What are the latest key factors affecting peanut yield?
In China, peanuts are not only a very common food crop but also an important oil crop. They are basically grown all over China, and when growing peanuts, everyone certainly pays close attention to yield. But sometimes the peanut yield is not very ideal. So what are the key factors affecting peanut yield? Today the editor will give you a brief introduction, so let's take a look below!
1. Scorched seedlings and overly dense planting
When growing peanuts, if planting is too late and the temperature is too high when the peanut seeds emerge, and the grower does not do a good job of helping the seedlings break through the soil, peanut seedlings are very likely to be scorched, which affects peanut growth and causes peanut yield to decline. In addition, when planting, if the planting is too dense or the ridge surface is too small, the peanut plants will be too close to each other. This leads to poor development of the peanut plants, with slender branches and stems, and makes the one-sided pod phenomenon likely to occur. The pods in the middle of the plants are also small and few, naturally causing a reduction in peanut yield.
2. Improper management
Peanut pegs generally set fruit after entering the soil. Therefore, at the early flowering stage of peanuts and before the rows close, attention should be paid to doing a good job of intertillage, at least about two times of intertillage, and then soil should also be properly banked up to improve soil moisture. However, many people often neglect intertillage and soil banking, which makes it difficult for peanut pegs to enter the soil, resulting in few pods and insufficient yield. Then, in places with excessive branches and leaves and high soil fertility, peanut tillering tends to be excessive. If pruning is not done in time, there will be too many branches and leaves, which will compete for the nutrients needed for the growth of the main peanut branches, ultimately leading to a large number of shriveled pods and a decline in yield as a result.
3. Unsuitable water and fertilizer
When growing peanuts, the management of water and fertilizer is also very important. When fertilizing, if nitrogen fertilizer is applied alone in a one-sided way or soil testing and formula fertilization is not done properly, it is very easy to cause excessive vegetative growth of peanut stems and leaves. The stems will also be very thin and weak, which not only affects the pod-setting and pod-filling rate of peanuts but also makes them very prone to lodging. In addition, if field drainage and irrigation are poor, for example if the ridge furrows and middle furrows are not rationally matched, it is very easy to cause serious waterlogging in the field. This leads to poor peanut development, and not only are the fruits small, but shriveled pods and rotten pods are also likely.
4. Soil and chemical reasons
After the peanut harvest, we should pay attention to doing a good job of intertillage and cleaning the field. If deep plowing and ridge drying are not carried out in time in winter, weeds will increase after the new year and the soil will be too compacted. This causes the soil to consume too many nutrients and results in poor aggregate structure, which is very unfavorable for peanut pegs to penetrate the soil and set pods. There is also improper spraying of chemicals. When growing peanuts, it is necessary to reasonably spray chemical agents to control diseases and pests. But if the chemicals are sprayed too much and too early, and the peanut pegs have not yet entered the soil in large numbers, it will seriously affect peanut fruiting, hinder growth, and in severe cases cause rotten pods and rotten stalks.
The above is a brief introduction to the key factors affecting peanut yield. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!