Ecological organic fertilizer and preparation method thereof

Abstract

The invention discloses ecological organic fertilizer. The ecological organic fertilizer comprises, by weight, 50-70% of animal dung, 2-5% of probiotics, 15-30% of straw powder and 10-20% of other auxiliary materials. The invention further discloses a preparation method of the ecological organic fertilizer. The preparation method includes mixing the animal dung with appropriate straw powder and the auxiliary materials, adding cultures, feeding the prepared mixture into a stirring machine for uniform stirring, performing solid fermentation, performing drying, smashing, pelleting, screening, low-temperature drying and cooling after a period of fermentation, and packaging a solid to obtain the finished ecological and active organic fertilizer. The ecological organic fertilizer has the advantages that loss of nutrition in the animal dung is avoided after fermentation under the decomposition action of bacteria, transformation from macromolecular nutrients in the dung to micromolecular nutrients is promoted to derive more substances beneficial to crop growth, and fast-acting property of the organic fertilizer is enhanced; odor can be eliminated, harmful pathogenic bacteria in the dung can be killed, and accordingly, harmless treatment standards can be met.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to an ecological organic fertilizer and a preparation method thereof. Background technique [0002] Organic and green food are known as "21st century food" and represent the new trend of contemporary food development. Our country has always attached importance to the role of food on health, the popularization of nutritional knowledge, continuous innovation of products and vigorous publicity of the news media. It makes people pay more attention to the relationship between health and diet, and the requirements for food are developing in the direction of organic, green, nutritional health care, and functional efficacy, and a strong atmosphere of "healthy consumption" has been formed. [0003] With the formulation of some international and national organic standards, developed countries have begun to attach importance to the development of organic agriculture and encoura...

AI Technical Summary

Problems solved by technology

[0005] Poultry manure such as cow dung that has not been decomposed is directly applied to the soil, and it will be fermented with water to generate high temperature, which is easy to burn the roots and seedlings; because harmful microorganisms participate in fermentation and a large number of activities consume oxygen, resulting in soil hypoxia, which will lead to slower growth. Weak crops die; cow manure will produce odor during fermentation, attract fly maggots, endanger crop growth, and the odor can also pollute the environment; manure contains a lot of uric acid, which has not been decomposed and transformed, and it will directly contact seedlings, which will inhibit the growth of crops. Seedling growth; undecomposed manure is fermented in the soil, competing for the original nitrogen nutrient in the soil, causing instantaneous nitrogen deficiency in the soil microenvironment, affecting the growth of seedlings