Dry seeds and seeds, the first kind of back osmosis according to the principle of unequal tillage, cotton seedlings that have not infiltrated the bottom water, you can dry seeds or soak seeds for 2 to 3 hours, remove the seed after drying and seeding, etc. As soon as possible to seep water to ensure emergence. Ditching water seepage, gutter irrigation to save water and electricity, in the absence of electricity to open a good ditch, the whole thing, when there is electricity immediately infiltration, to maximize efficiency. Digging trenches and digging nests, cultivating small areas of farmers or dryland cotton fields, can take a ditch or digging water, and then point seeding methods. But must deal with cottonseed, the method is: use three open to a cool warm water (55 °C ~ 60 °C, water weight 1.5 times the seed weight) soak the seeds for half an hour, the use of water heat sterilization, add cold water after half an hour soaking 8 hours to 12 hours, after sufficient absorption of water, remove and control dry, mix the seed with 1% of Baomiao Ling and mix the sand and mix well. Extending the sowing date and increasing the density of cotton fields that cannot be planted in a timely manner can be planted in the middle or late April when there is rain or watering, and no later than May 5. Can take a boring germination approach to shorten the emergence time. The method is: pour the seeds on the ground, spray the seeds into the sprayer with water of 25°C-30°C, and continue to stir until sprayed until the water does not flow. Then cover it with a plastic film, and then spray it for 5 to 6 hours until it is soaked. Cover it for 24 hours until most of the seeds are slightly exposed white buds. When boring germination, in case of weather changes can not be timely sowing, ventilation should be promptly stalled to delay the germination process, can still be used after fine weather. However, it is necessary to increase the amount of sowing and increase the density of seedlings. The density of seedlings in late-seeding cotton fields should reach about 8,000 per acre, relying on groups to obtain high yields.