How to prevent peanut brown spot disease
1. Reasonable rotation, peanut brown spot disease only infects peanuts, so choose to carry out 2-3 years of rotation with other crops, which can effectively reduce the residual bacteria in the soil and reduce the damage to peanuts.
2, planting peanuts need to select excellent varieties with strong disease resistance for planting, in order to reduce the incidence of brown spot disease. Reasonable close planting, strengthening field management, application of organic fertilizer should be fully decomposed and applied in the field, which can effectively reduce the source of pathogens in the field. Add phosphorus and potassium fertilizer to avoid partial application of nitrogen fertilizer, and discharge water in the field after rain to reduce the humidity in the field and reduce the growth of bacteria.
3. It is found that the diseased plants in the field should be removed in time and brought out to burn out in the field, sprayed with targeted drugs for prevention and treatment, and sprayed 2-3 times according to the incidence of brown spot disease, combined with photosynthetic nutrient film fertilizer to help plants. Absorb light energy and restore peanut vitality as soon as possible.
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