【摘要】 根据定点定位试验结果 ,提出适用于华北平原现实经济、技术状况的农业节水实用措施 ;喷灌是一种低成本高效益的节水工程技术措施 ,秸秆覆盖和留茬可有效地进行农田界面调控 ;利用水分胁迫诱导的“反冲”机制 ,在农业生产中可以合理配置有限的水资源 ,达到节水稳产的目的。更多还原

【Abstract】 According to the field experiment study results of research station, some of the practical measures for agricultural water conservation were put out in this paper. Marched to the situation of current economical and technical conditions, these practical measures were suitable in the region of Huabei plain. The sprinkle irrigation was a low cost and high efficiency engineering measure for agricultural water conservation. Straw covering and stubble keeping were effective regulating ways on the field layer. In order to get the double beneficial target of both water conservation and stable yield, the overshoot mechanism brought out by water stress was useful to enhance the allocation of the precious water resources.更多还原