Controlled release factor compound fertilizer additive

Abstract

The invention discloses a release control gene compound fertilizer additive which consists of a component A, a component B and a component C; wherein, the component A is manufactured by diammonium phosphate, humic acid, dicyandiamide, amidin-carbamide, paper making black liquor lignin and zeolite powder; the component B is manufactured by polyethylene, polyethylene-vinyl acetate and hydrochloric ether; the component C is manufactured by soluble starch aqueous solution and nano-talcum powder. The product quality of the invention is stable; the release control effect is ideal; the nutrient release period is long; the product also has release control function on phosphor and kalium; the manufacture cost and the selling cost are lower; the product can be popularized and applied on field crops and can improve crop output, improve crop quality, amend and activate the soil, promote fertilizer land productivity, has lower film coating material price, can be supplied sufficiently, can be completely decomposed by biology, has no harmful effects on the soil and environment as well has excellent economic, social and ecological benefits.

Description

technical field [0001] The invention belongs to the technical field of compound fertilizer additives, and in particular relates to a controlled release factor compound fertilizer additive. Background technique [0002] my country is a large agricultural country with a large population and insufficient arable land resources. It feeds 21% of the world's population with 9% of the world's arable land. my country is also the country with the largest fertilizer production and use in the world, among which the production and use of nitrogen fertilizer ranks first in the world, accounting for 9% of the world's cultivated land but consumes 30% of the world's fertilizer. The reason is that my country's fertilizer utilization rate is relatively high. Low. The average utilization rate of fertilizers in developed countries in the world is relatively high in the current season, 55%-70% for nitrogen fertilizers, 20%-50% for phosphorus fertilizers, and 60%-80% for potassium fertilizers. Ho...

AI Technical Summary

Problems solved by technology

The main manifestations are: the quality of slow-release and controlled-release fertilizers is unstable, and it is difficult to produce in full compliance with the requirements of the "Slow and Controlled-Release Fertilizer" HG/T3931-2007 standard; the effect of slow and controlled release is not ideal, and the nutrient release period cannot reach the growth period The fertilizer requirements of longer crops (such as northern winter wheat) and the lack of controlled release technology for nutrients phosphorus and potassium; the production cost and sales cost of slow and controlled release fertilizers are significantly high...