“八五”末至“九五”期间 ,重穗型组合在达州地区大面积推广应用 ,其中Ⅱ优 6 0 78、Ⅱ优 16 2、冈优 72 5等已成为主栽品种 ,为发挥良种增产潜力和良法推广应用。选用冈优 72 5品种进行窝肥配套技术研究 ,按二次饱和Ｄ2 0 6 最优设计 ,因素ｘ1变幅 (密度 ) 12～ 30万窝 /ｈｍ During the period from the end of the Eighth Five-Year Plan to the Ninth Five-Year Plan, the heavy-panicle combinations were popularized and applied widely in Dazhou. Among them, Ⅱyou 6087, Ⅱ You 162 and Gangyou 72 5 have been the main cultivars. Yield potential and good law to promote the application. Selection Gangyou 72 5 nest fertilization technology research, according to the second saturation D2 0 6 optimal design, factor x1 luffing (density) of 12 to 300000 nest / hm