Organic-inorganic compound fertilizer and preparation method thereof

Abstract

The invention discloses an organic-inorganic compound fertilizer and a preparation method thereof. The organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 25-30 parts of green algae, 12-17 parts of humic acid, 7-12 parts of bagasse mortar, 8-12 parts of saw dust, 7-15 parts of vermiculite, 5-10 parts of filtration mud, 5-10 parts of yeast organic waste water concentrated liquid, 5-8 parts of cane slag, 2-5 parts of sugarcane top and 2-5 parts of microbial strain liquid. The amount of the compound fertilizer organic matter is large than or equal to 55 weight parts, the total amount of NPK inorganic matters is large than or equal to 12 weight parts, the amount of the moisture is less than or equal to 25 weight parts, the effective viable count is large than or equal to 2 hundred million / gram, and the pH is 5.0-8.5. The preparation method comprises the following steps: fermenting twice by using microbial strains; adding inorganic porosity vermiculite, evenly mixing, and naturally drying so as to obtain the organic-inorganic compound fertilizer. Biodegradable agricultural and industrial production waste water, waste slag and sugarcane top regeneration organic matters are fully utilized as the raw materials, thereby improving the acidity and basicity of soil, improving the cation exchange capability (CEC) of the soil, improving the utilization of fertilizer, promoting the growth of crop and increasing the yield of the crop. The organic-inorganic compound fertilizer has the advantages of good ecological benefits and circular economy benefits and can be used as an additional fertilizer for crops such as sugarcane, watermelon and the like.

Description

technical field

[0001] The invention belongs to the technical field of fertilizer production, and relates to an organic-inorganic compound fertilizer and a preparation method thereof. Background technique

[0002] A large amount of filter mud is produced in the process of sugar extraction in a cane sugar mill. The filter mud is rich in protein, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and other elements and a large amount of organic matter, which will emit an unpleasant odor. People often discard it, or discharge it into rivers, or fill it up Buried in pits and ponds will cause serious environmental pollution over time. In the production process of alcohol factory, monosodium glutamate factory and yeast factory, a large amount of yeast wastewater is produced. The wastewater is rich in organic substances, dark in color, and has a very high chemical oxygen consumption. It is prone to foul odors, and direct discharge will cause serious environmental polluti...