Vegetable slow-release fertilizer and preparation method thereof

Abstract

The invention discloses a vegetable slow-release fertilizer and a preparation method thereof. The vegetable slow-release fertilizer is of a core-shell structure and comprises a core layer, an inner shell layer and a coating layer, wherein the core layer comprises mushroom dregs, microbial strains, chicken manure and cow dung, the inner shell layer comprises molasses alcohol waste liquid, rare earth elements, peanut bran, plant ash, potassium nitrate, anhydrous magnesium sulfate and urea, and the coating layer comprises guar gum and shellac. The vegetable slow-release fertilizer can promote vegetable growth and fruit coloring, and plant diseases and insect pests in the growth period are avoided.

Description

technical field [0001] The invention relates to the technical field of preparation of slow-release fertilizers, in particular to a slow-release fertilizer for vegetables and a preparation method thereof. Background technique [0002] Vegetables are rich in vitamins, minerals, carbohydrates and other nutrients. They are an important part of the human diet and the basic food for survival. They have the same important status as food in daily life. Compared with other crops, it has nutritional characteristics such as shallow root system, weak absorption capacity, preference for high fertilizer and water, and luxury absorption. Therefore, the amount of fertilizer required for vegetables and the amount of fertilizer applied to vegetable fields are relatively high. Soil is the main place for vegetable growth and provides various nutrients for vegetable growth. However, the nutrient content of the soil is limited, which is not enough to provide all the nutrients for the continuous ...

AI Technical Summary

Problems solved by technology

Although the effect of coated controlled-release fertilizers is better, the coating process is complicated, and the polymer shells remaining in the soil are difficult to degrade, which is easy to cause soil environmental pollution

Third, the research on slow / controlled release fertilizers mainly focuses on nitrogen nutrients, while the research on slow and controlled release of nutrients such as phosphorus and potassium is less

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