Az promoted a 47% increase in pods per plant compared with the control in both seasons. Regardless of season, grain nitrogen content was higher with FBr+Az (mean relative increase of 27%). FBr+Az was superior to SBr+Az in 2017/18, with a 12% increase in yield. Inoculation and co-inoculation improve morphological traits and soybean yield. In-furrow inoculation is more efficient than seed treatment.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2925 - 2937"},"PeriodicalIF":2.4,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48755590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-25DOI: 10.1080/03650340.2023.2180146
Kecheng Zhang, Q. Cao, Xiao Song, Bing Han, Yu Zhang, Xiaojun Liu, Yan Zhu, W. Cao, Deli Chen, Yongchao Tian
ABSTRACT Nitrogen (N) fertilizer management plays a crucial role in high-yield rice production. To choose a well-performing rice N nutrient diagnosis indicator for developing rice production management strategies, this research conducted five field experiments under various N treatments. The results showed that machine learning and stepwise multiple linear regression suggested a strong relationship between vegetation indexes and agronomic indicators (0.70 > R2 > 0.51). A strong correlation was obtained between red-edge based vegetation indexes and agronomic indicators (R2 > 0.40). Additionally, the all-subset regression method results demonstrated that the red-edge basis vegetation indexes were generally applied during different vegetation index combinations. The red-edge basis vegetation indexes reached an approximately 40% contribution in nitrogen nutrient index prediction and an approximately 48% contribution in leaf area index monitoring. Furthermore, this study combined the normalized difference red-edge (NDRE) basis dynamic model to calculate the N dose, which ranged from 106 to 134 kg per hectare in large-scale N management according to the NDRE from Sentinel-2B images, a decrease of approximately 46 kg N ha−1 fertilizer compared with farmers’ practices. Nevertheless, more refinements are needed to ensure that this strategy can be applied to farmers’ yield- and income-enhancing production.
{"title":"Remote sensing approaches for crop nutrition diagnosis and recommendations for nitrogen fertilizers in rice at canopy level","authors":"Kecheng Zhang, Q. Cao, Xiao Song, Bing Han, Yu Zhang, Xiaojun Liu, Yan Zhu, W. Cao, Deli Chen, Yongchao Tian","doi":"10.1080/03650340.2023.2180146","DOIUrl":"https://doi.org/10.1080/03650340.2023.2180146","url":null,"abstract":"ABSTRACT Nitrogen (N) fertilizer management plays a crucial role in high-yield rice production. To choose a well-performing rice N nutrient diagnosis indicator for developing rice production management strategies, this research conducted five field experiments under various N treatments. The results showed that machine learning and stepwise multiple linear regression suggested a strong relationship between vegetation indexes and agronomic indicators (0.70 > R2 > 0.51). A strong correlation was obtained between red-edge based vegetation indexes and agronomic indicators (R2 > 0.40). Additionally, the all-subset regression method results demonstrated that the red-edge basis vegetation indexes were generally applied during different vegetation index combinations. The red-edge basis vegetation indexes reached an approximately 40% contribution in nitrogen nutrient index prediction and an approximately 48% contribution in leaf area index monitoring. Furthermore, this study combined the normalized difference red-edge (NDRE) basis dynamic model to calculate the N dose, which ranged from 106 to 134 kg per hectare in large-scale N management according to the NDRE from Sentinel-2B images, a decrease of approximately 46 kg N ha−1 fertilizer compared with farmers’ practices. Nevertheless, more refinements are needed to ensure that this strategy can be applied to farmers’ yield- and income-enhancing production.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2878 - 2897"},"PeriodicalIF":2.4,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46811647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT To improve the yield and water-nitrogen (N) use efficiency of summer maize, a two-year field experiment with four irrigation soil layers (0–10, 0–20, 0–30, and 0–40 cm, denoted as W10, W20, W30, and W40, respectively) and three N applications (180, 240, and 300 kg ha–1, denoted as N180, N240, and N300, respectively) was performed using micro-sprinkling irrigation system in 2018 and 2019. The interaction between water and N application significantly affects dry matter accumulation (DM). Under the same N application, the grain yield of W10 was significantly lower than that of W40. The irrigation amount and evapotranspiration for W20N180 and W20N240 significantly decreased by 47.18%–52.31% and 12.32%–12.68%, respectively, over that of W40N300, and water-use-efficiency (WUE) significantly increased by 7.75%–12.47%. Compared with N180, the N partial factor productivity of N240 and N300 decreased by 21.02%~22.04% and 37.12%~38.24%, respectively; with no significant difference in yield. Grain yield was significantly positively correlated with leaf area index at tasseling, grains per ear, DM at maturity, and evapotranspiration. Overall, suitable irrigation (W20) and N application (180–240 kg ha–1) can achieve higher grain yield and WUE for summer maize in the Huang-Huai-Hai Plain of China.
