年年换良种,丰收有保证。好种出好苗,好苗结好桃。植棉不选种,每年减两成。选晒种很重要,发努率大提高.棉花要丰产,全苗是关键。棉种消毒净,棉苗少虫病。温水烫,小灰搓,保证出芽多。棉花播种要适时,切忌过早与过迟。早播弱晚播旺,适时播种棉苗壮。早播烂子晚播高腿,不早不晚杏? Good seed change every year, harvest is guaranteed. Good kind of good seedlings, good seedlings knot good peach. Cotton is not selected, reduced by 20% each year. It is very important to choose sunburn, and to increase the rate of catastrophe. Cotton needs high yield and whole seedling is the key. Cotton seed disinfection net, cotton seedling bug disease. Hot water, rub a little gray, to ensure that more buds. Cotton sowing should be timely, should not be too early and too late. Early broadcast weak late broadcast Wang, timely planting cotton seedlings Zhuang. Early sowing late broadcast high-legged, late not late apricot?