Slow-dissolving-type fertilizer

Abstract

The invention relates to a slow-dissolving-type fertilizer. The slow-dissolving-type fertilizer comprises the following raw materials in parts by weight: 60 to 100 parts of urea, 20 to 30 parts of sulfate, 20 to 30 parts of phosphate esterification starch, 10 to 20 parts of nitro humic acid ammonium, and 2 to 5 parts of gluconic acid. According to the slow-dissolving-type fertilizer, the chemical and physical environments of various nutritional elements in soil can be improved; the dispersing speed and the migration distance of the nutrients, such as nitrogen, phosphorus and potassium, in the soil are increased; the absorption and utilization to water and the nutrients by a root system are promoted.

Description

technical field [0001] The invention relates to a slow-dissolving chemical fertilizer. Background technique [0002] With the advancement of science and the development of society, the population of the earth is constantly increasing. In order to solve the growing food demand, the development of agricultural science and technology is becoming more and more important. In the development of agricultural science and technology, chemical fertilizers play a vital role. However, over the years, only 20% to 30% of the chemical fertilizers applied to the soil have been absorbed and utilized by the crops of the season, and the rest of the chemical fertilizers have been fixed by the soil, forming a large amount of phosphate and nitrate deposition residues, destroying the aggregate structure of the soil, It causes soil compaction, soil fertility decline, and arability of cultivation becomes poor. Therefore urgently need to develop a kind of slow-dissolving chemical fertilizer of high ...

AI Technical Summary

Problems solved by technology

[0002] With the advancement of science and the development of society, the population of the earth is constantly increasing. In order to solve the growing food demand, the development of agricultural science and technology is becoming more and more important. In the development of agricultural science and technology, chemical fertilizers play a vital role. However, over the years, only 20% to 30% of the chemical fertilizers applied to the soil have been absorbed and utilized by the crops of the season, and the rest of the chemical fertilizers have been fixed by the soil, forming a large amount of phosphate and nitrate deposition residues, destroying the aggregate structure of the soil, Causing soil compaction, soil fertility decline, and poor arability