Special fertilizer for shrimp and rice co-culture and preparation method thereof

Abstract

A special fertilizer for shrimp and rice co-culture comprises three layers of spherical structures which are sequentially coated from inside to outside, namely an inorganic nutrient layer, an organicnutrient layer I and an organic nutrient layer II. A preparation method of the special fertilizer for shrimp and rice co-culture comprises the following steps: preparing the organic fertilizer: mixingpotassium humate, sheep manure, chicken manure, wormcast, a silicon fertilizer and a decomposition agent in proportion, spraying water, fermenting for 30 days, drying in the air and crushing; preparing the inorganic nutrient layer: mixing potassium chloride, ammonium dihydrogen phosphate, urea and calcium peroxide, adding a binder I, and granulating; preparing the organic nutrient layer I: addinginorganic stratified particles into an organic fertilizer and the binder I, and granulating; preparing an organic nutrient layer II: adding an organic fertilizer, an expanding agent and a binder II into the organic nutrient layer I particles, and granulating; and drying the organic nutrient layer II particles to obtain the special fertilizer particles for shrimp and rice co-culture. The fertilizer is good in fertilizer efficiency, high in nutrient utilization rate, capable of remarkably reducing rice diseases and insect pests, large in lobster size, advanced in marketing, simple in preparation method, low in cost and easy to operate.

Description

technical field [0001] The invention relates to a special fertilizer for shrimp and rice co-production and a preparation method thereof. Background technique [0002] With the maturity of breeding technology, the development of logistics, the improvement of people's consumption level, the continuous diversification of food scenes, the promotion of the Internet and the continuous inflow of capital, the popularity of crayfish continues to rise. In recent years, the crayfish farming market has been extremely hot, and even the entire aquaculture market has almost reached the point where no one talks about crayfish. The reason is naturally that more and more people like to eat crayfish. [0003] From the perspective of farming methods, it is mainly divided into three modes: pond farming, rice shrimp mode, and mixed farming. Pond farming mainly mixes river crabs and crayfish together to achieve mutual profits of the two products. At present, the aquaculture area of ​​this model i...

AI Technical Summary

Problems solved by technology

Most of the existing special fertilizers for shrimp and rice focus on the technical point that rice requires inorganic and organic nutrients and do not affect the growth of lobsters. Few special fertilizers for shrimp and rice focus on both safe application and technical issues that promote the growth and development of lobsters and accelerate their market launch. superior

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