Composite organic fertilizer special for fruit trees and preparation method thereof

Abstract

A composite organic fertilizer special for fruit trees belongs to the field of fertilizers, and is prepared from the following raw materials in parts by weight: 20-60 parts of a potassium sulfate type composite fertilizer, 40-55 parts of crop straw, 20-30 parts of livestock and poultry excrements, 0.01-0.03 part of VT-1000 type fermentation bacterial strain, and 0.1-0.3 part of an anti-caking agent. A preparation method of the composite organic fertilizer comprises: mixing livestock and poultry excrements, crop straw and VT-1000 type fermentation bacterial strain according to a ratio, putting into a fermentation tank and performing once fermentation, and then performing stacking fermentation; mixing the materials subjected to biological fermentation with the potassium sulfate type composite fertilizer according to a ratio, stirring, crushing, and performing granulation, baking, cooling and screening, so as to obtain a compound organic fertilizer primary granule; and finally adding the anti-caking agent and performing coating processing to obtain the product. The provided composite organic fertilizer special for fruit trees contains a large amount of organic matters and microbes, has relatively high fertilizer utilization rate during usage, and helps to improve fruit tree quality and yield and improve soil structure.

Description

technical field [0001] The invention belongs to the field of fertilizers, and in particular relates to a special compound organic fertilizer for fruit trees and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, people's living standards are gradually improving, and people's requirements for crop yield and quality are getting higher and higher. Therefore, chemical fertilizers are widely used in agricultural production as a fast and efficient agricultural fertilizer. , effectively improving the yield and quality of crops. However, the utilization rate of chemical fertilizers is relatively low, long-term use causes huge waste, and the nutrient elements of chemical fertilizers are single, often used to cause soil erosion and damage the soil structure. Severe soil erosion reduces the grain production capacity of large areas of land. In the early days of the founding of the People's Republic of China, the organic mat...

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Problems solved by technology

[0003]The utilization rate of chemical fertilizers applied by crops in my country is generally low. The form of gas volatilizes from the plant system of the soil, deamination in the form of N2O and leaching from the soil in the form of ammonium nitrate. Long-term excessive application of chemical fertilizers causes soil nutrient balance imbalance, and the orchard Sustained production capacity is affected, and the further improvement of fruit output and quality is severely restricted

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