一、钾是土壤的财富，是农业增产增收的关键 钾是作物生长发育所必需的三大营养元素之一，土壤中含钾量越丰富，其供钾能力越强；如果土壤中含钾量不足或缺乏，则将影响农作物对钾素的需求，从而导致农作物产量的下降和品质的降低，限制土壤和农业的产出能力。 随着我国高需钾 I. Potassium is the wealth of the soil and is the key to agricultural production increase. Potassium is one of the three major nutrients necessary for crop growth and development. The more abundant potassium in the soil, the stronger the potassium supply capacity; if the soil contains potassium. Insufficient or lacking will affect the demand for potassium by crops, which will lead to a decline in crop yields and quality, and limit the output capacity of soil and agriculture. With China’s high potassium demand