Functional enveloped slow-release fertilizer containing amino oligosaccharin and preparation method of functional enveloped slow-release fertilizer

Abstract

The invention provides a functional enveloped slow-release fertilizer containing amino oligosaccharin and a preparation method of the functional enveloped slow-release fertilizer, and relates to the field of fertilizers. The functional enveloped slow-release fertilizer includes outer enveloped layers, inner enveloped layers and fertilizer cores; the fertilizer cores are prepared from the followingraw materials in parts by weight: 30-35 parts of urea, 10-18 parts of ammonium sulfate, 5-8 parts of ammonium dihydrogen phosphate, 12-15 parts of potassium sulfate, 3-5 parts of ammonium nitrate, 6-10 parts of superphosphate, 10-20 parts of plant ashes, 1-5 parts of a mineral fulvic acid, 4-7 parts of medical stone powder loaded niacin/amino oligosaccharin, 50-80 parts of kieselguhr, and 1-3 parts of a synergist; the inner enveloped layers are glucomannan/tea saponin/gamma-polyglutamic acid composite enveloped materials; and the outer enveloped layers are prepared from the composite enveloped materials prepared according to the weight ratio of vinol to methylcellulose being 1:(0.5-5). According to the functional enveloped slow-release fertilizer, the transformation and migration of nutrient elements in soil can be effectively controlled, the loss is reduced, the fertilizer utilization rate is improved, the fertilizer consumption and the planting cost are lowered, and the crop growthrate is greatly promoted.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a functional coated slow-release fertilizer containing amino-oligosaccharins and a preparation method thereof. Background technique [0002] Fertilizer is the food of plants, one of the important substances for the sustainable development of agriculture, and the largest material input in agricultural production. [0003] In the late 20th century, with the rapid growth of the world population, the consumption of food continued to increase, and the application of chemical fertilizers was the most effective measure to increase food production. In the past 50 years, the consumption of chemical fertilizers in global agricultural production has increased rapidly at a rate of 2.5 million tons per year, and it is expected that the demand for chemical fertilizers will continue to increase in the future. my country is a large agricultural country. Since 1992, fertilizer production has been incr...

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Problems solved by technology

Oligochitosan itself is rich in C and N, which can be decomposed and utilized by microorganisms and used as nutrients for plant growth, and it also has anti-virus, anti-bacterial, and fungicidal effects, not only has strong control and protection against fungi, bacteria, and viruses. Eradication,...

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