Optimizing Irrigation and Nitrogen Application for Greenhouse Tomato Using the DSSAT–CROPGRO–Tomato Model
文献类型： 外文期刊
作者： Zhijie Shan;Junwei Chen;Xiping Zhang;Zhuanyun Si;Ruochen Yi;Haiyan Fan
作者机构：
关键词： DSSAT–CROPGRO–Tomato model;greenhouse;scenario simulation;tomato;water and nitrogen management;yield
期刊名称： Water (Switzerland)
ISSN： 2073-4441
年卷期： 2025 年 17 卷 3 期
页码：
收录情况： SCIE（2025版） ; ; EI（2025版）
摘要： The aim of this study was to optimize water-saving and high-efficiency irrigation and nitrogen application scheduling for greenhouse tomato cultivation in North China. Using experimental data on water and nitrogen inputs, the DSSAT-GLUE parameter adjustment tool was employed to calibrate the genetic parameters of the DSSAT–CROPGRO–Tomato model. Simulations were conducted to assess greenhouse tomato growth, water use, and yield under varying water and nitrogen conditions. After calibration, the model showed average relative errors of 3.19% for the phenological stages, 3.33% for plant height, and 4.52% for yield dry weight, meeting accuracy standards. The results from the calibrated model indicated that increasing irrigation or nitrogen levels initially enhanced yield but led to diminishing returns beyond optimal ranges. The maximum tomato yield and water–nitrogen use efficiency were achieved with irrigation quotas between 320 and 340 mm and nitrogen applications between 360 and 400 kg·ha−1. These findings provide a guideline for efficient water and nitrogen management for greenhouse tomatoes under drip irrigation conditions.
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