从农业部对全国901个县的土壤普查鉴定结果看,土壤普遍缺氮、缺磷的占 59.1％,缺钾的占 22.9％,土壤有机质低于 0.6％的耕地占10.6％。近年来,由于重视了果园氮、磷化肥的施用,果品单位面积产量不断提高,而土壤氮磷钾比例失调,土壤缺钾的矛盾日益突出。钾肥已成为果品产量和质量进一步提高的制约因素。生物钾肥是山东省科学院80年代末研制的一种硅酸盐细菌制剂,它能分解钾、磷矿石及土壤中难溶性钾、磷,使之变成水溶性养分供作物吸收利用。为研究生物钾肥在果园乃至所有农作物生产中的应用价值,确定其使用技术,莒县果茶中心于1994～1996年,进行了试验研究,现将结果报 According to the results of soil survey of 901 counties in China, the Ministry of Agriculture found that nitrogen deficiency, phosphorus deficiency accounted for 59.1%, potassium deficiency accounted for 22.9% and soil organic matter content was less than 0.6%, accounting for 10.6%. In recent years, due to the emphasis on the orchard of nitrogen and phosphorus fertilizer application, fruit yield per unit area continues to increase, while the proportion of soil N, P and K imbalance, soil potassium deficiency has become increasingly prominent. Potash fertilizer has become a limiting factor in the further improvement of fruit yield and quality. Biological potassium fertilizer is Shandong Academy of Sciences developed in the late 80s a silicate bacterial preparation, which can decompose potassium, phosphate rock and soil insoluble potassium, phosphorus, making it into water-soluble nutrients for crop absorption and utilization. In order to study the application value of bio-potash fertilizer in the production of orchards and even all the crops, the technology of its use was determined. The Qixian fruit-tea center conducted the experimental study from 1994 to 1996, and the results were reported