摘要
本文研究了飞机喷洒尿素、硫酸锌对牧草增产的有效条件、增产机理、增产效果、经济效益,以及喷洒肥液对主要矿质养分的影响问题。
Paper here deals with the conditions, mechanism, effects and profits of the yield increases of herbages and the influences concerning main mineral nutrients by aerial spraying of urea and zinc sulfate solutions.
出处
《中国草地》
CSCD
1992年第5期13-17,共5页
Grassland of China
