论文部分内容阅读
笔者于1990～1992年3年在山药地采用多点追施钾肥试验。结果表明:增产幅度为15％～18％。 具体做法是:在山药秧未铺地时,每亩地用磷酸二氢钾
The author in 1990 ~ 1992 three years in yam to use more topdressing potash test. The results showed that the yield increase ranged from 15% to 18%. The specific approach is: yam untreated seedlings, the use of potassium dihydrogen phosphate per acre