Biological compound fertilizer and preparation method thereof

Abstract

The invention discloses compound fertilizer. The compound fertilizer is prepared from raw materials in parts by weight as follows: 50-55 parts of fishpond sludge, 10-18 parts of distiller's grains, 25-40 parts of animal manure, 22-28 parts of lignin, 12-20 parts of oil cakes, 20-25 parts of straw, 5-8 parts of waste edible fungus culture media, 5-8 parts of ammonium sulfate, 3-7 parts of monopotassium phosphate, 6-10 parts of calcium superphosphate, 3-5 parts of traditional Chinese medicine composition and 3-6 parts of microelements. The invention also provides a preparation method of the compound fertilizer.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a biological mixed fertilizer and a preparation method thereof. Background technique [0002] Roots, tubers, and plants that eat underground parts are very susceptible to pests and diseases. At present, chemical fertilizers used to prevent pests and crops in agriculture are mainly mixed with chemical agents and toxic pesticides, and then applied to the soil or crops for a long period of time year after year. The use of a large amount of pesticides and chemical fertilizers leads to the development of drug resistance of pests, soil compaction, pollution of water sources, soil and crops, decline in the quality of agricultural products, and excessive pesticide residues, seriously affecting people's physical and mental health and the competitiveness of my country's agricultural products in the international market. [0003] In addition, the current average utilization rate of compound fertilizers is low...

AI Technical Summary

Problems solved by technology

[0002] Roots, tubers, and plants that eat underground parts are very susceptible to pests and diseases. At present, chemical fertilizers used to prevent pests and crops in agriculture are mainly mixed with chemical agents and toxic pesticides, and then applied to the soil or crops for a long period of time year after year. The use of a large amount of pesticides and chemical fertilizers leads to the development of pesticide resistance of pests, soil compaction, pollution of water sources, soil and crops, decline in the quality of agricultural products, and excessive pesticide residues, seriously affecting people's physical and mental health and the competitiveness of my country's agricultural products in the international market.

[0003] In addition, the current average utilization rate of compound fertilizers is low, the loss of nutrients is serious, and it is easy to cause pollution to groundwater and rivers and lakes; conventional fertilizers are generally not easy to control the release rate of each nutrient, so that the release rate can be synchronized with the progress of crops absorbing fertilizer, so if Applying a large amount of fertilizer at one time is easy to cause burnt seedlings at the seedling stage, and it is often difficult to apply fertilizer multiple times due to the limitation of human cultivation conditions, resulting in poor growth of crops due to lack of fertilizer

At present, the utilization rate of nitrogen, phosphorus, and potassium is low. In addition to the poor control of the rate of use of fertilizers used in general chemical fertilizers, the main reason is that nitrogen, phosphorus, and potassium cannot be better absorbed by plants.