摘要
针对四川省传统的稻田种植模式存在的问题,研究探讨了水稻-秋菜-春马铃薯、水稻-秋马铃薯/油菜和水稻-秋菜-小麦3种稻田生态重建的种植模式。结果表明:与传统的稻油、稻麦种植模式相比,3种植模式下水稻个体长势好,群体发育的结构合理,分蘖较多、穗大、着粒数亦高,千粒重、产量、作物水分生产效率及叶片光合速率均有所提高。千粒重分别比对照高出0.73、0.30和1.51G;水稻产量分别比比对照高出:158.7、99.2和109.0KG/HM2。作物水分生产效率分别提高10.99%、5.60%和12.73%;在水稻生长后期,3种新型的种植模式表现出较强的水肥耦合效应。
Aimed at the problem of paddy-field under conventional planting mode, three kinds of paddy-field ecotypic structures were established including rice-autumn vegetable-spring potato, rice-autumn potato/rape and rice-autumn vegetablewheal were studied. The results indicated that under the condition of riee-antumn vegetable-spring potato,rice-autumn potato/ rape and riee-autumn vegetable-wheat, the three cultivation systems mentioned were fine, and the structure of rice colony were in reasonable. The quantity of rice ramification, panicle, grain, kilo-grain weight, products, WUE, leaf area of rice and photosynthesis velocity during different growing period were enhanced to a certain extent. Compared with conventional cultivation system, kilo-grain weight increased by 0.73,0.30 and 1.51g, respectively. And the yields also increased by158.7 kilogram/hm2 ,99.2kilogTam/ha and 109.0 kilogram/ha. Besides, The WUE of rice increased by： 10.99% ,5.60%, 12.73% foe different treatment. The influencing of water-fertilizer coupling caused by new cultivation systems at the late period of rice growth was behaved. Meanwhile, the cultivation systems, which paddy-field ecotypie structures were established, posse other functions, such as production cost, protecting environment, reducing plant diseases and insect pests, and preventing weed, which would promote the reform of paddy-field cultivation system in Sichuan province.
出处
《核农学报》
CAS
CSCD
北大核心
2006年第1期79-82,31,共5页
Journal of Nuclear Agricultural Sciences
基金
稻田保护性耕作关键技术研究与示范(04NG020-015)
国家863节水农业项目子课题节水农业效益评估方法研究与指体系构建(2002AA2Z4266)
四川省应用基础研究项目(05JY029-106)
农业结构调整重大专项(05-12-02B)
关键词
水稻
产量
WUE
叶面积
种植模式
稻田生态重建
rice
product
WUE
leaf area
planting mode
ecotypic structures reestablished in paddy-field
