What are the factors affecting the fiber quality of cotton?

Cotton is the main raw material of the textile industry, and its fiber quality directly affects the quality of textiles, so cotton quality has also become a key factor in the competitiveness of raw cotton. So what are the factors affecting the fiber quality of cotton? Come and have a look with the editor.

1. Genetic characteristics of varieties.

The fiber quality of cotton depends on the genetic characteristics of cotton varieties. At present, the fiber length of many cotton varieties is generally in 29mm, whose fiber strength and fineness are poor, which can not meet the requirements of high quality cotton, and the adaptability and yield stability of cotton varieties are poor. At present, the fiber quality of these cotton can only maintain the status quo, far from meeting the demand of production and market for high-quality cotton.

2. Improper cultivation and management

In order to pursue quality, many farmers blindly adopt the planting mode of "short, dense and early", which leads to the strong vegetative growth of cotton, the closure of field canopy, the aggravation of diseases and insect pests and the increase of rotten bolls. And fertilization is too single, mainly chemical fertilizer, more fertilizer in the early stage, and it is easy to lose fertilizer and premature senility in the later stage. There is a lot of blindness in the chemicals used in the control of diseases and insect pests, and several agents are often mixed, resulting in damage to the quality of cotton. In addition, the use of foliar fertilizer and growth regulators is unreasonable, often mixed with two or more kinds, but the leaves are hypertrophy, the leaf color is dark green to black green, and the vegetative growth is too prosperous, resulting in late bud and boll formation, delayed maturity and poor fiber development.

3. Climate and environment change

The fiber of cotton was developed from ovule epidermis, which was not in the main elongation period within 20 days after flowering, and basically stopped elongating after 25 days. The extension development of cotton fiber is closely related to the temperature. The elongation temperature of appetite is between 20 and 25 degrees, and the elongation temperature of less than 15 degrees or more than 25 degrees will cause the fiber to stop elongating. If the temperature is too high in the daytime and too low at night, the elongation of the cotton fiber is restrained, and it is difficult to reach the length under the suitable temperature, resulting in a serious decline in quality.

4. there is a problem with the harvest.

In the harvest of mixed harvest regardless of varieties, there is still a phenomenon of inferior quality in the transaction, resulting in the instability of cotton varieties, in addition, with the continuous expansion of the harvest area, it also has a certain impact on cotton varieties. In order to harvest at the right time, it should be known that the defoliant is used in the first ten days of September, and the fiber can not mature normally after the defoliant is used in the varieties with long growing period, which has a certain impact on the fiber quality of cotton.

The above are the factors that affect the quality of cotton fiber, which are introduced, hope to help you, want to know more related knowledge, please follow us.