摘要为了提高夏玉米产量和水分氮利用效率，2018年和2019年，使用微喷灌系统对四个灌溉土层（0-10、0-20、0-30和0-40 cm，分别表示为W10、W20、W30和W40）和三种氮施用（180、240和300 kg ha–1，分别表示N180、N240和N300）进行了为期两年的田间试验。水分和施氮之间的相互作用显著影响干物质积累。在相同施氮条件下，W10的籽粒产量显著低于W40。W20N180和W20N240的灌溉量和蒸散量分别比W40N300显著下降47.18%～52.31%和12.32%～12.68%，水分利用效率显著提高7.75%～12.47%；产量差异不显著。籽粒产量与穗期叶面积指数、穗粒数、成熟期DM和蒸散量呈正相关。总的来说，适当的灌溉（W20）和施氮（180–240 kg ha–1）可以提高黄淮平原夏玉米的粮食产量和水分利用率。
{"title":"Integrated water and nitrogen application increases summer maize (Zea mays L.) yield and water/nitrogen use efficiency under micro-sprinkling irrigation conditions","authors":"Xiangyun Wu, Dong Wang, Chitao Sun, X. Cai, Yanpeng Bi, Junpeng Zhang, X. Wang","doi":"10.1080/03650340.2023.2182880","DOIUrl":"https://doi.org/10.1080/03650340.2023.2182880","url":null,"abstract":"ABSTRACT To improve the yield and water-nitrogen (N) use efficiency of summer maize, a two-year field experiment with four irrigation soil layers (0–10, 0–20, 0–30, and 0–40 cm, denoted as W10, W20, W30, and W40, respectively) and three N applications (180, 240, and 300 kg ha–1, denoted as N180, N240, and N300, respectively) was performed using micro-sprinkling irrigation system in 2018 and 2019. The interaction between water and N application significantly affects dry matter accumulation (DM). Under the same N application, the grain yield of W10 was significantly lower than that of W40. The irrigation amount and evapotranspiration for W20N180 and W20N240 significantly decreased by 47.18%–52.31% and 12.32%–12.68%, respectively, over that of W40N300, and water-use-efficiency (WUE) significantly increased by 7.75%–12.47%. Compared with N180, the N partial factor productivity of N240 and N300 decreased by 21.02%~22.04% and 37.12%~38.24%, respectively; with no significant difference in yield. Grain yield was significantly positively correlated with leaf area index at tasseling, grains per ear, DM at maturity, and evapotranspiration. Overall, suitable irrigation (W20) and N application (180–240 kg ha–1) can achieve higher grain yield and WUE for summer maize in the Huang-Huai-Hai Plain of China.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2911 - 2924"},"PeriodicalIF":2.4,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46031418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-23DOI: 10.1080/03650340.2023.2173742
Z. Barhoumi, A. Atia, Amjad Hussain, Mariem Maatallah, Ali Alalmaie, Khalil Ibrahim Alaskri, Abdurahman Mohaya Assiri
ABSTRACT The grey mangrove, Avicennia marina, grows in coastal zones in which salinity is frequently associated with iron deficiency. Its response to these combined stresses has not yet explored. The current study aims to assess the physiological and biochemical effects of iron deficiency (ID), salt stress (SS) and their combination (ID + SS) on A. marina seedlings. Iron deficiency reduced growth at non-saline treated plants by 27% while its deleterious effect was mitigated by the supply of 600 mM NaCl, mainly through the increase of photosynthetic pigment contents, iron accumulation in leaves, and intrinsic water use efficiency (iWUE), and the maintain of iron use efficiency (FeUE). Iron deficiency restricted iron accumulation in leaves (31%), iron absorption efficiency (FeAE) (38%), photosynthetic activity and pigment contents, and enhanced FeUE (48%) at saline treated plants. Otherwise, salinity enhanced growth (47%), root volume (20%), Fe accumulation in leaves (8%), and pigment contents at Fe-deficient plants. However, it reduced their FeAE (18%), transpiration rate (77%) and stomatal conductance (86%). Equally, it increased Na and Cl accumulation, the net photosynthetic assimilation rate and iWUE at Fe-deficient. Interestingly, the combined stresses had no additive effects and stressed plants (ID +SS) had comparable biomass to that of the control.
