【摘要】 宁夏灌区丰产桑园施肥试验表明 6 6 7m2桑园施纯 N 5～ 2 5kg之间 ,产叶量随纯 N施入量的增加相应增加 ,同时 ,施入适量 K肥是非常必要的。另外 ,7月下旬到 8月中旬 ,分三次进行桑园叶面喷肥 ,不仅增加桑叶产量 ,而且能防止桑树秋后旺长而枝条不充实更多还原

【Abstract】 The manuring test of high yield mulberry field in ningxia irrigation region indicated that the mulberry leaf yield increased with the increase of manuring quantity of net N when the manuring amount of net N was between 5～25kg per 667m 2 of mulberry fied,meantime,it was necessary to apply some potash fertilizer,and some foliage dressing during July and August.更多还原