Meat and bone meal organic fertilizer and preparation technology thereof

Abstract

The invention provides a meat and bone meal organic fertilizer and a preparation technology thereof. The preparation technology comprises the following steps: adding agricultural leftovers such as rapeseed cakes, sesame seed cakes, soybean meal and tobacco residues, adjusting the carbon-nitrogen ratio of meat and bone meal, adding caustic calcined magnesite to adjust the pH value of the obtained material, inoculating with a compound fermentation strain and a compound biological enzyme, carrying out sufficient decomposition fermentation in a fermentation tank, and naturally airing, sieving, extrude-granulating, drying and cooling the decomposed mixture to obtain the commercial high-efficiency meat and bone meal organic fertilizer. The organic fertilizer is safe, efficient, green and environmentally friendly, contains 80% or more of organic matters, 8% or more of total nutrients (nitrogen + phosphorus pentoxide + potassium oxide), and 12% or less of water, belongs to a high-end organic fertilizer product, overcomes the defects and deficiencies in the current applications of the meat and bone meal, has a good reference effect on promoting the recycling of agriculture and animal husbandry industries, and also has good economic and social benefits. Field experiments prove that the organic fertilizer has a good application effect.

Description

technical field [0001] The invention relates to the technical field of organic fertilizers, in particular to a meat and bone meal organic fertilizer and a preparation process thereof. Background technique [0002] China is a large country in the livestock and poultry breeding industry, and a large number of sick and dead livestock and poultry are produced every year. Previously, various breeding factories or individual farmers usually used landfill and incineration methods to dispose of them, which not only caused a lot of waste of resources, but also extremely It is easy to cause secondary pollution to environmental sanitation. With the continuous improvement of people's awareness of environmental protection and health, China has begun to attach great importance to the harmless treatment of sick and dead livestock and poultry. Relevant departments have successively issued a series of documents and programs. Encouragement and other measures have pushed the harmless treatment...

AI Technical Summary

Problems solved by technology

At present, the harmless treatment products of sick and dead livestock and poultry in our country, in terms of resource reuse, oil is used in industry, such as making biodiesel, etc.; there are two main ways to use meat and bone meal in fertilizer: the first way is after drying Direct packaging is sold as commercial organic fertilizer. Although this method can maximize the reuse of resources, it also has many defects. The specific performance is: first, the meat and bone meal has not been fully decomposed and fermented, and it does not meet the relevant organic fertilizers in the industry standard. When farmers use it, it is very easy to burn the seedlings and cause fertilizer damage; second, the production is extensive, and the meat and bone meal has not been fully inspected for fertilizer nutrient indicators, and the nutrients required by the plants have not been scientifically compounded, resulting in the inability to obtain the fertilizer effect of meat and bone meal Fully released and utilized; third, there are potential safety hazards in the circulation field. Due to the lack of fertilizer compounding, some meat and bone meal will be circulated to the feed industry in violation of regulations, and illegal activities will be carried out.

The second way is to use meat and bone meal as an additive to organic fertilizers. The amount of addition is generally between 3% and 5%. This method has a small amount of meat and bone meal and cannot effectively meet the treatment requirements for meat and bone meal in the harmless industry of sick and dead livestock and poultry.

[0004] The research results show that the meat and bone meal after the harmless treatment of dead livestock and poultry contains rich protein, various amino acids and medium and trace elements needed by plants, and is a good raw material for preparing high-end organic fertilizers. However, the current application and research of meat and bone meal It only stays at the stage of extensive application and basic experiments, and has not yet formed industrialization

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