Biological organic slow release fertilizer and preparing method thereof

Abstract

The invention discloses a biological organic slow release fertilizer and a preparing method thereof. The fertilizer is prepared from, by weight, 35-45 parts of calcium magnesium phosphate fertilizer, 20-25 parts of potash fertilizer, 6-12 parts of sodium potassium tartrate, 15-20 parts of glutinous rice flour, 3-4 parts of citric acid, 2-4 parts of polyvinyl alcohol, 15-20 parts of coal gangue, 15-20 parts of decomposed coal, 12-15 parts of medical stone, 8-12 parts of spent mushroom compost, 2-4 parts of carboxymethylcellulose, 4-6 parts of konjac glucomannan, 1-2 parts of sodium selenite, 0.5-1.5 parts of diammonium phosphate, 2-4 parts of ferrous sulfate, 0.5-1.0 part of potassium sulphate, 4-6 parts of germanium oxide and 6-8 parts of xanthan gum. The slow release fertilizer can meet the nutrient requirement of plants in the whole growth period, has long effective period and high water holding capacity, contains nitrogen, phosphorus, potassium and multiplex trace elements, and can achieve nutrient balance. Furthermore, soil loosening can be achieved, soil fertility can be improved, the utilization rate of the fertilizer can be increased, and disease resistance and drought resistance of crops can be improved.

Description

technical field [0001] The invention relates to an organic fertilizer and a preparation method thereof, in particular to a bio-organic slow-release fertilizer and a preparation method thereof. Background technique [0002] Slow-release chemical fertilizers meet the requirements of environmental protection and sustainable social development, and will become the mainstream of agricultural chemical fertilizers in the future and the development direction of agricultural chemical fertilizers in the world; most of the slow-release fertilizers currently on the market are due to their unreasonable nutrient structure ratio and compound nature. Not high, insufficient biological activity, insufficient fertility and other problems, the use effect has not achieved the expected effect, and more chemical fertilizers or organic fertilizers are used in existing agricultural production. The former has low utilization rate, many residues, serious pollution and diminishing fertilizer efficienc...

AI Technical Summary

Problems solved by technology

[0002] Slow-release chemical fertilizers meet the requirements of environmental protection and sustainable social development, and will become the mainstream of agricultural chemical fertilizers in the future and the development direction of agricultural chemical fertilizers in the world; most of the slow-release fertilizers currently on the market are due to their unreasonable nutrient structure ratio and compound nature. Not high, insufficient biological activity, insufficient fertility and other problems, the use effect has not achieved the expected effect, and more chemical fertilizers or organic fertilizers are used in existing agricultural production. The former has low utilization rate, many residues, serious pollution and diminishing fertilizer efficiency. Problems such as long-term application will lead to soil compaction, soil fertility decline, land desertification, and eventually desertification. When applying, there are low nutrients, poor quick-acting performance, and low efficiency, so that crops are defertilized in all stages of vegetative growth and reproductive growth.