The paper analyzes the soil water dynamics and water requirement law of alfalfa,feed maize and ensile maize under 3 kinds of water-saving irrigation conditions through experimental study on the crops.

对节水灌溉条件的紫花苜蓿、米和青贮米需水量进行了试验研究,析了不同灌溉水平3种草作物的土壤水动态和需水规律。