Xinjiang locates in interior region of Europe and Asia, Which weather is dry and little rain; the temperature of day and night is wholly different. The spring air temperature backs up slowly, pour the cold weather in spring high frequency, the usually different degree in soil returns the salt and alkali, The basic level plants the unit of the cotton to usually Can't according to farmland ecosystem natural cover the protection the degree again certain winter and spring flooding farmland order of sequence, can't be reasonable certain the cotton starts to seedtime and different type the cotton farmland the fitting seedtime, cotton farmland soil and seeds the quantity all because of every kind of reason can not reach the cotton sow seed for sow the cotton farmland quantity request, cotton after sowing seeds the putrefy seeds that usually appear the different degree, lack the seedling; Under Rigorous situation appear the putrefy seeds in the cotton farmland, lacking seedling , Under the extremely passive circumstance Xinjiang the experiment and the demonstration breeds the personnel, passes" a cave stays two of plants" the etc. method resolved the new variety( strain) experiment and the demonstration the cotton farmland the large-scale lacking the seedling of the cotton farmland protects the seedling plants number few problem effectively, experiencing successively to fail many times, end broke the national cotton the high yields the record many times, creates the new mode in high density planting in cotton, is high for the cotton of Xinjiang to yields planting create a new road son.