为了节省水资源和防止土壤水分过度移动可能导致的地下水污染,定期灌溉的应用越来越受到重视。特别是在生长季之初土壤常处于过饱和的湿润地区,灌溉只作为一种补充时,这种制度尤为正确。减少玉米花前生长期间的水分供应似乎是合理的。现已发现营养生长期水分亏缺对最终产量的伤害低于开花期和灌浆期亏缺的伤害。然而,在植株生长过程中茎叶 In order to save water resources and prevent possible groundwater pollution caused by excessive movement of soil moisture, the application of regular irrigation is getting more and more attention. This system is especially true when soil is often saturated and humid at the beginning of the growing season and irrigation is only used as a supplement. It seems plausible to reduce the water supply during pre-anthesis growth. It has been found that water deficit during vegetative growth is less damaging to the final yield than damage during flowering and filling. However, during the growth of the plant stems and leaves