Preparation method and application of biochar bacterium fertilizer

Abstract

The invention relates to a preparation method of a biochar bacterium fertilizer. The method comprises the following steps: 1, preparing biochar: carbonizing a raw material under anaerobic conditions, and respectively storing the produced biochar and wood vinegar for later use; 2, preparing carbon a decomposition enzyme and a bacterial community: embedding a medium in soil for the spring, summer and autumn to obtain the carbon decomposition enzyme and the bacterial community, and carrying out group expansion breeding on the obtained carbon decomposition enzyme and the bacterial community to obtain the carbon decomposition enzyme and a biological bacterium dry carrier; and 3, preparing the biochar bacterium fertilizer: crushing 100 parts by weight of the biochar, adding 10-30 parts by weight of the carbon decomposition enzyme and the biological bacterium dry carrier and 5-10 parts of the wood vinegar, adding water until the water content is 50-60%, carrying out anaerobic fermentation for 10-30d to decompose stable elemental carbon in the biochar into 10-50% of water-soluble effective carbon, sieving the prepared fertilizer particles by 8-10 mesh sieve, taking the obtained oversize product, and packaging to obtain the biochar bacterium fertilizer. The water-soluble effective carbon content of the biochar bacterium fertilizer is 5-10 times that of a common organic fertilizer, the biochar bacterium fertilizer combines slow release and quick action, and the fertilizer effect of the biochar bacterium fertilizer is 3-5 times that of the common organic fertilizer.

Description

technical field [0001] The invention relates to organic fertilizers, in particular to a preparation method and application of biochar fertilizer. Background technique [0002] Carbon is the first of the six major elements necessary for plants, accounting for 35% of plant dry matter. The traditional theory believes that plants obtain carbon nutrients from the air through photosynthesis, and plant metabolism is "burning" carbon every moment, so The carbon required by each plant in its lifetime is far greater than the carbon in the dry matter it accumulates. But CO 2 It can only be utilized through leaf absorption and photosynthesis. And studies have shown that plants use CO 2 (When the sun is sufficient), the optimal concentration is 0.1%, while the CO in the natural air 2 The average concentration is only 0.03%. It can be seen that crops are generally short of carbon. There is no photosynthesis in rainy days and nights, and the carbon deficiency of crops is more serious...

AI Technical Summary

Problems solved by technology

[0006] 3. Sub-health: The crops have no obvious symptoms, but they are wilted, slow-growing, thin and weak, or prone to lodging

[0007] 4. Low disease resistance and stress resistance: crops lose their normal resistance to adversity, and have low functions of cold resistance, drought resistance, waterlogging resistance, disease and insect pest resistance, and may cause serious harvest loss

[0008] 5. Germplasm degradation of crops

[0010] 1. Globalization - carbon deficiency diseases may occur in almost all crops regardless of east, west, north or south

[0011] 2. Systemic - not only causing direct crop diseases, but also indirectly caus