The reasons for the low cotton yield

We certainly can not leave cotton in life, whether we cover the quilt, or some clothes, are cotton as raw materials. It can be seen that cotton is of great importance in our lives, so planting cotton has gradually become a project for many people to get rich. After a few years of planting, you will find that the output of cotton is getting worse year after year, so why on earth is this? Today, the editor brings you the reasons for the reduction in cotton production. Let's take a look.

1. Variety

Variety is the basis for determining yield, and now many growers use insect-resistant cotton. Although insect-resistant cotton has strong pest control ability, high yield and early maturity, it has high requirements for the surrounding environment. Generally speaking, when it comes to the later stage of planting or if the planting time is too long, it is easy to appear the phenomenon of premature senility. And cotton is cross-pollination, it is difficult to ensure the purity of varieties, resulting in variety degradation and reduce yield.

2. Sowing seeds

Sowing time too early will make the seeds vulnerable to low temperature and frost damage, resulting in diseases as soon as the seeds emerge. And early sowing will make the plant enter the stage of vegetative growth in advance, but a lot of nutrients are needed before vegetative growth. Without enough nutrition, the plant is malnourished, the plant is out of load, the pollination and fertilization rate decreases, and the yield decreases.

3. Continuous cropping

Continuous cropping is a problem that many people will have. Now the planting area of cotton is basically a lot, and most of them are contracted land for planting, so it will be difficult to implement crop rotation. In general, continuous cropping in cotton fields for more than two years will cause the lack of nutrition between the fields, the number of bacteria and eggs will also increase, and the incidence of diseases will gradually increase. It has caused a great hindrance to the growth of cotton and seriously reduced the yield of cotton.

4. Moisture

The effect of water on cotton is as necessary as it is on human beings. The continuous lack of water during the growth process will reduce the metabolism of cotton and weaken the resistance of cotton roots. However, water should not be too much, the lack of timely drainage in rainstorm weather will lead to root breathing difficulties, reduce root life, improve the growth of germs, cause a variety of diseases and insect pests, resulting in a decline in yield.

5. Nutrition

When applying fertilizer, most growers only apply chemical fertilizer, but not organic fertilizer, so there is a shortage of organic matter in the soil, so that the soil is solidified, and there is not enough nutrition to be absorbed by the roots, resulting in the imbalance of plant nutrition. And some farmers blindly apply nitrogen fertilizer, not potassium fertilizer, resulting in overgrowth of plants. It may also be that the time of fertilization outside the root is too late, resulting in premature senescence of the plant and decrease of yield.

6. Management

A layer of plastic film is usually laid on the surface after sowing, but it should be removed during the whole growth period. Although the early growth is good, the growth is strong, but the required nutrients will also increase, the existence of plastic film leads to fertilizer can not enter the soil in time, resulting in plant de-fertilization and premature senescence. And plastic film can exist in the ground for decades, which will seriously hinder the development of plant roots.

The above six kinds are the main reasons for the low cotton yield, we should avoid continuous cropping, continuous cropping not only has a great impact on plant yield, but also is likely to destroy the land. So we have the conditions to plant on different plots, and we can unconditionally plant some crops that are different from cotton. That's all for today's introduction. For more information, please continue to follow us!