钾是油菜生育过程必须的营养元素之一。施用钾肥对提高油菜产量和改进产品品质有很大的作用。河南省油菜种植面积约300万亩,占秋播面积的4.5%。当前如何提高产量,改善品质是油菜生产上一项紧迫的任务。从1981年秋季起,我所与信阳地区、通许、罗山县农科所、郑州市郊农技站以及新郑县郑庄农科站等单位协作,进行了一系列田间试验;在所内与 Potassium is one of the necessary nutrients for the growth of rape. Potassium fertilizer application to improve rapeseed yield and improve product quality has a significant role. Henan Province rape planting area of ​​about 300 mu, accounting for 4.5% of autumn sowing area. How to increase production and improve quality is an urgent task in rape production. Since the autumn of 1981, we conducted a series of field trials in collaboration with units in Xinyang Prefecture, Tongxu, Luoshan County Agricultural Science Institute, Zhengzhou Suburban Agricultural Technology Station and Xinzheng County Zhengzhuang Agricultural Science Station;