Deep plowing in winter is an important technical measure to increase the yield of peanuts, and the increase rate is generally above 10%. The benefits are:
The soil improvement adopts traditional farming techniques, ploughing and plowing year after year, which will form a relatively compact plow bottom at a distance of 20 cm from the ground, which affects the expansion of the root system and hinders the absorption of nutrients and water. Deep ploughing in winter can break the bottom of the plough, thicken the mature soil layer, and pass the turned over raw soil through a winter of natural weathering, so that the organic matter and minerals that are not easily absorbed by crops can be transformed and decomposed, and soil fertility can be enhanced.
Pest control is through deep turning, turning the seeds of pests, germs and weeds in the deep layers of the soil to the surface and being frozen, dried out or pecked by natural enemies, so that the buried pests, germs and weed seeds cannot be normally unearthed. Suffocation, thereby reducing the overwintering base and reducing the harm in the coming year.
The soil surface is uneven after plowing, which is conducive to receiving winter and spring rain and snow, so that more water is accumulated in the deep layer of the soil, ensuring sufficient bottom moisture during sowing, and conducive to timely sowing, early emergence and seedling growth of peanuts.
It should be noted that the earlier the winter plowing time, the better. Generally, it is necessary to hurry up after the previous crops are harvested and finish tilling before the ground is frozen (the frozen soil layer exceeds 5 cm) to extend the weathering time and improve the pest control effect. Conducive to more rain and snow.
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