钾是作物生长发育所必需的三大营养元素之一。要想提高钾肥的施用效果,除了注意将钾肥与氮、磷肥配合施用外,还应特别注意掌握好以下五点:1、要施于喜钾作物上。作物的种类不同,需钾特性也不同。豆科作物对钾最敏感,施用后增产显著。含碳水化合物的薯类作物和含糖较多的甜菜、甘蔗、西瓜以及果树等,经济作物 Potassium is one of the three major nutrients required for crop growth and development. In order to improve the application effect of potash fertilizer, besides paying attention to the application of potash fertilizer and nitrogen and phosphate fertilizer, special attention should be paid to the following five points: 1. Apply on hi potassium crops. Different types of crops, potassium characteristics are also different. Leguminous crops are the most sensitive to potassium, yield significantly after application. Carbohydrate-containing potato crops and sugar-rich beet, sugarcane, watermelon and fruit trees, etc., cash crops