【摘要】 我省可用作钾肥的工农业灰分中的钾素含量以向日葵秆、玉米秆灰最高。尤其玉米秆灰在全省各地非常普遍,是一种以钾素为主的多元农家复合肥料,值得大力推广利用.更多还原

【Abstract】 The highest content of potassium element in industrial and agricultural ashs which could be used as the resources of potassium fertilizer was found in the ashs of sunflower stalk and corn straw in Gansu province, The authors conclude that the ash of corn straw is of great worth of being popularized and utilized by the fact that it is a widespread and multiple manure containing mainly potassium element in Gansu Province.更多还原