玉米三类苗叶面喷施尿素、磷酸二氢钾效果初报

The Preliminary Report on Effect of Spraying CO(NH2)2+KH2PO4 on the Leaf of Low-vigor Seedlings

摘要:

在玉米苗期对三类苗进行叶面喷施1 % 尿素+ 0.1 % 磷酸二氢钾,可以使83.5% 三类苗生长为正常株。此法作业简单,容易操作,是防止三类苗、提高玉米田间植株整齐度、降低小穗株率的有效措施。

Abstract:

This paper reported that 1% CO(NH₂)₂+0.1% KH₂PO₄ solution was sprayed on the leaf of low-vigor seedlings in the seedling stage and 83 5% “Three kinds seedling of maize” were improved to be the normal seedling. The procedure was simple and available to operate, and prevented low-vigor seedlings from emerging, and improved field plant tidiness of maize, and reduced the rate of smaller ear of maize.