Biological organic-inorganic large-particle fertilizer and preparation method thereof

Abstract

The invention relates to a long-acting biological organic-inorganic super-large-particle compound fertilizer and a preparation method thereof. The preparation method comprises the steps of: preparing a powdery bulk blended fertilizer by using a commercially-available organic fertilizer or decomposed livestock manure, bacillus polymyxa powder and a long-acting slow-release nitrogen phosphorus fertilizer as raw materials; adding a synergist A, an adsorbent B and an energy substance C into the powdery bulk blended fertilizer; and performing tabletting in a fertilizer extruding machine to prepare the large-particle biological organic-inorganic compound fertilizer in an extrusion state. The long-acting biological organic-inorganic super-large-particle compound fertilizer provided by the invention is prepared by mixing a long-acting compound fertilizer, which is obtained through a reaction of a formaldehyde solution, urea and potassium dihydrogen phosphate, with the commercially-available organic fertilizer and the bacillus powder according to a different proportion, and then extruding the mixture into particles, and is a fertilizer which is capable of not only improving physical and chemical properties of soil but also realizing slow release of nutrients and protecting microbial activity and is convenient to apply and accurate in quantification.

Description

(1) Technical field [0001] The invention relates to a bio-organic-inorganic large-grain fertilizer and a preparation method thereof, in particular to a bio-organic fertilizer inorganic fertilizer capable of improving the physical and chemical properties of soil, increasing nutrient utilization, and possessing nutrient slow-release performance, convenient application, and quantitatively accurate Large-grain compound fertilizer is a new type of fertilizer with high efficiency and environmental protection. (2) Background technology [0002] The application of organic fertilizer is the traditional experience of Chinese agriculture, and it is also the direction of agricultural fertilization in the sustainable development of my country's agriculture in the future. Bio-organic-inorganic compound fertilizer is a "three-fertilizer combination" fertilizer, which combines the advantages of organic fertilizer, inorganic fertilizer and biological fertilizer, and has developed rapidly in ...

AI Technical Summary

Problems solved by technology

[0004] Most of the bio-organic-inorganic compound fertilizers currently produced in my country use local raw materials such as straw, livestock and poultry manure, humic acid, peat, cakes, bone meal, etc., add functional microorganisms, and use fermentation technology to make powder or small particles. There are a series of problems in the production and use of the product: 1. At present, most of the bio-organic-inorganic fertilizer compound fertilizers produced in my country are in the form of powder or small particles, which is inconvenient to apply, especially the powder compound fertilizer, which is easy to cause Flying waste

3. Powdered or small-particle bio-organic-inorganic compound fertilizers have limited ability to adsorb and protect beneficial microorganisms. After the compound fertilizer is applied to the soil, the beneficial microorganisms in it will be diluted by the soil solution, and will be eroded by a large number of indigenous microorganisms in the soil and lose their activity. , thereby losing the physiological effect of biological fertilizers to activate nutrients and enhance plant resistance

4. The production process is relatively complicated, the energy consumption is high, or the production process is not standardized, the fertilizer efficiency is poor, and the activity of beneficial microorganisms is low

Images