湖北省天门市绝大部分棉田土壤有效钾含量偏低,尤其是近年来随着氮素化肥施用量的增多,棉田氮、磷、钾失调现象有所加重,严重影响棉花产量和品质。1989年我们从河北省科学院引进解钾能力较强的硅酸盐细菌肥料(又称生物钾肥),在棉花上进行 In Tianmen City, Hubei Province, most of cotton fields have low available potassium, especially in recent years, with the increase of nitrogen fertilizer application, the imbalance of nitrogen, phosphorus and potassium in cotton fields aggravates, which seriously affects the yield and quality of cotton. In 1989, we introduced silicate bacterial fertilizer (also called bio-potash fertilizer) with strong potassium-dissolving ability from Hebei Academy of Sciences and carried out on cotton