Preparation method of soil microbial remediation fungicide for salinized soil

Abstract

The invention discloses a preparation method of a soil microbial remediation fungicide for salinized soil. The preparation method comprises the following steps: step 1, preparing a first composite fungicide and a second composite fungicide; step 2, performing enlarged culture on a salt-tolerant fungus strain; step 3, preparing a coating agent; step 4, mixing furfural residues with mushroom dregs, and performing crushing; step 5, fermenting a first composite fungicide; step 6, performing high-temperature fermentation; step 7, mixing plant ash with bentonite; step 8, mixing the second composite fungicide, and performing low-temperature oxygen consumption stacking fermentation; step 9, performing granulating; step 10, performing vacuum low-temperature drying and screening; and step 11, uniformly scattering a chelating agent and a nitrification inhibitor on the surfaces of the granules, and performing coating. The problems that in the prior art, a salinized soil remediation microbial agent prepared from plant ash, furfural residues and mushroom dregs does not contain various active microorganisms with different functions, the colonization survival performance of the microorganisms is low, and the disease prevention and insect prevention effects are not achieved can be solved.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a method for preparing field crop yield-increasing and insect-resistant biological bacterial fertilizers. Background technique [0002] Plant (herbaceous and woody plants) residues after burning, called plant ash. Because plant ash is the ashes of plants after burning, plant ash contains almost all the mineral elements contained in plants. Among them, potassium is the most abundant element, generally containing 6-12% potassium, of which more than 90% is water-soluble and exists in the form of carbonate; followed by phosphorus, generally containing 1.5-3%; it also contains calcium, magnesium, silicon, Sulfur and iron, manganese, copper, zinc, boron, molybdenum and other micronutrients. Therefore, it is a natural fertilizer with a wide range of sources, low cost, complete nutrients and obvious fertilizer efficiency. However, because plant ash is alkaline, it cannot be mixed ...

AI Technical Summary

Problems solved by technology

The reason lies in: the rapid development of modern facility agriculture, the planting area continues to expand, vegetable farmers do not have a comprehensive understanding of the role and impact of various fertilizers on plant growth and development, blindly use chemical fertilizers, and ignore the use of organic fertilizers. It is mainly manifested in the following aspects: First, the vegetable fertilization level in the greenhouse is relatively high, especially some farmers apply excessive fertilizer in order to pursue the yield. Generally, the amount of chemical fertilizer applied in the annual vegetable production is more than 250kg / 666.7m2, which intensifies the deterioration of the greenhouse soil. Salinization causes soil compaction and poor growth of vegetable roots, which affects the growth of vegetables

The second is to ignore the use of organic fertilizers and use unripe organic fertilizers

3. Pollution to groundwater The formation of secondary salinization of soil has brought many impacts on groundwater to a large extent

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