弃耕地苜蓿耗水规律及灌溉制度研究

Research on Water-consuming Law of Lucerne in Abandoned Land

通过对弃耕地苜蓿生长过程中水分变化的研究,发现在苜蓿生长的苗期、分枝期和花期,日平均耗水强度依次表现出递增的趋势,结实期则有所下降;水分变化与生长过程具有相似的变化规律。初步给出了弃耕地苜蓿生长过程中灌溉制度。

By doing research on the changes of moisture content in the soil during uncultivatedland lucerne growth,it finds that waterconsuming per day during the growth seeding stage,dividing branches and flower period tends to increase by degree while it tends to decrease during the fruitbeary stage.Whats more,the changes of moisture content and its growth have the similar law.It shows that the growth of lucerne and the change of moisture content in the soil are identical.There give a system of irrigation for lucerne in abandoned land.