A method for repairing peanut continuous cropping obstacles based on allelopathic autotoxicity

Abstract

The invention relates to a method for repairing continuous cropping obstacles of peanuts based on an allelopathic autotoxicity effect. The preparation method comprises the following steps: (1) seed dressing treatment is carried out by adopting a compound microbial agent in a peanut seeding period; the compound microbial agent comprises streptomyces tenebrarius and a synergist, wherein the synergist is a mixed solution of difenoconazole and a thiram solution diluted by 1000-2000 times, and the ratio of the difenoconazole to the thiram solution is 1:5-5:1; and the using method is seed dressing;and (2) a compound bacterial fertilizer is applied to holes in a peanut seedling period, and puddling is carried out; the bacterial fertilizer comprises 30-70 parts of sheep manure and 30-70 parts ofwormcast, and the usage amount of a microbial inoculum is 0.05-0.1%; and the microbial inoculum consists of 40-60 parts of streptomyces tenebrarius and 40-60 parts of yeast, and hole application treatment is carried out during seeding, 20-30 g of the compound bacterial fertilizer is applied to each hole, and the compound bacterial fertilizer is stirred and mixed with soil in the holes. The methodhas the beneficial effects that the emergence rate and the survival rate of peanuts are greatly improved. The sheep manure, the wormcast and the streptomyces tenebrarius are adopted for fermentation,so that the efficacy of the wormcast is supplemented by the sheep manure. The streptomyces tenebrarius is bred in the bacterial fertilizer, so that the production of a peanut root system is facilitated, and the influence on continuous cropping obstacles is eliminated.

Description

technical field [0001] The invention relates to the field of repairing continuous cropping obstacles, in particular to a method for repairing peanut continuous cropping obstacles based on allelopathic autotoxicity. Background technique [0002] Peanut is one of the five largest oil crops in the world, and it is an oil crop that is both edible and oil-extracting. According to statistics, the total area of ​​peanut planting in my country is 437.67×10 4 hm 2 , accounting for 20.4% of the world's total area, second only to India and ranking second in the world; the total output reached 1470.79×10 4 t, accounting for 40.8% of the world's total output, ranking first in the world. Due to the large number of people in our country and the lack of land, and the excessive pursuit of higher planting benefits by growers, continuous cropping of peanuts is common, but peanuts are one of the crops that are not suitable for continuous cropping. In the main peanut producing areas of our c...

AI Technical Summary

Problems solved by technology

Some chemical fungicides can only prevent and control pathogenic bacteria in peanut soil and diseased residues, but cannot degrade and transform autotoxic substances and easily cause pesticide residues, deteriorate soil physical and chemical properties, and destroy soil microbial structure

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