文献类型： 外文期刊

作者： Chen, Junwei ¹ ; Li, Qiang ³ ; Zhang, Xiaopei ¹ ; Dong, Jianshu ⁴ ; Hou, Xianfei ³ ; Miao, Haocui ³ ; Li, Haiming ¹ ; Zhang, Yuchao ¹ ; Shen, Xiaojun ¹ ; Si, Zhuanyun ² ; Shan, Zhijie ⁶ ;

作者机构： 1.Tianjin Agr Univ, Tianjin Agr Univ China Agr Univ Joint Smart Water, Coll Water Conservancy Engn, Tianjin 300392, Peoples R China

2.Chinese Acad Agr Sci, Inst Western Agr, Changji 831100, Peoples R China

3.Xinjiang Acad Agr Sci, Inst Econ Crops, Urumqi 830091, Peoples R China

4.Shihezi Univ, Coll Water Conservancy & Architectural Engn, Shihezi 832000, Peoples R China

5.Chinese Acad Agr Sci, Inst Farmland Irrigat, Xinxiang 453002, Peoples R China

6.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100048, Peoples R China

关键词： DSSAT model; Arachis hypogaea; peanut; water and nitrogen regulation; parameter estimation; model validation

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 4 期

页码：

收录情况： SCI

摘要： In order to explore the applicability of the peanut growth simulation model CSM-CROPGRO-Peanut under conditions of mulched drip irrigation in Xinjiang, and to determine the optimal scenario for parameter estimation and model validation, field experiments were conducted in 2022 and 2023 on the water and nitrogen regulation of peanut. Based on the water requirements during the stages of peanut growth, three irrigation levels (low, medium, and high) and two nitrogen application levels (100% N and 50% N) were set, resulting in six treatments. An additional control treatment (CK) with a medium irrigation level and no nitrogen application was also included. In this study, four different parameter estimation and validation protocols were designed, and different parameter estimation results were obtained using the DSSAT-GLUE parameter estimation module. The results showed that the FL-SH (time between first flower and first pod), FL-SD (time between first flower and first seed), SIZLF (time between first flower and first seed), XFRT (maximum size of full leaf), and WTPSD (maximum weight per seed) parameters exhibited strong variability, with coefficients of variation of 24.33%, 22.9%, 19.78%, 14.47%, and 23.82%, respectively, and were significantly affected by environment-management interactions. Other parameters showed weaker variability, with coefficients of variation that were all less than 10%. The model outputs varied significantly among different parameter estimation protocols. Scenario 3, which used data from the adequate irrigation and adequate fertilization treatment (W3N2) environment across both years for parameter estimation and data from other treatments for validation, showed the highest model calibration and validation accuracy. The average absolute relative error (ARE) and normalized root mean square error (nRMSE) for model calibration and validation were the lowest at 9.1% and 10.1%, respectively. The CSM-CROPGRO-Peanut model effectively simulated peanut growth and development as well as soil moisture dynamics under mulched drip irrigation conditions in Xinjiang, with the highest simulation accuracy observed under full irrigation conditions. The findings provide a basis for using the CSM-CROPGRO-Peanut model to develop suitable irrigation and nitrogen application regimes for peanuts under mulched drip irrigation in Xinjiang.