Farmers have recently reported that the peanuts planted suddenly have white leaves. Do you not know that it is something?
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Peanuts are hi-temperature crops that are heat- and drought-tolerant but not cold-resistant. The optimum temperature for seedling growth is 26-30°C, and the minimum temperature is 14-16°C. Below the minimum temperature, peanut growth will stop. If the temperature is below 10°C, the peanut leaves will be frozen. This year's climate is abnormal and the temperature is high and low. Some time ago, there have been significant cooling in various places, the temperature suddenly dropped from above 20 °C to 10 °C or less, resulting in frostbite peanut leaves, there are different degrees of chlorosis, blanching or even coke dry symptoms. After sunny days, the symptoms are particularly evident.
Because the whitening of peanut leaves is not caused by pathogens or pests, farmers need not panic and do not have to spray insecticides or fungicides. After the sunny temperature rises, the peanut leaves will automatically turn green and grow. If Tianda 2116, a cell membrane stabilizer with the ability to repair crops with freezing damage, is used, or if rice vinegar, sugar, potassium dihydrogen phosphate, and urea are mixed together to apply foliar spray to frozen peanuts, the recovery will be faster.
Peanut leaves suddenly turn white?