Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits
In drylands, optimized management of fertilization based on precipitation is very important to reduce fertilizer inputs and environmental risks and improve crop yield and benefits. Based on a four-year winter wheat experiment with two treatments (FP, farmers’ practices; NE, Nutrient Expert system re...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377423004948 |
| _version_ | 1797365619519127552 |
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| author | Wenjie Yang Yanhang Li Bingli Jia Lei Liu Aijing Yuan Jinshan Liu Weihong Qiu |
| author_facet | Wenjie Yang Yanhang Li Bingli Jia Lei Liu Aijing Yuan Jinshan Liu Weihong Qiu |
| author_sort | Wenjie Yang |
| collection | DOAJ |
| description | In drylands, optimized management of fertilization based on precipitation is very important to reduce fertilizer inputs and environmental risks and improve crop yield and benefits. Based on a four-year winter wheat experiment with two treatments (FP, farmers’ practices; NE, Nutrient Expert system recommendation) at nine counties of the Chinese Loess Plateau, we determined the effects of NE on wheat yield, environmental risks, and economic benefits under three precipitation year types (dry, normal, and wet) and recommended optimized N fertilization. The results showed that the NE treatment reduced N and P fertilizer input rates by 21.7% and 50.0%, respectively, Nr losses by 30.1% and GHG emissions by 21.6%, but it did not affect wheat grain yield compared to the FP treatment. There were no significant differences in N and P input rates among the three precipitation year types, but higher grain yield and partial factor productivity of N and P fertilizers were found in wet years in the NE treatment. Additionally, soil nitrate N residues in the 0–100 cm soil layers were ordered in wet years < normal years < dry years. Based on the NE system, the optimized N fertilization method could further reduce the N fertilizer rate by 16.6% and 62.5%, Nr losses by 20% and 68%, and GHG emissions by 1.7% and 47.8% in normal and dry years, respectively, but could increase economic benefits by 3.3% and 5.6%, suggesting that optimized fertilization based on fallow season precipitation can result in multiple benefits for agriculture and the environment. |
| first_indexed | 2024-03-08T16:52:30Z |
| format | Article |
| id | doaj.art-f113c07dc5ce428b8d49866bdf57c9fc |
| institution | Directory Open Access Journal |
| issn | 1873-2283 |
| language | English |
| last_indexed | 2024-03-08T16:52:30Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj.art-f113c07dc5ce428b8d49866bdf57c9fc2024-01-05T04:22:46ZengElsevierAgricultural Water Management1873-22832024-02-01291108629Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefitsWenjie Yang0Yanhang Li1Bingli Jia2Lei Liu3Aijing Yuan4Jinshan Liu5Weihong Qiu6Key Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaKey Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaKey Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaKey Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaKey Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaCorresponding authors.; Key Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaCorresponding authors.; Key Laboratory of Plant Nutrition and Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs/College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaIn drylands, optimized management of fertilization based on precipitation is very important to reduce fertilizer inputs and environmental risks and improve crop yield and benefits. Based on a four-year winter wheat experiment with two treatments (FP, farmers’ practices; NE, Nutrient Expert system recommendation) at nine counties of the Chinese Loess Plateau, we determined the effects of NE on wheat yield, environmental risks, and economic benefits under three precipitation year types (dry, normal, and wet) and recommended optimized N fertilization. The results showed that the NE treatment reduced N and P fertilizer input rates by 21.7% and 50.0%, respectively, Nr losses by 30.1% and GHG emissions by 21.6%, but it did not affect wheat grain yield compared to the FP treatment. There were no significant differences in N and P input rates among the three precipitation year types, but higher grain yield and partial factor productivity of N and P fertilizers were found in wet years in the NE treatment. Additionally, soil nitrate N residues in the 0–100 cm soil layers were ordered in wet years < normal years < dry years. Based on the NE system, the optimized N fertilization method could further reduce the N fertilizer rate by 16.6% and 62.5%, Nr losses by 20% and 68%, and GHG emissions by 1.7% and 47.8% in normal and dry years, respectively, but could increase economic benefits by 3.3% and 5.6%, suggesting that optimized fertilization based on fallow season precipitation can result in multiple benefits for agriculture and the environment.http://www.sciencedirect.com/science/article/pii/S0378377423004948Optimized fertilizationDryland wheatFallow-season rainfallEnvironmental impactEconomic income |
| spellingShingle | Wenjie Yang Yanhang Li Bingli Jia Lei Liu Aijing Yuan Jinshan Liu Weihong Qiu Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits Agricultural Water Management Optimized fertilization Dryland wheat Fallow-season rainfall Environmental impact Economic income |
| title | Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits |
| title_full | Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits |
| title_fullStr | Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits |
| title_full_unstemmed | Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits |
| title_short | Optimized fertilization based on fallow season precipitation and the Nutrient Expert system for dryland wheat reduced environmental risks and increased economic benefits |
| title_sort | optimized fertilization based on fallow season precipitation and the nutrient expert system for dryland wheat reduced environmental risks and increased economic benefits |
| topic | Optimized fertilization Dryland wheat Fallow-season rainfall Environmental impact Economic income |
| url | http://www.sciencedirect.com/science/article/pii/S0378377423004948 |
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