When is cotton harvested?

Cotton is picked in autumn and once every 5-7 days after bolls are formed. If the cotton fiber is picked too early, it will not be fully mature, and the yield and quality will be reduced. Picking too late, cotton wool exposed to wind and sunlight will reduce fiber tension, pollute color and reduce cotton quality. Therefore, it is necessary to harvest cotton in time to improve its quality and grade.

In order to prevent the mature cotton wool from getting wet by rain, the pigments in cottonseed hulls and cotton leaves will pollute cotton, resulting in red, yellow and gray spots on white cotton. If it rains continuously, it will lead to mildew and deterioration. Therefore, it is necessary to know the weather changes in time.

When picking cotton, it is necessary to separate good flowers, hard cotton and ground cotton, dry them separately and store them separately. They shouldn't be mixed and sold in grades.

Extended data:

growing environment

Cotton is mostly early-middle-maturing, early-maturing and extra-early-maturing varieties, which are not sensitive to the response of day length. It is a light-loving crop and is suitable for growing under sufficient sunlight.

The growth and development of cotton needs water and nutrients, which are mainly obtained from soil through roots. The required temperature and air are partly obtained from the soil, which needs the mechanical support of the soil to grow.

The physical, chemical and biological characteristics of cotton soil greatly restrict the yield and quality of cotton. Soil moisture, nutrients, temperature, air, salt and texture have great influence on cotton growth.