{"title":"Effects of salinity and iron deficiency on growth and physiological attributes of Avicennia marina (Forssk.) Vierh","authors":"Z. Barhoumi, A. Atia, Amjad Hussain, Mariem Maatallah, Ali Alalmaie, Khalil Ibrahim Alaskri, Abdurahman Mohaya Assiri","doi":"10.1080/03650340.2023.2173742","DOIUrl":"https://doi.org/10.1080/03650340.2023.2173742","url":null,"abstract":"ABSTRACT The grey mangrove, Avicennia marina, grows in coastal zones in which salinity is frequently associated with iron deficiency. Its response to these combined stresses has not yet explored. The current study aims to assess the physiological and biochemical effects of iron deficiency (ID), salt stress (SS) and their combination (ID + SS) on A. marina seedlings. Iron deficiency reduced growth at non-saline treated plants by 27% while its deleterious effect was mitigated by the supply of 600 mM NaCl, mainly through the increase of photosynthetic pigment contents, iron accumulation in leaves, and intrinsic water use efficiency (iWUE), and the maintain of iron use efficiency (FeUE). Iron deficiency restricted iron accumulation in leaves (31%), iron absorption efficiency (FeAE) (38%), photosynthetic activity and pigment contents, and enhanced FeUE (48%) at saline treated plants. Otherwise, salinity enhanced growth (47%), root volume (20%), Fe accumulation in leaves (8%), and pigment contents at Fe-deficient plants. However, it reduced their FeAE (18%), transpiration rate (77%) and stomatal conductance (86%). Equally, it increased Na and Cl accumulation, the net photosynthetic assimilation rate and iWUE at Fe-deficient. Interestingly, the combined stresses had no additive effects and stressed plants (ID +SS) had comparable biomass to that of the control.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2753 - 2766"},"PeriodicalIF":2.4,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47889937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-22DOI: 10.1080/03650340.2023.2179620
B. Touchette, Daniel S. Cox
ABSTRACT Tomatoes are among the most widely grown vegetable crop, with more than 5-million hectares of land dedicated to its cultivation. To enhance production, many growers use conventional fertilizers which also contribute to non-point source pollution. While there are a variety of methods used to administer fertilizers to crops, some require expensive equipment, are labor intensive, or apply fertilizers not efficiently used by plants. This study considered an alternative approach that delivered controlled-released fertilizers to tomatoes using gelatin capsules; wherein both seed and fertilizer were planted together as a single unit. The objectives were to determine if seed encapsulation altered seedling performance, while also considering the possible use of encapsulation to deliver controlled-release fertilizers. Although seed vigor tests suggest gelatin can diminish seedling performance, seed encapsulation had minimal impact on seedling emergence when planted in soils. Capsule treatments (without fertilizers) were taller than controls, and the addition of fertilizers improve plant performance, with higher fertilizer content fostering greater growth. The results suggest that seed encapsulation may be an effective way to deliver fertilizers to crop plants, and that the combination of capsules and controlled-release fertilizer could possibly lead to a reduction in the quantity of fertilizers necessary for tomato cultivation.
{"title":"Enhanced plant performance in tomato (Lycopersicon esculentum) through seed encapsulation with controlled-release fertilizers","authors":"B. Touchette, Daniel S. Cox","doi":"10.1080/03650340.2023.2179620","DOIUrl":"https://doi.org/10.1080/03650340.2023.2179620","url":null,"abstract":"ABSTRACT Tomatoes are among the most widely grown vegetable crop, with more than 5-million hectares of land dedicated to its cultivation. To enhance production, many growers use conventional fertilizers which also contribute to non-point source pollution. While there are a variety of methods used to administer fertilizers to crops, some require expensive equipment, are labor intensive, or apply fertilizers not efficiently used by plants. This study considered an alternative approach that delivered controlled-released fertilizers to tomatoes using gelatin capsules; wherein both seed and fertilizer were planted together as a single unit. The objectives were to determine if seed encapsulation altered seedling performance, while also considering the possible use of encapsulation to deliver controlled-release fertilizers. Although seed vigor tests suggest gelatin can diminish seedling performance, seed encapsulation had minimal impact on seedling emergence when planted in soils. Capsule treatments (without fertilizers) were taller than controls, and the addition of fertilizers improve plant performance, with higher fertilizer content fostering greater growth. The results suggest that seed encapsulation may be an effective way to deliver fertilizers to crop plants, and that the combination of capsules and controlled-release fertilizer could possibly lead to a reduction in the quantity of fertilizers necessary for tomato cultivation.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":"69 1","pages":"2862 - 2877"},"PeriodicalIF":2.4,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47332634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：