Production method for EDTA chelate efficient foliar fertilizer

Abstract

The invention discloses a production method for EDTA chelate efficient foliar fertilizer. According to the production method, the foliar fertilizer is obtained by subjecting disodium EDTA to a low-temperature rapid complexation with iron, copper, calcium, magnesium, zinc and manganese compounds respectively; concentrating and drying reaction products to obtain different EDTA chelates; and mixing the EDTA chelates with other components according to proportions. The foliar fertilizer is simple in production process and low in manufacture cost. A production process has no addition of foreign chloride ions or sulfate radicals, does not influence crop growth or cause soil hardening after use, is safe to use and has no side effect. The crop foliar fertilizer prepared by using the chelates obtained by the method can enter plant bodies rapidly through leaves, is fast in fertilizer efficiency, and has the effects of regulating nutrient supply, balancing metabolism nutrient demands and controlling release.

Description

Technical field [0001] The invention belongs to the technical field of crop foliar fertilizers, and specifically relates to a production method of EDTA chelate salt foliar fertilizers. Background technique [0002] As a kind of spray fertilizer, foliar fertilizer is generally applied to the surface of crop leaves. Its nutrients mainly enter the leaves through the stomata of the leaves, and then participate in the metabolism of the crops. Therefore, the adhesion of foliar fertilizers on leaves and the ability to quickly penetrate into leaf tissues are important indicators that affect the effectiveness of foliar fertilizers. The currently widely used trace element foliar fertilizers generally suffer from poor water solubility and adhesion, slow absorption by leaves, and easy loss of effective nutrients, which affects the effectiveness of fertilizers. There are also foliar fertilizers that mix EDTA chelate salt with other elements to make fertilizers, but they also have the di...

AI Technical Summary

Problems solved by technology

Existing widely used trace element foliar fertilizers generally have the disadvantages of poor water solubility and adhesion, slow absorption of leaves, easy loss of effective nutrients, and affect the exertion of fertilizer efficiency

There are also foliar fertilizers that mix EDTA chelate salts with other elements to make fertilizers, but there are also complex processes and the disadvantages of high production costs; while the EDTA chelate salt fertilizers produced by existing methods have a large amount of chloride ions and sulfate radicals. Long-term use of crops is not only not conducive to leaf growth, but also causes soil compaction