High tower humic acid type composite fertilizer

Abstract

The invention discloses a high tower humic acid type composite fertilizer. The high tower humic acid type composite fertilizer is prepared from the following materials in percentages by weight: 3-10 parts of urea, 10-13 parts of humic acid, 20-25 parts of ammonium humate, 15-20 parts of monoammonium phosphate, 3-7 parts of 3,4-dimethylpyrazole phosphate, 12-17 parts of potassium chloride, 12-16 parts of ammonium chloride, 1-3 parts of zinc sulfate, 1-2 parts of borax and 0.4-0.7 part of kieselguhr. The kieselguhr is added in the high tower humic acid type composite fertilizer, an effect of slowly releasing fertilizer can be achieved, furthermore, the utilization rate of the fertilizer is increased, absorption of crops is facilitated, soil is improved, the production cost is reduced, and caking of the fertilizer can be prevented; and high-quality humic acid type composite fertilizer particles can be obtained.

Description

technical field [0001] The invention relates to a compound fertilizer, in particular to a high-tower humic acid compound fertilizer, which belongs to the technical field of chemical fertilizer production. Background technique [0002] Humic acid is a kind of complex organic aromatic carboxylic acid macromolecule with wide application. It is mainly composed of C, H, O, N, S and other elements. Strong hydrophilic, ion exchange, complexation and adsorption capabilities; ordinary fertilizers have a short period of fertilizer effectiveness and can provide nutrients to crops in a short period of time. If they cannot be absorbed by crops in time, they will easily cause nutrient loss, which is not only wasteful, but also brings harm to the environment. Harm: Adding pretreated humic acid to ordinary fertilizers can make the fertilizer have an adsorption function, which can endow the fertilizer with a slow-release effect and the function of stimulating crop growth, achieve the effects...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, humic acid is also added to ordinary fertilizers to improve the fertilizer effect, and the production methods of the existing humic acid fertilizers mainly include: direct nitriding, pickling, salt double decomposition, alkali Extraction method, nitric acid oxidation method, comprehensive oxidation method, air ozone oxidation and air oxidation method, etc.; what they have in common is to convert insoluble humic acid and its insoluble salts into soluble humic salts, so as to provide It can be absorbed and utilized by plants; or try to increase it if the content of humic acid is low; but there are many problems and deficiencies in the existing production technology and formula of compound fertilizers: 1) The production quantity of compound fertilizers is small, the variety is single, and the application The coverage is low, and more than 70% of the varieties are low-concentration and low-efficiency compound fertilizers. The practical crops are mainly concentrated on corn, and a small amount of economic crops; 2) The proportion of nutrients contained in compound fertilizers is fixed at present, which cannot fully satisfy all kinds of soils and various types of fertilizers. The requirements of crops need to be adjusted and supplemented with simple fertilizers, and some of them cause excess and waste of individual main elements (one of N, P, and K), which increases manpower and labor costs for farmers and makes farming work difficult. The operation is complicated; 3) At present, there is no compound fertilizer that can greatly increase grain yield and quality, improve soil, improve cold resistance, disease resistance and drought resistance, and make crops mature earlier, so as to adapt to the short frost-free period in the north.