Fermented cake fertilizer, its preparation method and application

Abstract

The invention discloses a fermented cake fertilizer, its preparation method and application. The invention overcomes the defects of the prior art and provides a fermented cake fertilizer which is suitable for tobacco growth. The fermented cake fertilizer is characterized in that a bean cake is subject to microbial strain fermentation, then macro-molecular compounds in the cake fertilizer are converted into micro-molecular compounds, nitrogen in protein is converted into amino acid to release nitrogen in the cake fertilizer in advance, thus the releasing rule of nitrogen is consistent with the nitrogen absorption rule of tobacco; and microbes generate protease in the process of growth, fermented materials are put in water, protease converts protein in the bean cake into amino acid or micro-molecular nitrogen containing compounds, plants can directly adsorb amino acid, or the micro-molecular nitrogen containing compounds are easy to be converted into absorbable nitrogen of plants in soil. According to the invention, the purpose of improving the tobacco quality can be achieved, and simultaneously the effects of increasing soil biological activity, improving soil structure, and raising soil fertility are achieved.

Description

technical field [0001] The invention relates to a fermented cake fertilizer, its preparation method and application, in particular to a fermented cake fertilizer used for tobacco leaf production, which belongs to the field of fertilizer processing. Background technique [0002] A large number of domestic research results show that cake fertilizer (bean cake, rapeseed cake, peanut cake) has the effect of improving the quality of tobacco leaves, increasing the oil content of tobacco leaves, increasing the aroma of tobacco leaves, coordinating chemical components, and increasing the industrial availability of tobacco leaves. The only sure organic fertilizer in tobacco leaf production. The usual method of application of cake fertilizer is to apply soybean (bean cake) after simple composting and fermentation. The fermentation process is mainly to soak the cake fertilizer in water or heat it, then apply it after stacking and natural fermentation for 7-30 days. 10-15 kg. Tobacco ...

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Problems solved by technology

[0003] However, the current application of common cake fertilizers has the following disadvantages: (1) Since cake fertilizers are organic fertilizers, their transformation in the soil is slow, and during the release of nitrogen in the cake fertilizers, the tobacco leaves have already begun to mature, so there is no need for excessive nitrogen fertilizer supply from the soil In this way, the maturity of tobacco leaves in the field is affected after the application of cake fertilizer, especially when the amount of cake fertilizer is too high, it will cause the tobacco leaves to become green and mature late, which will reduce the quality o

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