Environment-friendly long-acting sustained/controlled-release compound fertilizer

Abstract

The invention discloses an environment-friendly long-acting sustained / controlled-release compound fertilizer. The compound fertilizer is prepared from the following raw materials in parts by weight: 15 to 20 parts of urea, 24 to 28 parts of calcium superphosphate, 16 to 18 parts of potassium sulfate, 15 to 20 parts of pig hair, 20 to 30 parts of yak hair, 15 to 20 parts of horse mane, 3 to 5 parts of calcium carbonate, 2 to 6 parts of carboxymethyl cellulose, 30 to 35 parts of sulfuric acid with the concentration of 15 to 18 weight percent, 2 to 3 parts of zinc sulfate, 2 to 3 parts of copper sulfate, 2 to 4 parts of sodium molybdate, 1 to 3 parts of radix stemonae powder, 2 to 4 parts of wintergreen oil, 3 to 5 parts of nanometer river sand powder, 2 to 4 parts of nanometer rock phosphate powder, 40 to 50 parts of mushroom residues, 20 to 30 parts of traditional Chinese medicine residue, 6 to 12 parts of brown coal, 15 to 20 parts of bentonite, 2 to 7 parts of alkanolamide, and 5 to 8 parts of enzyme microorganism. The environment-friendly long-acting sustained / controlled-release compound fertilizer provided by the invention has the advantages of good sustained release effect, long release time and little harm to the environment, and can remarkably improve the soil quality.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to an environment-friendly long-acting slow-controlled release compound fertilizer. Background technique [0002] It is well known that although chemical fertilizers are used to increase the yield of crops, the side effects are also quite large, such as poor soil, compaction, environmental pollution, decline in the quality of agricultural products, and residues of harmful substances, etc. After the chemical fertilizers are applied to the farmland, the actual utilization rate is only about 30% on average. Most of them flow into rivers and lakes with farmland drainage or remain in the soil, plants and crops. In terms of crop cultivation in my country, most of them still use chemical fertilizers. Although they have a certain effect on increasing production and income, long-term application will have a negative impact on soil and environmental zones. How to prepare a compound fertiliz...

AI Technical Summary

Problems solved by technology

[0002] It is well known that although chemical fertilizers are used to increase the yield of crops, the side effects are also quite large, such as poor soil, compaction, environmental pollution, decline in the quality of agricultural products, and residues of harmful substances, etc. After the chemical fertilizers are applied to the farmland, the actual utilization rate is only about 30% on average. Most of them flow into rivers and lakes with farmland drainage or remain in the soil, plants and crops. In terms of crop cultivation in my country, most of them still use chemical fertilizers. Although they have a certain effect on increasing production and income, long-term application will have a negative impact on soil and environmental zones. How to prepare a kind of compound fertilizer with good slow-release effect, long fertilizer effect, can significantly improve soil quality, and has little harm to the environment has become a technical problem to be solved at present