The main damage to the base of the stem or near the ground neck. Prevention methods are as follows:
1 Agricultural measures: Implement crop rotation. Ploughing sun soil 25 days before sowing, using adequately decomposed organic fertilizer. According to local conditions, timely sowing of the sowing date should not be too early. Sorghum or high ridge cultivation methods should be used.
2 Chemical control: In the initial stage of disease, spray 72% of agricultural streptomycin-sulfuric acid soluble powder 3000-4000 times solution, or 14% colubrate ammonia-copper water solution 300 times, 8 to 10 days, spray 2 or 3 times.
1 Agricultural measures: Implement crop rotation. Ploughing sun soil 25 days before sowing, using adequately decomposed organic fertilizer. According to local conditions, timely sowing of the sowing date should not be too early. Sorghum or high ridge cultivation methods should be used.
2 Chemical control: In the initial stage of disease, spray 72% of agricultural streptomycin-sulfuric acid soluble powder 3000-4000 times solution, or 14% colubrate ammonia-copper water solution 300 times, 8 to 10 days, spray 2 or 3 times.
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