论文部分内容阅读
近年来,化肥数量增加,品种增多,对提高粮食和经济作物产量,起了很大作用。但由于施肥技术不当,每斤化肥增产粮食不到一斤,经济效益很差。为了提高化肥肥效,作到增产增收,磴口县农科所对于化肥不同品种、不同用量、不同施肥方法、不同品种配合比例进行了试验,取得了较好的效果。一、按作物生育特点,适期施肥各种作物都有它关键需肥期和
In recent years, the increase in the number of fertilizers and the increase in varieties have played a significant role in raising the output of grain and cash crops. However, due to improper fertilization technology, per kilogram of chemical fertilizer yield less than a pound, poor economic efficiency. In order to improve fertilizer efficiency, to increase production and income, Agricultural Science Institute of Qikou for different varieties of fertilizers, different dosage, different methods of fertilization, with different varieties with the proportion of experiments, and achieved good results. First, according to the characteristics of crop reproduction, fertilization of various crops have their key fertilizer needs and maturity