Degradable slow release fertilizer containing magnesium sulfate and preparing method thereof

Abstract

The invention discloses a degradable slow release fertilizer containing magnesium sulfate. The fertilizer is prepared from, by weight, 10-20 parts of potassium phosphate, 10-20 parts of ammonium nitrate, 10-12 parts of ammonium dihydrogen phosphate, 5-10 parts of potassium nitrate, 10-15 parts of urea, 0.4-0.5 part of ammonium magnesium phosphate, 0.2-0.4 part of zinc sulfate, 0.2-0.4 part of magnesium sulfate, 0.2-0.3 part of ferric chloride, 0.1-0.2 part of manganese sulfate, 10-15 parts of charcoal, 5-10 parts of humic acid and 30-40 parts of coated material. The invention further discloses a preparing method of the degradable slow release fertilizer containing magnesium sulfate. The degradable slow release fertilizer containing magnesium sulfate is balanced in nutrition, can release nutrient slowly, and avoid pollution to the environment caused by nutrient loss; the water retention coated material can be degraded, which avoids secondary pollution to the environment, and meanwhile the material can retain water and fertilizer, improve the soil environment, and promote the crop growth.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a degradable slow-release fertilizer containing magnesium sulfate and a preparation method thereof. Background technique [0002] For some fertilizer-loving crops, in order to increase the yield, people use large amounts of chemical fertilizers for a long time, but long-term large-scale use of chemical fertilizers will cause problems such as soil compaction and water eutrophication. In order to avoid the impact of chemical fertilizers on the environment, people increase organic fertilizers and slow-controlled release However, the coating materials commonly used for slow and controlled release fertilizers are not easy to degrade, which will cause secondary pollution to the environment. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a degradable slow-release fertilizer containing magnesi...

AI Technical Summary

Problems solved by technology

[0002] For some fertilizer-loving crops, in order to increase the yield, people use large amounts of chemical fertilizers for a long time, but long-term large-scale use of chemical fertilizers will cause problems such as soil compaction and water eutrophication. In order to avoid the impact of chemical fertilizers on the environment, people increase organic fertilizers and slow-controlled release However, the coating materials commonly used for slow and controlled release fertilizers are not easy to degrade, which will cause secondary pollution to the environment

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