Compound fertilizer

Abstract

The invention discloses a compound fertilizer, which comprises the following ingredients in percentage by mass: 15 to 20 percent of nitrogen fertilizers, 10 to 15 percent of phosphate fertilizers, 6 to 25 percent of potassium fertilizers, 6 to 8 percent of nitrohumic acid and 6 to 12 percent of potassium humate. The compound fertilizer provided by the invention has the advantages that the absorption and utilization rate of crops on potassium and urea can be improved; the passivation of phosphorus is delayed; the soil is improved; and the crop growth is promoted.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a compound fertilizer. Background technique [0002] At present, there is a common problem in our country that the excessive application of chemical fertilizers leads to the decline of soil quality. Due to the decline of soil quality, it is difficult for crops to absorb fertilizer nutrients and grow poorly. On the contrary, farmers increase fertilization again, entering a vicious circle. Contents of the invention [0003] The purpose of this invention is to provide a kind of compound fertilizer. [0004] The technical scheme that the present invention adopts is as follows: [0005] A kind of compound fertilizer, according to mass ratio, described compound fertilizer comprises: content is 15%~20% nitrogen fertilizer, content is 10%~15% phosphorus fertilizer, content is 6%~25% potash fertilizer, content is 6% %-8% nitro humic acid and 6%-12% potassium humate. [0006] The ...

AI Technical Summary

Problems solved by technology

[0002] At present, there is a common problem in our country that the excessive application of chemical fertilizers leads to the decline of soil quality. Due to the decline of soil quality, it is difficult for crops to absorb fertilizer nutrients and grow poorly. On the contrary, farmers increase fertilization again and enter a vicious circle.