Active microorganism coated slow release composite fertilizer

Abstract

The invention relates to the field of composite fertilizers, in particular to an active microorganism coated slow release composite fertilizer, which is prepared from the following raw materials by weight part: 10-15 of 1250-2000 mesh diatomite, 10-12 of triple superphosphate, 15-18 of potassium dihydrogen phosphate, 20-22 of urea, 18-20 of ammonium carbonate, 10-12 of boric magnesium fertilizer, 14-15 of plant fallen leaves, 7-8 of soy bean residue, 0.02-0.03 of a JT strain, 1-2 of ammonium molybdate, 5-6 of Oenanthe javanica, 1-2 of freshwater shrimp shell powder, 10-12 of crop straw, 8-10 of peanut meal, 1-3 of radix isatidis, 6-8 of fermented chicken manure, 10-12 of porous starch, 1-3 of sodium trimetaphosphate, 4-6 of acrylic acid, 6-8 of polyvinyl alcohol, 0.1-0.2 of ammonium persulfate, 3-5 of cherry stone powder, 2-4 of orange peel, 15-18 of fermented alga liquid, and 4-5 of an additive. The composite fertilizer provided by the invention has wide material sources and comprehensive and rich nutrients, and in terms of the production technology, diatomite and an active slow release coating agent are utilized to form dual coating on nutrients, so that the fertility can be more lasting, and the soil vitality can be improved, plant diseases and insect pests can be reduced, and the efficacy of enhancing crop yield and quality can be achieved.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to an active microbial coated slow-release compound fertilizer. 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. However, the exist...

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