How is the latest cotton size caused?

Cotton is a plant of Malvaceae, which has a very large planting area in China, and China is also one of the countries with the highest cotton output. As the main raw material of most cotton products, cotton is a very important crop. So there are more and more people growing cotton, but when many people plant cotton, they will find that there are often large and small seedlings of cotton. So how are cotton seedlings made? Let's take a look at it together.

1. Temperature and humidity reasons

A professional survey found that when planting cotton, the cotton in the middle of the plastic film grows much better than the cotton on both sides. This is because the temperature in the middle of the plastic film is about three degrees higher than that on both sides. Therefore, temperature is the main factor leading to the size of cotton seedlings. Then there is humidity. If it is not properly watered, especially if there are more rainy days, then the humidity in the cotton field is uneven, and it is easy to form moisture. Coupled with the uneven temperature, cotton seedlings naturally appear. Therefore, we must pay attention to control the temperature and humidity, especially after sowing, maintain consistent soil moisture and improve the uniformity of cotton seedlings.

2. Improper film laying

When planting cotton, we need proper film mulching, which is the key measure to ensure the normal growth and yield of cotton. After sowing cotton, if the plastic film is not covered and lead to air leakage and encounter the phenomenon of windy and gale. Plastic film can not balance the heat preservation of cotton seeds and seedlings. Where the plastic film is properly covered, the seedling speed will be faster because of heat preservation and moisturizing. On the contrary, improper film mulching will have a great impact on the growth of cotton seedlings, resulting in the phenomenon of large and small seedlings, so we must pay more attention to it.

3. Too much residual film

Too much residual film in cotton field is also one of the main reasons for the size of cotton seedlings. When planting cotton, if plastic film planting has been carried out for many years. Then the plastic film in the plough layer of the cotton field will accumulate too much, which will cause great hindrance to the germination of cotton seeds. According to the investigation phenomenon, the residual film in the plough layer will affect the emergence rate of cotton seeds by at least 5%. If the seed is sown on the residual film or is covered with the residual film. Because the soil permeability is too poor, resulting in slow emergence, non-emergence or even dead seedlings.

4. Seed and sowing reason

We have to go through strict selection of cotton seeds before sowing. If the quality of the seed is too poor or there is no drying seed disinfection and other treatment of the seed. It will affect the overall quality of seeds, unhealthy and withered seeds emerge slowly, and their seedling growth ability is also very poor, which will naturally be compared with healthy seeds. And when sowing, if the soil preparation work is not done well, the sowing depth is inconsistent. Then the emergence time of cotton seeds will naturally be different, in addition, flick seeds, soil thickness and so on are easy to cause the phenomenon of cotton seedlings.

The above is a brief introduction to how cotton seedlings are made. That's all for today's introduction. This article is for reference only. I hope it can help you all.