Method and process for preparing selenium-contained organic-inorganic complex fertilizer

Abstract

The invention provides an organic-inorganic compound fertilizer containing selenium as well as a method for manufacturing the organic-inorganic compound fertilizer. The organic-inorganic compound fertilizer containing selenium is manufactured by the method according to the following steps: (1) the creation of a non-polluted organic material composition system as well as a treatment technology: a) the composition of the non-polluted organic material composition system; b) the pretreatment as well as the fermentation of the organic material, including EM, addition of straw-decomposing microorganisms and C / N adjustment; (2) the allocation as well as the allocation requirements for the inorganic fertilizer: a) the main material of the organic material for fully improving the utilization ratio of the fertilizer; b) the enlargement of the nitrogen nutrition and the potassium nutrition and controlling the phosphorus nutrition; c) the control of the amount of chlorine elements and the amount of nitrate; d) the pretreatment of the inorganic fertilizer, which includes crushing and adding middle elements, trace elements and selenium elements; (3) the mixing of the humus of the organic material and the pretreated inorganic fertilizer: a) the addition of granulation auxiliary agent; b) the mixing ratio of the principal ingredients; c) the mixing ratio of the full ingredients.

Description

technical field [0001] The invention relates to a manufacturing method and process of a pollution-free organic-inorganic compound fertilizer specially added with selenium, which can be specially used for the production of economic crops such as tea, fruits, vegetables, and Chinese medicinal materials, and can also be used for bulk food crops such as rice and wheat , corn, etc., not only increase production, but also increase selenium health care on specific crops. Background technique [0002] The development of compound fertilizers is a major trend in the world today, and the proportion of compound fertilizers in the production and consumption of chemical fertilizers is increasing; developed countries can reach 70%-80%, while the development of compound fertilizers in China started late, At present, it only accounts for about 20%, so the development of compound fertilizer is an urgent need for China to speed up agricultural modernization. The so-called compound fertilizer ...

AI Technical Summary

Problems solved by technology

After selenium enters the soil, its bioavailability is also closely related to humus. It has been determined that in soils with high organic matter content, the correlation between water-soluble selenium and selenium absorbed by plants is significant, while in soils with low organic matter content, the correlation is poor.

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