Organic selenium-enriched microbial fertilizer, and preparation method thereof

Abstract

The invention provides an organic selenium-enriched microbial fertilizer, and a preparation method thereof. The organic selenium-enriched microbial fertilizer is prepared from, by weight, 80 to 90 parts of earthworm manure, 0.4 to 0.6 part of sodium selenite, 5 to 7 parts of a composite microbial agent, 0.5 to 1.5 parts of phosphoric acid, 4 to 6 parts of urea, 0.4 to 0.8 part of potassium nitrate, 0.2 to 0.6 part of magnesium citrate, 0.3 to 0.7 part of borax, 0.4 to 0.6 part of copper sulphate, 0.2 to 0.4 part of zinc sulfate, and 0.1 to 0.3 part of calcium oxide. The organic selenium-enriched microbial fertilizer is capable of providing crops with a large amount of activated selenium, is low in toxicity, is capable of improving soil structure, increasing the amount of beneficial microorganisms in soil, and increasing crop quality.

Description

technical field [0001] The invention relates to the technical field of microbial fertilizers, in particular to an organic selenium-enriched microbial fertilizer and a preparation method thereof. Background technique [0002] Selenium is an essential trace element for the human body. It has many immune and biological functions, especially its significant functions in preventing cardiovascular disease, anti-tumor, anti-viral diseases and anti-aging. People's intake of selenium mainly comes from The selenium in crops mainly comes from the soil, and the soil in China is extremely deficient in selenium, which leads to selenium deficiency in the grown crops. At present, the selenium in the soil is mainly supplemented by applying selenium-containing fertilizers, thereby increasing Selenium content in crops. At present, the selenium-rich chemical fertilizers on the market are mainly inorganic selenium fertilizers. Inorganic selenium fertilizers are mainly sodium selenite, etc., whi...

AI Technical Summary

Problems solved by technology

At present, the selenium-rich chemical fertilizers on the market are mainly inorganic selenium fertilizers. Inorganic selenium fertilizers are mainly sodium selenite, etc., which are not only toxic, but also cause local excess or inorganic selenium residues due to uneven mixing. Long-term use It is toxic to humans, animals and plants, and in the absorption and utilization of selenium, organic selenium is greater than inorganic selenium, plant selenium is higher than animal selenium, and organic selenium is more conducive to the absorption of human body. Therefore, bio-organic selenium produced on crops is safer ,More effective

However, the selenium-rich fertilizers currently on the market are mainly inorganic selenium fertilizers, and there are few studies on organic selenium fertilizers.

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