Method for preparing organic sustained release fertilizer synergist

Abstract

The invention provides a method for preparing an organic sustained release fertilizer synergist. The synergist comprises the following components in portion by weight: 25 to 60 portions of organic component, 3 to 15 portions of synergistic component, 10 to 13 portions (solid) and 3.5 to 9 portions (liquid) of sustained release component, 0.5 to 5 portions of trace elements, 18 to 30 portions of inorganic nutrient, and 2 to 7 portions of additive. The synergist is prepared by the method of weighing, mixing, spray granulation and low-temperature drying, wherein the organic component contains 2 to 5 portions of humic acid, 25 to 45 portions of mature garbage or barnyard manure, and 2 to 5 portions of residue of monosodium glutamate and sugar; the synergistic component contains 1 to 3 portions of zeolite, 1 to 5 portions of fly ash, and 2 to 5 portions of synergistic agent; the sustained release component contains 10 to 13 portions of bentonite, 0.02 to 0.1 portion of nitrification inhibitor, and 4 to 8 portions of urease inhibitor (liquid); the trace elements contain 0.1 to 1 portion of zinc sulfate, 0.1 to 1 portion of manganese sulfate, 0.1 to 1 portion of borax, 0.1 to 1 portion of copper sulfate, and 0.1 to 1 portion of ferrous sulfate; the inorganic nutrient contains 6 to 9 portions of urea, 7 to 9 portions of ammonium phosphate, and 5 to 7 portions of potassium sulfate; and the additive contains 2 to 7 portions of plaster. The synergist is suitable for the planting of field crops and forest fruits.

Description

technical field [0001] The invention relates to the improvement of organic fertilizers, especially the synergism of slow-release fertilizers, in particular to a preparation method of organic slow-release fertilizer synergists. Background technique [0002] According to literature search, research reports on slow-release fertilizers include: ①Patent No.: 03145577.8 "Fertilizer Synergist and Its Production Method" The patent is to coat the outer surface of the water-retaining synergist into a compound fertilizer, which not only has the ability to retain water The characteristics of the synergist, but also better adsorption of nitrogen, phosphorus, potassium in the compound fertilizer, can better improve the utilization rate of the compound fertilizer, thereby increasing crop yield. ② Mi Guifang, Wang Yuexin, and Liu Sensen from Shanxi Agricultural University published the paper "Experimental Research on Humic Acid Water-Retaining and Slow-release Fertilizers", which disclosed ...

AI Technical Summary

Problems solved by technology

④ "Phosphate Fertilizers and Compound Fertilizers", Volume 21, Issue 5, September 2007, "Production Technology of Biological Slow-release Fertilizers" published by Shandong Wang Huaichen et al., reveals the technology of using humic acid as urea slow-release agent to compound microbial fertilizers, etc., above Neither involved the research and preparation of slow-release fertilizer synergists

At present, most of the slow-release fertilizers on the market are mainly single chemical fertilizers, and there is no report on the synergy of compound slow-release fertilizers. Even similar products do not all use animal manure as the main organic raw material, and some products are similar. , the price is inflated, and the service for benefiting farmers is not ideal