After the beginning of autumn, the autumn air is warm and the temperature difference between day and night increases, which is conducive to the expansion of pods during the period of pod maturation. Strengthening the management of this stage is the key to seizing the high yield of peanuts. The following four points should be made in production.
1. Drought irrigated row. When peanuts enter the late growth stage, the water consumption of the plants decreases sharply, and the water absorption capacity of the roots weakens. At this time, it is the period when the pods are full and full, and proper soil water is still needed. When it encounters dry weather, it should be watered in time to promote pod grouting; when there is plenty of rain, it should be drained in time. Eliminate waterlogging and prevent rotting phenomenon, so as to increase the rate of fruit filling and ensure high and stable production.
2. Foliar fertilization. For the plot with insufficient base fertilizer or sandy soil, the foliar fertilizer was sprayed about 20 days before harvest, and 1% urea + 0.2% potassium dihydrogen phosphate mixed solution was sprayed, which could be sprayed once every 10 days to improve the photosynthesis of leaves. ,Prolonging the functional period of the leaves and promoting the full filling of the pods has a significant effect.
3. Prevent disease and protect the leaves. In the late stage of peanut growth, peanut brown spot, net spot disease, and leaf spot disease occur frequently, and 50% carbendazim 1000 times solution or 70% thiophanate-methyl 1500 times solution can be used to control and spray every 7 days. Once, spray 2 or 3 times.
4. timely harvest. In the central and southern regions of Hebei Province, mulch spring peanuts are generally harvested in the middle and late August. For early and mid-maturing varieties, timely harvesting should be implemented to prevent commercialization of peanuts and reduce economical benefits.
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