根据笔者几十年的生产实践和教学感觉,要想提高大田作物的产量和品质,必须普遍增施钾肥,其作用和效果远比增施氮肥和磷肥强。从湖北省土壤耕地现状看:由于广大农民普遍存在着“重氮、轻磷、忽视钾”,“重视化肥,轻视农家肥”的思想,导致长期不平衡施肥,终于造成耕地中氮肥相对 According to the author’s decades of production practice and teaching experience, in order to improve the yield and quality of field crops, it is necessary to generally increase the application of potash fertilizer, and its effect and effect are far more powerful than that of adding nitrogen fertilizer and phosphate fertilizer. According to the current status of soil and arable land in Hubei Province, long-term unbalanced fertilization has resulted in the relative increase of nitrogen fertilizers in arable land due to the prevalence of “diazo, phosphorus, potassium,” “emphasis on chemical fertilizers and neglect of manure”