What is the reason why peanut leaves suddenly turn white?
What is the reason why peanut leaves suddenly turn white? Please guide that peanuts are temperature-loving crops, heat-resistant, drought-tolerant but not cold-tolerant. The optimum temperature for seedling growth was 26 ℃ ~ 30 ℃, and the lowest temperature was 14 ℃ ~ 16 ℃. The weather is abnormal this year, with temperatures fluctuating from high to low. Some time ago, there has been a substantial drop in temperature in various places, resulting in peanut leaves frozen, showing varying degrees of chlorosis, whitening and even scorching symptoms. When the weather clears up, the symptoms are especially obvious. There is no need to panic when this happens, and there is no need to spray pesticides or fungicides. After the sunny temperature picks up, the peanut leaves will automatically turn green and resume growth. If Tian Da 2116, a cell membrane stabilizer capable of repairing crop freezing injury, is used, or the mixture of rice vinegar, sugar, potassium dihydrogen phosphate and urea is used to spray on frozen peanuts, the growth rate can be restored more quickly. Click to get more peanut planting technology click to get more grain and oil crop planting technology
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How to increase the yield of peanuts
How to prevent and cure early defoliation of peanuts? The main causes of early defoliation of peanuts are as follows: early defoliation and early senescence, and more serious in sandy land; leaf spot, especially net spot and brown spot, spread rapidly once it occurs, often causing a large number of leaves to fall off within a few days; early and excessive spraying regulators, especially.
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How to fertilize peanuts
How should peanuts be fertilized? Please guide that peanuts have strong barren tolerance and a considerable yield can be obtained by applying a small amount of fertilizer. However, in order to rapidly increase peanut yield, scientific fertilization is one of the basic measures. Peanut fertilization should be dominated by organic fertilizer, supplemented by chemical fertilizer; base fertilizer, supplemented by topdressing; seedling fertilizer as topdressing.
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