Nitrogen fertilizer slow release synergist

Abstract

The invention relates to the technical field of nitrogen fertilizer slow release synergists, and in particular relates to a multifunctional slow release synergist for synergism of nitrogen fertilizers. The nitrogen fertilizer slow release synergist comprises dicyandiamide (DCD), thiourea, vitamin B, polyaspartic acid (PASP), fulvic acid, allantoin, salicylic acid, chitosan and an auxiliary material the weight part ratio of which is (10-20): (10-20): (5-10): (5-10): (20-30): (10-15): (3-5): (2-3): (35-50). When used, the nitrogen fertilizer slow release synergist is added to a common fertilizer and a compound fertilizer in a proportion to be mixed so as to prepare the multifunctional slow release fertilizer. The preparation method of the nitrogen fertilizer slow release synergist is convenient and simple, low in cost and wide and available in the raw materials; the fertilizer effect period of the nitrogen fertilizer or the compound fertilizer with the nitrogen fertilizer slow release synergist can be prolonged to 90-120 days, and the fertilizer utilization rate can be improved by 20-30%; and the nitrogen fertilizer slow release synergist has the effects of increasing yield and income, saving fertilizers, labor and resources, improving soils and protecting ecological environments.

Description

technical field [0001] The invention relates to the technical field of slow-release synergists for nitrogen fertilizers, in particular to a slow-release synergist for multifunctional synergistic nitrogen fertilizers, which is suitable for the field of agricultural and forestry production. Background technique [0002] At present, with the gradual growth of our country's population and the continuous improvement of living standards, agriculture is required to continuously increase production and improve product quality. However, my country is a large country in the production and use of chemical fertilizers. Traditional nitrogen fertilizers are prone to leaching and volatilization, so that nitrogen fertilizers have a short fertilizer effect period and low fertilizer utilization efficiency. A large number of tests have shown that the seasonal utilization rate of nitrogen fertilizer in my country is only 25%-33%. A large amount of nitrogen fertilizer lost pollutes soil, ground...

AI Technical Summary

Problems solved by technology

[0005] For above-mentioned situation, in order to overcome the defective of prior art, the object of the present invention just is to provide a kind of slow-release synergist of nitrogen fertilizer, can effectively solve fertilizer utilization rate low, the serious problem of environmental pollution, and the technical scheme of its solution is, by following Parts by weight: 10-20 parts of dicyandiamide (DCD), 10-20 parts of thiourea, 5-10 parts of vitamin B, 5-10 parts of polyaspartic acid (PASP), 20-30 parts of fulvic acid , 10-15 parts of allantoin, 3-5 parts of salicylic acid, 2-3 parts of chitosan, 35-50 parts of auxiliary materials