不同节水灌溉及覆盖方法对红富士苹果幼树生长发育的影响

针对陕西延安大面积栽培苹果而水资源又极为短缺的现状,对黄壤土2a生普通红富士苹果进行了连续3a的节水灌溉试验,以探索可操作性强的节水措施,结果表明,节水漫灌、沟灌、穴灌分别比生产对照省水50%、75%、95%,树干生长无大差异;覆盖对成花有显著促进作用。

Effect of Different Method of Saving-water Irrigation and Mulching on the Yield and Growth of Common Red Fuji Apple

It is very suitable for apple on the loess loam in Yan''an,which is located in the north of Shaanxi pr ovince,where waster resources is so deficit that it limits the growth of apple.To solving this problem,experiments which lasted from 1997 to 1999 on 2-years-old red Fuji apple which were planted on the loss loam were took to search a very practicable method to savewater.The results showed:(1) Compared to traditional flood,saving-water flood,irrigation in furrow and irrigation in hole can save water 50%,75% and 95%,respectively,while the growth of branches in different methods was nearly same;(2) Coverage with grass or plastic film can greatly promote the function of blossom-becoming.