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远程检测棉花中的水应力,使用中心旋转灌系统安装的传感器包
Bala R Sapkota1, Curtis B Adams2, Qiong Su3
1Department of Soil and Crop Sciences, Texas A&M University, 370 Olsen Blvd, College Station, TX, 77843, USA.
Scientific reports
|October 8, 2024
概括
这项研究表明,一个中心枢纽灌系统上的传感器组件有效地使用水短缺指数 (WDI) 检测棉花的水压力. 该系统准确地区分了不同灌速度的压力水平,改善了作物管理.
科学领域:
- 农业工程 农业工程
- 植物生理学 植物生理学
- 遥感是一种远程传感.
背景情况:
- 对于棉花水应力检测的红外温度 (IRT) 传感器,由于后勤问题而面临采用挑战.
- 缺水指数 (WDI) 提供了使用遥感测量作物水压力评估的替代方案.
研究的目的:
- 为了评估一个传感器包 (IRT,NDVI,气象站) 在一个中心旋转灌系统上检测棉花的水应力使用WDI.
- 评估系统在不同灌处理和生产领域的性能.
主要方法:
- 一个传感器包装着向下面的IRT和NDVI传感器 (45 ̊角) 和一个迷你气象站,安装在一个中心旋转灌系统上.
- 实地研究在两年内进行了四次灌处理 (0-90%的ET替代) 和两个商业棉花田.
主要成果:
- 传感器组件有效区分了与不同灌速度相对应的棉花水应力水平.
- 一般来说,WDI表现良好,尽管它在最高灌率 (90%的ET替代) 上高估了水应力.
结论:
- 安装在中心枢纽的传感器系统是检测棉花水压力的可行工具.
- 从传感器的有利位置集成天花板覆盖面 (Fc) 测量可以提高系统的准确性.
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