The method could also be used to estimate other cropirrigation quota.
该文推算苜蓿灌溉定额的方法也可用于其它作物灌溉用水定额的估算。
2
And groundwater used for cropirrigation is being depleted in India, China, the U. S., and pakistan-the world's top four irrigators, she added.
她接着说，在世界四大灌溉国——印度、中国、美国和巴基斯坦，用于灌溉的地下水已经耗尽。
3
In the past, studying on the suitable period for cropirrigation, the biological characteristics of crops and soil moisture were used as their standards.