Recently, some farmers have reported that the peanuts planted suddenly have white leaves. I don’t know what is going on?
Peanuts are thermophilic crops that are heat and drought tolerant but not cold. The optimum temperature for seedling growth is 26-30 °C, and the lowest temperature is 14-16 °C. Below the minimum temperature, peanut growth will stagnate. If the temperature is below 10 ° C, the peanut leaves will be frozen. This year the climate is abnormal and the temperature is high and low. Some time ago, there was a significant cooling in various places. The temperature suddenly dropped from below 20 °C to below 10 °C, causing frostbite in peanut leaves and different degrees of chlorosis, whitishness and even scorch. After the weather, the symptoms are particularly obvious.
Because the whitening of peanut leaves is not caused by germs or pests, farmers do not have to panic, and do not need to spray insecticides or fungicides. After the temperature rises, the peanut leaves will automatically turn green to resume growth. If you use a cell membrane stabilizer that has the ability to repair crop damage, Tianda 2116, or use a mixture of rice vinegar, white sugar, potassium dihydrogen phosphate, and urea to spray the frozen peanuts to restore growth faster.
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