A kind of preparation method of mycorrhizal biological fertilizer

Abstract

The invention discloses a biofertilizer for mycorrhizae and a preparation method. The preparation method comprises the following steps: (1) sieving vermiculite; (2) grinding branches and fallen leaves, and sieving the powder; (3) sterilizing the sieved vermiculite and the ground branches; (4) proportionally mixing cooled vermiculite with cooled ground branches, and mixing the mixture with an MMN liquid medium; (5) filling the MMN liquid medium into a polyethylene culture bag; (6) inoculating various ectomycorrhizal fungi; (7) carrying out light-tight culture in a greenhouse or an incubator; (8) mixing with biological activated carbon, organic fertilizers, a biological water-retaining agent and bioactive growth promoting components; (9) packaging and storing. Compared with existing biofertilizers, the biofertilizer disclosed by the invention can obviously improve various nutrient element absorbability of plant root systems, promote growth of seedlings, simultaneously improve the tolerance of plants to environments such as drought, saline and alkaline environments, infertility and the like and the capacities of the plants in resisting soil-borne diseases and pests, activate beneficial microorganisms in rhizosphere soil, enhance photosynthesis, improve the carbon fixation capacity of the plants, optimize the quality of the seedlings and increase the market value.

Description

technical field [0001] The invention relates to an active chemical fertilizer, in particular to a preparation method of mycorrhizal biological fertilizer. Background technique [0002] Mycorrhizal fertilizer is a new type of high-efficiency, non-toxic, green and non-polluting biological fertilizer, which can meet the production of agricultural and forestry products and protect the ecology, and has broad market prospects. [0003] Since the German plant pathologist Frank coined the term mycorrhizae in 1885, the research on mycorrhizae has a history of more than 100 years. Mycorrhizal fungi have a huge mycelium system, and are closely connected with plant roots to form mycorrhizae. They are the most widely distributed and most important type of symbiont in the biological world. Energy, information exchange and transmission are of great significance. At the same time, it has far-reaching economic, social and ecological significance for maintaining ecological balance and susta...

AI Technical Summary

Problems solved by technology

Foreign bacterial fertilizer technology is relatively mature and has been promoted and applied in many fields. However, the soil conditions and commonly used greening tree species in foreign countries are very different from those in my country. etc., and whether it will cause environmental problems such as ecological invasion is also unknown

In addition, it is expensive and difficult to promote in my country's landscaping

[0008] The Pt mycorrhizal agent developed by the Chinese Academy of Forestry—Zhijianbao has a single species, and the effective bacteria are mainly puffballs. The scope of application is narrow, and it cannot meet the huge demand for landscaping.