秋洋芋喷施磷酸二氢钾能增产秋洋芋是需钾较多的作物，特别是到后期块茎迅速膨大时，需钾最多，而后期的土壤常因钾肥流失而造成缺钾，通过根外喷施补充钾肥的不足，可促进块茎的生长而达到增产。同时，秋洋芋到后期叶面积大，叶的表面有绒毛，恨外喷肥吸收利用率高。一、... Autumn potato can increase the production of potassium dihydrogen phosphate autumn potato is required more potassium crops, especially to the rapid expansion of the late tubers, the most potassium required, and the late soil often due to loss of potash caused by potassium deficiency, through the root spray Shi lack of potassium supplementation can promote the growth of tubers and achieve increased production. At the same time, late autumn leafy potato leaf area, leaf surface fluff, hate outside the fertilizer absorption and utilization rate. one,...