Macroelement water-soluble fertilizer containing potassium fulvate and preparation method of macroelement water-soluble fertilizer

Abstract

The invention discloses a macroelement water-soluble fertilizer containing potassium fulvate. The water-soluble fertilizer is prepared by mixing and grinding the following raw materials, and is prepared by mixing the following components in parts by weight: 30-50 parts of urea, 20-30 parts of potassium nitrate, 10-20 parts of potassium dihydrogen phosphate, 3-7 parts of nitro phosphate, 4-8 partsof ammonium sulfate, 2-4 parts of potassium fulvate, 0.1-0.2 part of compound sodium nitrophenolate, 0.04-0.06 part of sodium naphthalene acetate, 0.3-0.5 part of sodium dodecyl benzene sulfonate, 0.08-0.12 part of a stabilizer, 2-4 parts of boric acid, 0.03-0.05 part of a fertilizer synergist, 3-7 parts of ethylene diamine tetraacetic acid (EDTA) chelated iron, 3-7 parts of EDTA chelated zinc and3-7 parts of EDTA chelated manganese. The preparation method comprises the following steps: putting the raw materials into a stirring device for mixing under a dry production environment according tothe proportions, then carrying out crushing, and carrying out packaging to obtain a finished product. The macroelement water-soluble fertilizer can provide comprehensive and balanced nutrition for growth and development of crops, and is not caked easily during a storage period.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a large-element water-soluble fertilizer containing potassium fulvic acid and a preparation method thereof. Background technique [0002] Humic acid is a macromolecular organic substance that exists widely in nature. It is widely used in various fields such as agriculture, forestry, animal husbandry, petroleum, chemical industry, building materials, medicine and health, and environmental protection, spanning dozens of industries. According to the solubility of humic acid in the solvent, it can be divided into three components: ①The part soluble in acetone or ethanol is called brown humic acid; ②The part insoluble in acetone is called black humic acid; ③The part soluble in water or dilute acid Some are called fulvic acid (also known as fulvic acid). The basic structure of the humic acid macromolecule is an aromatic ring and an aliphatic ring, and there are functional groups such as carboxyl, hydro...

AI Technical Summary

Problems solved by technology

[0004] Existing fulvic acid fertilizers are all simple physical blending, various nutrients cannot be organically mixed evenly, and the structure is relatively loose; some water is added in the production process, and the fertilizer is prone to hardening and failure during storage, which is not conducive to storage, etc.