Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model
Winter wheat is the main grain crop in the Yellow River Basin, and optimizing water and nitrogen management can not only improve the yield, but also reduce water and fertilizer waste and environmental pollution. Using two years of winter wheat field trials, the Aquacrop model was calibrated and vali...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Agronomy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4395/14/1/110 |
| _version_ | 1797344830535237632 |
|---|---|
| author | Shunsheng Wang Diru Wang Tengfei Liu Yulong Liu Minpeng Luo Yuan Li Wang Zhou Mingwei Yang Shuaitao Liang Kaixuan Li |
| author_facet | Shunsheng Wang Diru Wang Tengfei Liu Yulong Liu Minpeng Luo Yuan Li Wang Zhou Mingwei Yang Shuaitao Liang Kaixuan Li |
| author_sort | Shunsheng Wang |
| collection | DOAJ |
| description | Winter wheat is the main grain crop in the Yellow River Basin, and optimizing water and nitrogen management can not only improve the yield, but also reduce water and fertilizer waste and environmental pollution. Using two years of winter wheat field trials, the Aquacrop model was calibrated and validated, and 36 different water and nitrogen application scenarios were simulated and analyzed. Among them, the field trials were divided into three N application levels, and three lower limits of water control. The results showed that: (1) the model has good applicability to simulate the growth process of winter wheat in the Yellow River Basin. (2) At a constant level of irrigation or nitrogen application, crop yield initially increased and subsequently decreased with the enhancement of either irrigation or nitrogen application. Finally, through response surface analysis of regression equations, the recommended irrigation volume was determined to be between 296 and 303 mm, and the fertilizer application rate was set between 229 and 261 kg/ha. At these levels, the PFP could achieve over 60% of its maximum. This research provides a theoretical basis for the water-saving, fertilizer-saving and high-yield water and fertilizer management system of winter wheat in the irrigated area of the Yellow River Basin. |
| first_indexed | 2024-03-08T11:08:34Z |
| format | Article |
| id | doaj.art-8be62b2827a4465b977e1e8cdbfe29eb |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-08T11:08:34Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-8be62b2827a4465b977e1e8cdbfe29eb2024-01-26T14:24:34ZengMDPI AGAgronomy2073-43952024-01-0114111010.3390/agronomy14010110Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop ModelShunsheng Wang0Diru Wang1Tengfei Liu2Yulong Liu3Minpeng Luo4Yuan Li5Wang Zhou6Mingwei Yang7Shuaitao Liang8Kaixuan Li9School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaWinter wheat is the main grain crop in the Yellow River Basin, and optimizing water and nitrogen management can not only improve the yield, but also reduce water and fertilizer waste and environmental pollution. Using two years of winter wheat field trials, the Aquacrop model was calibrated and validated, and 36 different water and nitrogen application scenarios were simulated and analyzed. Among them, the field trials were divided into three N application levels, and three lower limits of water control. The results showed that: (1) the model has good applicability to simulate the growth process of winter wheat in the Yellow River Basin. (2) At a constant level of irrigation or nitrogen application, crop yield initially increased and subsequently decreased with the enhancement of either irrigation or nitrogen application. Finally, through response surface analysis of regression equations, the recommended irrigation volume was determined to be between 296 and 303 mm, and the fertilizer application rate was set between 229 and 261 kg/ha. At these levels, the PFP could achieve over 60% of its maximum. This research provides a theoretical basis for the water-saving, fertilizer-saving and high-yield water and fertilizer management system of winter wheat in the irrigated area of the Yellow River Basin.https://www.mdpi.com/2073-4395/14/1/110AquaCrop modelwinter wheatwater and nitrogen regime optimizationirrigationfertilizationgrowth simulation |
| spellingShingle | Shunsheng Wang Diru Wang Tengfei Liu Yulong Liu Minpeng Luo Yuan Li Wang Zhou Mingwei Yang Shuaitao Liang Kaixuan Li Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model Agronomy AquaCrop model winter wheat water and nitrogen regime optimization irrigation fertilization growth simulation |
| title | Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model |
| title_full | Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model |
| title_fullStr | Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model |
| title_full_unstemmed | Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model |
| title_short | Simulation of Winter Wheat Growth Dynamics and Optimization of Water and Nitrogen Application Systems Based on the Aquacrop Model |
| title_sort | simulation of winter wheat growth dynamics and optimization of water and nitrogen application systems based on the aquacrop model |
| topic | AquaCrop model winter wheat water and nitrogen regime optimization irrigation fertilization growth simulation |
| url | https://www.mdpi.com/2073-4395/14/1/110 |
| work_keys_str_mv | AT shunshengwang simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT diruwang simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT tengfeiliu simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT yulongliu simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT minpengluo simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT yuanli simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT wangzhou simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT mingweiyang simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT shuaitaoliang simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel AT kaixuanli simulationofwinterwheatgrowthdynamicsandoptimizationofwaterandnitrogenapplicationsystemsbasedontheaquacropmodel |