The Experts below are selected from a list of 33375 Experts worldwide ranked by ideXlab platform
Edward Olale - One of the best experts on this subject based on the ideXlab platform.
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Crop yield response to economic site and climatic variables
Climatic Change, 2010Co-Authors: Juan H Cabas, Alfons Weersink, Edward OlaleAbstract:This paper examines the effects of climatic and non-climatic factors on the mean and variance of corn, soybean and winter wheat yield in southwestern Ontario, Canada over a period of 26 years. Average Crop Yields Increase at a decreasing rate with the quantity of inputs used, and decrease with the area planted to the Crop. Climate variables have a major impact on mean yield with the length of the growing season being the primary determinant across all three Crops. Increases in the variability of temperature and precipitation decrease mean yield and Increase its variance. Yield variance is poorly explained by both seasonal and monthly climate variable models. Projections of future climate change suggest that average Crop yield will Increase with warmer temperatures and a longer growing season which is only partially offset by forecast Increases in the variability of temperature and rainfall. The projections would also depend on future technological developments, which have generated significant Increases in yield over time despite changing annual weather conditions.
Xiangping Wang - One of the best experts on this subject based on the ideXlab platform.
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biochar and fulvic acid amendments mitigate negative effects of coastal saline soil and improve Crop Yields in a three year field trial
Scientific Reports, 2020Co-Authors: Yunpeng Sun, Jingsong Yang, Rongjiang Yao, Xiaobing Chen, Xiangping WangAbstract:China with large area of land planted with Crops are suffering secondary salinization in coastal area for the lack of fresh water and saltwater intrusion to the groundwater. The purpose of this study was to investigate the effects of biochar (BC) and fulvic acid (FA) on the amelioration of coastal saline soil and their impact on Crop Yields under maize-barley rotation system. A three year field experiment was conducted in a saline soil on a farm in coastal area of east Jiangsu Province, China. A maize-barley rotation system had been carried out for ten years with local conventional management before the experiment. The saline soil was amended with BC at rates of 0, 7.5 t ha−1 (BC1), 15 t ha−1 (BC2) and 30 t ha−1 (BC3) alone or combined with fulvic acid (1.5 t ha−1) compared with control. Fertilizers were applied under normal planting strategies. The BC was added only once during the four growing seasons, and the FA was applied before each sowing. Soil salinity changed significantly during the three year field experiment. This was mainly due to the great quantity of rain during the period of maize cultivation. Although Na+, Cl− and SO42− in BC and /or FA treatments significantly decreased, the pH value Increased up to 9.0 as the CO32− + HCO3−content Increased. Total organic carbon (TOC) and phosphorus (TP) responded positively to biochar addition rate. BC applied with appropriate rate at 15 t ha−1 (BC2) in combination with FA showed optimal effects on soil salinity amelioration, soil physics properties regulation, soil nutrition improvement and Crop Yields Increase. The TOC and TP was 5.2 g kg−1 and 507 mg kg−1 in BC2 + FA treatment, which were lower than BC3 and BC3 + FA treatments. However, the highest total grain yield was obtained in the BC2 + FA treatment, and the total yield was Increased by 62.9% over the CK. This study emphasizes that using combined organic amendment of BC with FA for profitable and sustainable use of salt-affected soils would be practicable.
Juan H Cabas - One of the best experts on this subject based on the ideXlab platform.
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Crop yield response to economic site and climatic variables
Climatic Change, 2010Co-Authors: Juan H Cabas, Alfons Weersink, Edward OlaleAbstract:This paper examines the effects of climatic and non-climatic factors on the mean and variance of corn, soybean and winter wheat yield in southwestern Ontario, Canada over a period of 26 years. Average Crop Yields Increase at a decreasing rate with the quantity of inputs used, and decrease with the area planted to the Crop. Climate variables have a major impact on mean yield with the length of the growing season being the primary determinant across all three Crops. Increases in the variability of temperature and precipitation decrease mean yield and Increase its variance. Yield variance is poorly explained by both seasonal and monthly climate variable models. Projections of future climate change suggest that average Crop yield will Increase with warmer temperatures and a longer growing season which is only partially offset by forecast Increases in the variability of temperature and rainfall. The projections would also depend on future technological developments, which have generated significant Increases in yield over time despite changing annual weather conditions.
