upward irrigation

例句：

1. 1. The farmer used a vertical irrigation system to irrigate his crops efficiently.
   这位农民使用垂直灌溉系统高效地灌溉他的庄稼。
2. 2.The city has implemented an upward irrigation project to improve its water usage efficiency.
   该市实施了一个向上灌溉项目，以提高其用水效率。
3. 3. Upward irrigation is a method of watering plants that delivers water from above the soil surface.
   向上灌溉是一种将水从土壤表面以上输送给植物的方法。