负水头灌溉原理与装置

Principle and equipment of negative pressure irrigation

该文提出了一种新型的负水头灌溉技术,由负水头控制装置、集气装置和供水器3部分组成,系统介绍了目前负水头灌溉技术研究进展,阐述了负水头灌溉技术原理。结合原理结构图和实物图阐述了负水头关键技术的研究情况、工作原理及其作用。该系统利用简易水头控制装置和集气装置通过盘式供水器将灌溉水输送到作物根层。该研究以期建立负水头灌溉技术基本构架,为负水头灌溉系统的深入研究和推广奠定基础。

Based on principle of soil water dynamics, a new irrigation technique namely negative pressure irrigation was developed. The negative pressure irrigationsystem was composed of negative pressure control device, gas collection device and water supply discs. The principle and current status of negative pressure irrigation were introduced in this paper. Combined the principle construction diagram with physical diagram of negative pressure irrigation system, the key technology, working principle and function of the negative pressure irrigation system were analyzed. With simple negative pressure control device and gas collection device, the irrigation system supplies irrigation water to crop roots through water supply discs. Based on analysis and summary in this paper, basic frame of negative pressure irrigation techniques is obtained. The researches provide basic guidelines for further study and extension of negative pressure irrigation technique.