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温室滴水灌番茄的灌模式的评估基于水产作物和DSSAT模型

Jiankun Ge¹, Zihui Yu¹, Xuewen Gong¹

¹College of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.

Plants (Basel, Switzerland)

|November 25, 2023

概括

与DSSAT模型相比,AquaCrop模型在模拟温室番茄生长和产量方面表现出更高的准确性. 在特定的灌和土条件下 (S7) 实现了最佳产量和用水效率.

科学领域:

农业科学农业科学
作物建模作物建模
温室种植方法温室种植方法

背景情况:

准确的作物模型对于自动化温室管理至关重要.
在温室中用滴灌灌种植西红需要精确的水资源管理策略.
评估不同的灌和覆盖处理对于优化温室番茄生产至关重要.

研究的目的:

为了比较温室番茄的AquaCrop和DSSAT模型的模拟精度.
确定最适合的模型来预测树冠覆盖面,土壤含水量,生物质和产量.
确定最佳的灌和土策略,以最大限度地提高番茄产量和用水效率.

主要方法:

使用三种处理方法的实验设置:高水没有杂草 (NM-0.9 Ep),高水有杂草 (M-0.9 Ep) 和低水有杂草 (M-0.5 Ep).
使用AquaCrop和DSSAT模型来模拟关键的番茄生长参数.
使用2020年数据进行模型校准,并使用2021年数据进行验证.

主要成果:

与DSSAT (RMSE <8.5%,RE <7.6%) 相比,AquaCrop在模拟树冠覆盖面 (RMSE <6.8%) 和生物质/产量 (RE <2.3%) 中的准确性更高.
在高水条件下,AquaCrop精确模拟了土壤水,而DSSAT在没有土的情况下表现更好.
通过S7处理 (0.8Ep用灌) 预测了最高的产量 (8.201t/ha) 和用水效率 (2.79kg/m3).

结论:

在模拟温室番茄生产参数方面,AquaCrop模型优于DSSAT.
优化灌 (0.8 Ep) 和覆盖显著提高番茄产量和用水效率.
结果支持应用准确的作物模型,用于自动化温室管理和可持续农业.

关键词:

这是一个AquaCrop模型.在 DSSAT 模型中使用 DSSAT.滴水灌灌方式塑料覆盖的塑料覆盖太阳能温室是一个太阳能温室.在这里,我们可以看到茄,番茄,番茄.

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