Bone meal carbon-base organic fertilizer and preparation method thereof

Abstract

The invention discloses a bone meal carbon-base organic fertilizer which is prepared from the following materials in parts by weight: 30-50 parts of animal bone meal, 40-55 parts of biological carbon, 7-10 parts of urea and 3-5 parts of adhesive. The invention also discloses a preparation method of the bone meal carbon-base organic fertilizer. The bone meal carbon-base organic fertilizer contains abundant livestock / poultry bone nutrient substances but has low organic content, and the biological carbon has higher carbon content; the combination of the bone and biological carbon complement the mutual advantages; and thus, the organic content achieves the national standard content of greater than or equal to 45%, and the nitrogen / phosphorus / potassium content is greater than or equal to 5%, thereby enhancing the disease resistance of crops and having strong alkaline land improvement effects. The biological carbon has the effect of improving acidified soil, and is capable of solidifying soil heavy metal and lower the crop absorption and accumulation quantity. The pulverization fineness of the animal bone and biological carbon can easily satisfy the granulation particle size requirement for the rotating drum. The animal bone and biological carbon are low in cost and easy to acquire. The preparation technique is simple and is convenient for large-scale production.

Description

technical field [0001] The invention relates to the field of organic fertilizers, in particular to a bone meal carbon-based organic fertilizer and a preparation method thereof. Background technique [0002] my country is the world's largest meat consumer. According to statistics, from 1978 to 2009, my country's total meat output has increased from the original 9 million tons to 76.42 million tons. The weight of livestock and poultry bones accounts for about 20-30% of animal body weight. . In recent years, with the rapid development of my country's livestock and poultry breeding industry, the output of livestock and poultry meat has increased year by year, and the output of its by-product livestock and poultry bones has also increased rapidly, and nearly 20 million tons of livestock and poultry bones are produced every year. At present, the consumption of livestock and poultry in my country is mainly concentrated in the consumption of livestock and poultry meat. The bones of ...

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Problems solved by technology

However, the direct return of straw to the field has a slow decomposition rate. Especially in the northern region, the return of straw to the field may also affect the emergence rate of crops, reduce crop yield, and limit the rate of straw return to the field.