控制灌溉在高产的条件下能够大幅度地减少灌溉用水量，提高水分利用效率。
The rice yield of the controlled irrigation is almost equal to that of the CK, but the controlled irrigation reduces the amount of irrigation and increase water use efficiency.
人们还可以在封闭的灌溉系统中循环用水以减少用水量、避免径流造成土肥流失。
You’d reduce water use and end runoff by recycling water in a closed irrigation system.
人们还可以在封闭的灌溉系统中循环用水以减少用水量、避免径流造成土肥流失。
You'd reduce water use and end runoff by recycling water in a closed irrigation system.
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