苹果园应注意施钾肥目前苹果园施肥往往重视氮肥而忽视钾肥，以致造成苹果成熟晚、着色差、品质劣、贮藏性差等缺点。施钾可促进碳水化合物的形成和运转，可促进花芽分化，增强树体抗寒性，提高果实品质和产量。钾肥在结果树上效果明显，施用的最适时期是６－８月，这时期... Apple orchards should pay attention to the application of potassium fertilizer apple orchard fertilizer often overlook the importance of nitrogen fertilizer and potassium, resulting in late ripening apple, poor color, poor quality, poor storage and other shortcomings. Potassium can promote the formation and operation of carbohydrates, can promote flower bud differentiation, enhance the cold resistance of trees, improve fruit quality and yield. Potassium fertilizer in the results of the tree effect is obvious, the optimum period of application is 6-8 months, this period ...