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氮、磷、钾是农作物生长必不可少的三大元素,目前我国氮、磷肥施用量已基本满足作物生长需求,而钾肥却始终没有得到足量施用,主要因为我国钾肥短缺,要靠进口来与氮、磷肥平衡。那么如何科学施用钾肥,开发新的钾肥肥源及助剂,提高钾肥利用率,是我们急需探讨的一个现实课题。一、科学施用钾肥(一)、根据土壤条件合理分配和施用钾肥1、根据土壤速效钾(氧化钾)的含量来确定钾肥施用
Nitrogen, phosphorus and potassium are the three essential elements of crop growth. At present, the application rates of nitrogen and phosphate fertilizer in our country have basically met the demand of crop growth. However, the application of potash fertilizer has not been fully applied, mainly due to the shortage of potash fertilizer in China With nitrogen, phosphate fertilizer balance. So how to use potassium fertilizer scientifically, develop new fertilizer sources and auxiliaries of potassium fertilizer and increase the utilization rate of potash fertilizer is a realistic subject that we urgently need to explore. First, the scientific application of potash (A), according to the soil conditions and the rational allocation and application of potassium 1, based on soil available potassium (potassium) content to determine the potash fertilizer