合理施用硫酸钾、氯化钾等钾肥,既能改变作物品质,又能协调养分供应,显著提高产量。但有一些农户因钾肥施用不当,造成了钾害。如将氯化钾施用于忌氯的柑桔树上,导致柑桔叶片灰白无光泽,影响光合作用;严重的急性中毒,老叶脱光,新叶发僵,生长缓慢,甚至枯死。怎样合理施用钾肥,笔者认为: Rational application of potassium sulfate, potassium chloride and other potash, both to change the crop quality, but also to coordinate nutrient supply, significantly increase production. However, some farmers due to improper use of potash, resulting in potassium damage. Such as the potassium chloride applied to citrus trees to avoid chlorine, resulting in citrus leaves gray dull, affecting photosynthesis; severe acute poisoning, old leaves stripped, new leaves stiff, slow growth, or even dead. How to use potassium fertilizer reasonably, I think: