与其他作物相比 ,水稻多为灌溉种植 ,传统的水稻栽培技术就是整个生长季淹水 ,而且整地时泡田时间很长。因此 ,有人认为种稻浪费了大量的水 ,试图通过改善水的管理或者改种其他作物来节约用水。问题的关键是用更少的水来生产更多的稻谷 ,是通过节约用水和提高单位水的利用率来 Compared with other crops, rice is mostly irrigated. The traditional rice cultivation technique is flooding throughout the growing season and the time for soil preparation is too long. Therefore, some people think that rice is wasted a lot of water and try to save water by improving water management or re-planting other crops. The crux of the problem is producing more paddy with less water, by saving water and increasing unit water use