Method for producing water-soluble fertilizer by using shells

Abstract

The invention discloses a method for producing a water-soluble fertilizer by utilizing shells, and aims to solve the problem of shell utilization of an existing fertilizer. The preparation method comprises the following specific steps: step 1, uniformly mixing shell powder, an organic matter, a compound fermentation inoculant and water according to a weight ratio of (26-50): (29-45): (0.4-0.7): (18-27), performing aerobic fermentation, ensuring that the mass fraction of oxygen in the materials is not less than 5% during fermentation and obtaining a fermentation product; and step 2, adding water which is 0.25-0.33 time of the weight of the fermentation product into the fermentation product, carrying out stirring until water-soluble components of the fermentation product are completely dissolved, and then, carrying out filtering to obtain filtrate, namely, the water-soluble fertilizer. Through a biological fermentation method, the nutrient elements necessary for plant growth and development in water-insoluble shells are converted into water-soluble organic components, and the water-soluble fertilizer is prepared. Through the biological fermentation method, residues obtained after water-soluble medium trace elements are prepared from the shells are combined with multiple functional bacteria, and multifunctional soil conditioners and the biological fertilizers are prepared.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a method for producing water-soluble fertilizers by using shells. Background technique [0002] With the advancement of science and technology, people began to improve fertilizers, and people added many new materials, and shells are one of the common ones. [0003] Shells were first used as fertilizers by simply crushing shells and applying them directly to the soil. Later, some fertilizer manufacturers crushed shells and added them to organic fertilizers to form organic fertilizers containing shells. Some also directly crushed shells to make powdery or granular soil conditioners, and some manufacturers calcined shells to make powdery or granular soil conditioners. These application technologies are all rough processing of shells. The first three methods are simple changes in the physical form of shells, which cannot make the nutrient elements in the shells form an ion state that is e...

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Problems solved by technology

Later, some fertilizer manufacturers crushed shells and added them to organic fertilizers to form organic fertilizers containing shells. Some also directly crushed shells to make powdery or granular soil conditioners, and some manufacturers calcined shells to make powdery or granular soil conditioners. These application technologies are all rough processing of shells. The first three methods are simple changes in the physical form of shells, which cannot make the nutrient elements in the shells form an ion state that is effective for crops; the fourth method is through calcination. , causing chemical changes in the substances in the shells, but formed strong alkaline calcium oxides, which are only suitable for the improvement of acidic soils, and did not maximize the release of the rich micronutrients in the shells in the current season , so it also restricts the pace of high-quality utilization of shells

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