High-performance controlled-release compound fertilizer containing dried fish scales

Abstract

The invention relates to the field of the compound fertilizers and in particular relates to a high-performance controlled-release compound fertilizer containing dried fish scales. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of diatomite having the granularity of 1250-2000 meshes, 0.1-0.2 part of kinetin, 15-18 parts of monopotassium phosphate, 10-12 parts of ammonium nitrate, 2-4 parts of epsilon-polylysine, 8-10 parts of acrylic acid grafted starch, 3-5 parts of potassium metabisulfite, 12-14 parts of fine powder of dried fish scales, 6-8 parts of sodium bicarbonate, 18-22 parts of dried poultry litter, 20-25 parts of urea, 3-6 parts of polyaspartic acid, 28-32 parts of calcium magnesium phosphate, 2-4 parts of laurinol, 15-18 parts of dried waste kernel powder, 6-8 parts of carbomer, 2-4 parts of zinc gluconate, 6-8 parts of edible vinegar and 4-5 parts of auxiliaries. The raw materials of the compound fertilizer are wide sources, cheap and easily available; during production, the diatomite and an enveloping agent are utilized to double cover the nutrients so that the nutrients are not easy to lose and the fertilizer efficiency lasts longer, and therefore, the requirements of the growth of crops at all stages can be met, the soil environment also can be improved, bacteria and insects can be prevented from damaging roots and stems, and the yield and the quality of the crops both can be increased.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a high-efficiency slow-release compound fertilizer containing dried fish scales. Background technique [0002] In modern agricultural production, compound fertilizer can be seen everywhere. It has the advantages of high nutrient content, less auxiliary components, high fertilizer utilization rate, and convenient storage and application. It plays an important role in promoting high and stable crop yields. Slow-release compound fertilizer is an important category of compound fertilizers, and it is also the focus of research on the development of my country's chemical fertilizer industry. Its slow-release principle is to coat a thin layer of hydrophobic substances on the surface of fertilizer particles, so that the internal nutrients are slowly released to the In the soil, nutrients are continuously supplied to crops, which effectively improves the utilization rate of fertilizers....

AI Technical Summary

Problems solved by technology

However, the existing slow-release compound fertilizers still have certain shortcomings, mainly in that the nutrient ratio is relatively fixed, and it is difficult to meet the different needs of various soils and various crops; the slow-release effect is not satisfactory, and does not match the growth needs of crops , thereby reducing fertilizer efficiency, affecting crop growth, resulting in reduced production and income