免耕强化栽培条件下水稻生理及群体发育的研究  

Study on the Physiological Performance and Population Development of Rice under the Condition of No-tillage Intensified Cultivation

作　　者：唐茂艳[1] 崔桂生 黄绍民[1] 吕荣华[1] 刘开强[1] 

机构地区：[1]广西农业科学院水稻研究所,广西南宁530007 [2]广西兴安县崔家乡农业服务中心,广西兴安541311

出　　处：《安徽农业科学》2009年第32期15754-15755,15758,共3页Journal of Anhui Agricultural Sciences

基　　金：广西农业科学院科技发展基金(2006001);广西农业科学院水稻研究所青年基金(2007001)

摘　　要：[目的]为免耕强化栽培在水稻种植中的应用提供参考。[方法]以两优培九为供试品种,以免耕抛秧栽培为对照,采用随机区组设计,通过田间试验研究了免耕强化栽培条件下水稻的生长状况和产量。[结果]免耕水稻强化栽培体系(SRI)和对照在分蘖高峰期的平均分蘖数分别为36.5和26.7个/株,相差36.7%;在成熟期的有效穗数分别为14.6和11.4个/株,相差28.07%。在分蘖期、抽穗期和成熟期,免耕SRI的根系活力分别比对照高17.43%、13.63%和22.41%,叶片脯氨酸含量分别比对照高21.37%、32.44%和9.92%,叶片丙二醛含量分别比对照高10.42%、13.62%和9.47%。与免耕抛秧栽培相比,免耕SRI的有效穗数减少了8.93%,穗粒数增加了11.32%。[结论]免耕强化栽培是一种高产高效栽培模式,值得推广和应用。[ Objective ] The study aimed to provide reference for the application of no-tillage and intensified cultivation in rice planting. [ Method] With Liangyoupeijiu as tested cuhivars, no-tillage rice transplanting cultivation as CK, the growth status and yield of rice under the condition of no-tillage intensified cultivation were studied through the field experiments with randomized block design. [ Result ] The average tiller numbers of no-tillage system of rice intensification （SRI） and CK in peak tillering period were 36.5 and 26.7 tillers/plant resp. and their difference was 36.7% ; their available ear numbers in maturation period were 14.6 and 11.4 ears/plant resp. and their difference was 28.07%. In tillering, heading and maturation periods, compared with CK, the root activity of no-tillage SRI was enhanced by 17.43%, 13.63% and 22.41% resp. , its proline content in leaf was enhanced by 21.37% , 32.44% and 9.92% resp. and its malona｜dehyde content in leaf was enhanced by 10.42% , 13.62% and 9.47% resp. Compared with no-tillage rice transplanting cultivation, the available ear number of no-tillage SRI was reduced by 8.93% and its grain number per ear was increased by 11.32%. [ Conclusion ] No-tillage intensified cultivation was a high-yield and high efficient cultivation mode and it was worth popularizing and applying.

关 键 词：水稻 免耕 强化栽培 生理特性 群体发育 

分 类 号：S511[农业科学—作物学]