How to manage peanuts in the mid-to-late stage? Detailed explanation of the latest technical key points

Peanut is a food that everyone loves to eat very much. It can not only be eaten raw, but can also be made into various small snacks, and it is also very popular in the market. Moreover, peanut is also an oil crop, so there are still quite a lot of people growing peanuts now. When planting peanuts, the mid-to-late stage management of peanuts is very important. So how should peanuts be managed in the mid-to-late stage? Below, the editor will give you a brief introduction. Let's take a look together!

1. Reasonable watering

When peanuts enter the pegging stage and pod-setting stage, we should pay attention to controlling the water content in the field. The maximum water-holding capacity in the soil should be controlled at about 25%, and furrow irrigation and moist irrigation should be the main method. Do not use flood irrigation. Avoid excessive field moisture causing excessive vegetative growth of peanut stems and leaves and the occurrence of rotten pods. During the pod maturity stage of peanuts, if drought occurs, then appropriate light watering should be carried out. During the swelling stage, the water demand of peanuts will increase greatly, but they are also afraid of waterlogging and rotten pods. Therefore, if there is rainy weather, then drainage should be carried out in time. Especially in plots with heavy clay soil and flat terrain, more attention should be paid to waterlogging prevention.

2. Appropriate fertilization

In the mid-to-late stage of peanuts, the growth rate of their stems and leaves is relatively fast. And the plants will flower and peg in large numbers, and the pegs will enter the soil to form pods, so the demand for nutrients will naturally increase somewhat. At this time, if the leaf surface is pale yellow and small, and the leaf veins are green, then nitrogen fertilizer should be supplemented in time. About 18 kg of nitrogen should be applied per mu. If the plant growth is poor and the leaf color is blue-green with curling, then an appropriate amount of diammonium phosphate should be applied as a topdressing. If root function is poor, then potassium fertilizer should be the main focus. Finally, if the plant growth rate is slow and the empty-shell rate is high, then calcium should be supplemented in time.

3. Control stem and leaf growth

In the mid-to-late stage of peanuts, we should control the stem and leaf growth of the plants well and avoid excessive vegetative growth of stems and leaves. Therefore, vine treading should be carried out on sunny days to tread the main stem down, but care should be taken not to break it. Shorten the distance between the pegs and the ground, thereby achieving the purpose of controlling vines and promoting roots. Then, when the main stem of the peanut grows to about 38 cm and the daily growth amount exceeds about 1 cm, an appropriate amount of paclobutrazol, mepiquat chloride and other agents should be sprayed on the leaves to avoid premature leaf senescence and ensure normal growth of peanuts.

4. Hilling soil and weeding

Hilling soil is mainly to thicken the soil layer and advance the time for pegs to enter the soil and set pods. It is suitable to hill soil when the rows close and some pegs have entered the soil. When hilling soil, scrape the soil to both sides of the base of the peanut plants, do not press on the branches and vines, and then hill soil and manure about once every ten days, twice in total. In addition, in the mid-to-late stage of peanuts, because the temperature is relatively high and there is also relatively more rain. Therefore, weeds are prone to grow rampant, which will reduce field ventilation and also absorb a large amount of nutrients and water, affecting pod plumpness, so we should also do a good job in weeding.

The above is a brief introduction to how to manage peanuts in the mid-to-late stage. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!