How to prevent and cure the rotten roots of peanuts?
There are generally two reasons for peanut root rot: one is water stains, and the other is root rot. Prevention and control should first remove waterlogging, keep the ditch unblocked, and before sowing peanuts, coat the seeds with 10% Shile, and irrigate the roots with 1000 times of Luheng No. 1 or No. 2 after the disease, foliar spray is ineffective. Crop rotation was carried out in mildly diseased fields every other year and for 3-5 years in seriously diseased fields. Deep ploughing to improve soil, increase the application of organic fertilizer, reasonable drainage and irrigation to enhance disease resistance.
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Prevention and Control techniques of Peanut waterlogging
The occurrence of peanut waterlogging is due to low-lying terrain, heavy soil and poor drainage; second, in the season of long rainfall or excessive rainfall, there is excess surface water and groundwater, which can not be discharged temporarily. According to the characteristics of water requirement for peanut growth and development, the soil relative humidity at peanut seedling stage is 50%-60%.
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Heavy Control of Bacterial Wilt in Peanut Flowering and Needle Falling Stage
Peanut bacterial wilt is a devastating disease. Once infected, the whole plant dies and cannot be cured. During flowering and needle dropping period of peanut is the outbreak period of bacterial wilt, during which attention should be paid to spraying control. Specific control methods: When peanuts begin to bud, spray 1500 times 70% hymexiline solution on leaves every 10~15 days.
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