旱地棉田施用钾肥效应

Effect of Applying Potassium Fertilizer on Rain-Fed Cotton Field

对旱地棉田施用化学钾肥进行了研究。结果表明，钾素能增强棉株的抗旱性与生理活性，生育进程提前３～７ｄ，纤维品质好，皮棉产量增加６．２４％～３８．７３％。

In 1990￣1992, application of chemical potassium fertilizer on rain-fed cotton field was studied system atically. The result showed that potassium fertilizer could emhance cotton resistance and fiber quality, and incerased the lint yield by 6.24%￣38 73%.