Compound fertilizer

Abstract

The invention discloses a compound fertilizer comprising straw, weathered coal, peat soil, phosphorite powder, wheat middling, EDTA (Ethylene Diamine Tetraacetic Acid), potassium fulvate, rice hull powder, sweet potato powder, mixed strain powder and urea. The compound fertilizer is capable of increasing yield and improving soil for a long term and inhibiting soil-borne diseases and is low in cost, simple in process and free of residue and pollution, so that the compound fertilizer has a good popularization and application prospect.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to compound fertilizers. Background technique [0002] In agricultural production, inorganic fertilizers occupy most of the market. However, inorganic fertilizers have great deficiencies and defects, mainly in the following aspects: [0003] 1. Destroy the soil, resulting in a decrease in soil organic matter content, an imbalance of various nutrients, soil acidification and compaction, and serious damage to the physical and chemical properties of the soil and soil microbial flora, resulting in poor water retention, fertilizer retention, and air permeability, making it difficult to meet the needs of crops. actual growth needs; [0004] 2. Crops are highly dependent on chemical fertilizers and pesticides, and the amount of use must be increased year by year, otherwise, crops will grow slowly and pests and diseases will be serious, resulting in reduced production; [0005] 3. Th...

AI Technical Summary

Problems solved by technology

[0003] 1. Destroy the soil, resulting in a decrease in soil organic matter content, an imbalance in the proportion of various nutrients, soil acidification and compaction, and serious damage to the physical and chemical properties of the soil and soil microbial flora, resulting in poor water retention, fertilizer retention, and air permeability, making it difficult to meet the needs of crops. actual growth needs;

[0004] 2. Crops are highly dependent on chemical fertilizers and pesticides, and the amount of use must be increased year by year, otherwise, the crops will grow slowly, and the pests and diseases will be serious, resulting in reduced production;

[0005] 3. The agricultural ecological environment is deteriorating. After chemical fertilizers are applied to farmland, the actual utilization rate is only 30% on average. Most of them flow into rivers and lakes with farmland drainage or remain in the soil, plants and crops, which not only brings environmental pollution but also endangers human beings and lives. Safety and health, which have become obstacles to the sustainable development of agriculture