摘要
富钾褐土上增施钾肥对棉花产量的影响研究表明，在一定范围内适量用好钾肥，可实现棉花增产增收。每公顷施Ｋ２Ｏ７５ｋｇ，可获得最大的经济效益，每公斤Ｋ２Ｏ可增产皮棉０．９２ｋｇ，产投比２．７４。在目前生产水平下，富钾褐土棉花钾肥用量以７５～１５０ｋｇ（Ｋ２Ｏ）／ｈｍ２为宜。
The study showed that K fertilizer has showed its fertilizer effect in cotton. To some extent, cotton yield can be increased with proper rate of K fertilizer application. The maximum economic effect can be obtained by applying K2O75kg/hm2. Lint yield can be increased by 0. 92 kg/kg K2O application. The ratio of investigation and output is 2. 74. In present production level, the optimum rate for soil which is rich in K is 75￣150kg(K2O)/hm2.
出处
《山西农业科学》
1996年第3期24-26,共3页
Journal of Shanxi Agricultural Sciences
关键词
运城盆地
钾肥
棉花
增产
Yuncheng basin
K fertilizer
Cotton
Effect
