Cotton seed freeze-drying effect is good

　 In the cold winter, the cotton seeds are frozen and dried. One is to reduce the water content of the seeds and increase the storability; the other is to improve the germination rate of the seeds and enhance the cold resistance of the seedlings after seed sowing; can be directly frozen to death in the winter of cotton seeds cotton pests (According to the survey, in the winter of cottonseed pink bollworm larvae typically accounts for about 15% of the amount of overwintering insects), while the sun's ultraviolet rays can kill some attached Pathogens on the surface of the seed .

Select the sunny weather and put the selected cotton seeds on the leeward and sunny open space, the thickness is 3 to 4 cm, and the continuous freeze drying is 7 to 10 days. If the sun is planted for 3 to 5 days before the spring sowing , the effect is better. For cotton varieties with a water content of 12% or more, do not freeze the sun to avoid freezing the seeds and losing their ability to germinate.