Modified slow-release fertilizer, modified slow-release fertilizer body structure and preparation method

Abstract

The invention discloses modified slow-release fertilizer, a modified slow-release fertilizer body structure and a preparation method, so as to adapt to intensive development of agriculture and forestry in the future, improve later-stage nutrition management efficiency of economic crops adopting topdressing per plant, meet requirement of mechanized operation, reduce labor input and further increaseeconomic benefits. The modified slow release fertilizer is prepared from the following components in parts by weight: 35-45 parts of organic fertilizer, 20-30 parts of calcium-magnesium phosphate, 10-20 parts of potassium sulfate, 2-8 parts of EM (effective microorganism) powder and 10-20 parts of starch. The modified slow-release fertilizer body structure is cylindrical, spherical, rectangular or vertebral. The preparation method of the modified slow-release fertilizer body structure comprises the following steps: (1) mixing and stirring organic fertilizer, calcium-magnesium phosphate, potassium sulfate and the EM powder; (2) putting starch into warm water for stirring to form transparent paste; (3) performing mixing and stirring; (4) pouring a mixture into a mold for molding; (5) performing drying and forming.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to a modified slow-release fertilizer, a fertilizer body structure and a preparation method of the modified slow-release fertilizer. Background technique [0002] At present, in order to achieve the slow-release or controlled-release effect of slow-release fertilizers in the market, the common method is to wrap a film on the outer layer of the fertilizer, and protect the fertilizer inside from being released through this film. However, once the film is damaged , the fertilizer in the film will be released in a short time, the so-called slow release is actually delayed release, not slow release in the strict sense. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a kind of modified slow-release fertilizer, modified slow-release fertilizer body structure, preparation method, to adapt to...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to achieve the slow-release or controlled-release effect of slow-release fertilizers in the market, the common method is to wrap a film on the outer layer of the fertilizer, and protect the fertilizer inside from being released through this film. However, once the film is damaged , the fertilizer in the film will be released in a short time, the so-called slow release is actually delayed release, it is not a slow release in the strict sense

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