A field planting method for preventing and treating tobacco bacterial wilt

Abstract

The invention discloses a field planting method preventing a tobacco bacterial wilt disease. The method comprises the steps of 1, sowing tagetes erecta, wherein tobacco filed land preparation, fertilizer applying, ridge forming and film covering are conducted according to a normal technology 15-25 days before tobacco transplanting, then the tagetes erecta is sowed among tobacco ridges; 2, applying transplanting water with ethylicin, wherein ethylicin and the transplanting water are diluted according to the weight ratio of 1:2,000-1:3,000 to prepare the ethylicin transplanting water, root-irrigation is conducted during tobacco transplanting, and 1.00 kg of the ethylicin transplanting water is applied to each tobacco seedling during root-irrigation; 3, applying dowry soil with tagetes erecta rootstalks, wherein during tobacco transplanting, after the ethylicin transplanting water is applied during root-irrigation, 1.00 kg of the tagetes erecta dowry soil mixture is applied to each tobacco seedling; 4, conducting thinning on tagetes erecta, wherein it is ensured that at least four strains of tagetes erecta are interplanted beside each tobacco seedling, and the tagetes erecta is interplanted at the two sides of the tobacco ridge. According to the field planting method preventing the tobacco bacterial wilt disease, happening of the tobacco bacterial wilt disease is put off, the disease degree is obviously relieved, the tobacco quality can be improved, the yield and output value are increased, and the method is suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of biological control of plant diseases, and in particular relates to a field planting method for preventing and treating tobacco bacterial wilt. Background technique [0002] Bacterial wilt, caused by Ralstonia solanacearum, is considered the most serious soil-borne disease on tobacco (Nicotiana tabacum). The disease occurs in many tobacco-growing countries with humid tropical or humid warm temperate zones. In my country, tobacco scientific and technological workers have been committed to the research on the prevention and treatment of tobacco bacterial wilt. Traditional chemical control methods not only have high costs, heavy pollution, and damage to soil ecology, but also cause excessive residues of harmful substances. Although biological control overcomes the above-mentioned shortcomings of chemical control, and research and practice have proved that it has a certain control effect on tobacco bacterial...

AI Technical Summary

Problems solved by technology

Traditional chemical control methods not only have high costs, heavy pollution, and damage to soil ecology, but also cause excessive residues of harmful substances

Although biological control overcomes the above-mentioned shortcomings of chemical control, and research and practice have proved that it has a certain control effect on tobacco bacterial wilt, the control effect of biological agents is generally slow, and its effective active ingredients are relatively complex, which is easily affected by environmental factors. Restriction and interference, with short validity period, poor quality stability and other disadvantages

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