Farmers don't need specialized training in how to use them or need to apply more water or fertilizer to get better results.

农民无需经过任何专门培训便懂得如何栽培，粮食的产生也无需太多水或肥料，也能丰产丰收。

youdao

Scientists are also working on other plants that either use less water or use it better, or both.

VOA: special.2009.01.20

Scientists are also working on other plants that either use less water or use it better,or both.

VOA: special.2009.03.23