Production method of biological carbon-based ecological fertilizer

Abstract

The invention relates to a production method of a biological carbon-based ecological fertilizer. The biological carbon-based ecological fertilizer is prepared from, by weight, 30 to 40 parts of biological carbon, 10 to 30 parts of humic acid, 10 to 20 parts of urea, 5 to 15 parts of ammonium dihydrogen phosphate, 5 to 15 parts of potassium sulphate, 1 to 5 parts of pyroligneous liquid, and 0.5 to 2 parts of trace element. The production method comprises following steps: biological carbon powder and humic acid are mixed at a ratio of 30:25; an obtained mixture is smashed using an edge runner mill, wherein particle size is controlled to be smaller than 0.5mm; the mixture is delivered into a steam drying device for dehydration treatment using a frequency variable screw conveyor, wherein a steam electric heating furnace of 1t and an air storage tank are used for providing a drying heat source, pressure in the air storage tank is controlled to be 10kg, temperature is controlled to be 180 DEG C, vacuum heat preservation is adopted by the air storage tank, steam is stored at night via using of low electricity price at night, and is used in the daytime, steam pressure is controlled to be lower than 1.5kg in pressure relief process, and temperature is controlled to be about 110 DEG C for steam drying.

Description

technical field [0001] The invention relates to the technical field of carbon-based ecological fertilizers, in particular to a production method of biochar-based ecological fertilizers. Background technique [0002] China is a big agricultural country. With the improvement of farmers' living standards, farmers pay more and more attention to the use of organic fertilizers. Since the traditional agriculture in the past few decades has used inorganic or inorganic compound fertilizers, which only pursue high yields and do not pay attention to the protection of the soil ecological environment, the use of such fertilizers for a long time will directly lead to the reduction of the quality of agricultural and sideline products. It has caused soil compaction, decreased fertility, poor tillability, decreased organic matter content, destroyed the adverse effects of soil ecological balance, and caused serious pollution to the soil. On the one hand, the quality of cultivated land is con...

AI Technical Summary

Problems solved by technology

Since the traditional agriculture in the past few decades has used inorganic or inorganic compound fertilizers, which only pursue high yields and do not pay attention to the protection of the soil ecological environment, the use of such fertilizers for a long time will directly lead to the reduction of the quality of agricultural and sideline products. It has caused soil compaction, decreased fertility, poor tillability, decreased organic matter content, destroyed the adverse effects of soil ecological balance, and caused serious pollution to the soil.

On the one hand, the quality of cultivated land is continuously declining due to the lack of scientific and reasonable material inputs; on the other hand, a large number of agricultural, forestry, and industrial biomass resources are being abandoned

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