Rana Munns - One of the best experts on this subject based on the ideXlab platform.
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using membrane transporters to improve Crops for sustainable food production
Nature, 2013Co-Authors: Julian I Schroeder, Emmanuel Delhaize, Wolf B Frommer, Mary Lou Guerinot, Maria J Harrison, Luis Herreraestrella, Tomoaki Horie, Leon V Kochian, Rana MunnsAbstract:This Perspective discusses the emerging advances in plant membrane transporters, which can be used to improve Crop Yields, nutritional value, and environmental stress resistance. Transport proteins embedded in the cell membranes are key targets for improving the efficiency with which plants take up and use water and nutrients. In this Perspective article, Julian Schroeder et al. discuss recent work on the development of specialized plant membrane transporters that can enhance Crop Yields, Increase nutritional value and boost resistance to stresses including pathogens. Promising lines of development include aluminium-tolerant cereals that thrive in acid soil, salt-tolerant varieties that grow in soils affected by salinity or sodium toxicity, and plants containing high levels of the iron and zinc micronutrients often scarce in predominantly plant-based diets in developing countries. With the global population predicted to grow by at least 25 per cent by 2050, the need for sustainable production of nutritious foods is critical for human and environmental health. Recent advances show that specialized plant membrane transporters can be used to enhance Yields of staple Crops, Increase nutrient content and Increase resistance to key stresses, including salinity, pathogens and aluminium toxicity, which in turn could expand available arable land.
Yunpeng Sun - One of the best experts on this subject based on the ideXlab platform.
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biochar and fulvic acid amendments mitigate negative effects of coastal saline soil and improve Crop Yields in a three year field trial
Scientific Reports, 2020Co-Authors: Yunpeng Sun, Jingsong Yang, Rongjiang Yao, Xiaobing Chen, Xiangping WangAbstract:China with large area of land planted with Crops are suffering secondary salinization in coastal area for the lack of fresh water and saltwater intrusion to the groundwater. The purpose of this study was to investigate the effects of biochar (BC) and fulvic acid (FA) on the amelioration of coastal saline soil and their impact on Crop Yields under maize-barley rotation system. A three year field experiment was conducted in a saline soil on a farm in coastal area of east Jiangsu Province, China. A maize-barley rotation system had been carried out for ten years with local conventional management before the experiment. The saline soil was amended with BC at rates of 0, 7.5 t ha−1 (BC1), 15 t ha−1 (BC2) and 30 t ha−1 (BC3) alone or combined with fulvic acid (1.5 t ha−1) compared with control. Fertilizers were applied under normal planting strategies. The BC was added only once during the four growing seasons, and the FA was applied before each sowing. Soil salinity changed significantly during the three year field experiment. This was mainly due to the great quantity of rain during the period of maize cultivation. Although Na+, Cl− and SO42− in BC and /or FA treatments significantly decreased, the pH value Increased up to 9.0 as the CO32− + HCO3−content Increased. Total organic carbon (TOC) and phosphorus (TP) responded positively to biochar addition rate. BC applied with appropriate rate at 15 t ha−1 (BC2) in combination with FA showed optimal effects on soil salinity amelioration, soil physics properties regulation, soil nutrition improvement and Crop Yields Increase. The TOC and TP was 5.2 g kg−1 and 507 mg kg−1 in BC2 + FA treatment, which were lower than BC3 and BC3 + FA treatments. However, the highest total grain yield was obtained in the BC2 + FA treatment, and the total yield was Increased by 62.9% over the CK. This study emphasizes that using combined organic amendment of BC with FA for profitable and sustainable use of salt-affected soils would be practicable.