不同播种量对机插早稻秧苗素质及产量的影响  

Effects of Different Seeding Rate on the Seedling Quality and Yield of Early Machine-transplanted Rice

作　　者：周永进[1] 胡润[2] 陈再高[3] 纪根学[2] 冯骏[4] 吴文革[1] 许有尊[1] 陈刚[1] 

机构地区：[1]安徽省农业科学院水稻研究所,安徽合肥230031 [2]安徽省池州市贵池区农业技术推广中心,安徽池州247000 [3]安徽省安庆市种植业管理局,安徽安庆246000 [4]安徽省桐城市种植业管理局,安徽桐城231400

出　　处：《安徽农业科学》2014年第34期12056-12058,12090,共4页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划项目(2013BAD07B08;2012BAD04B09-2;2012BAD07B02-4;2011BAD16B06-3);公益性行业(农业)专项(201303102);国家水稻产业技术体系项目(CARS-01-53);安徽省农业科学院创新团队项目(11C0101)

摘　　要：[目的]为进一步完善机插育秧技术,扩大其应用范围,并加快安徽省水稻种植机械化发展提供理论基础和技术支持。[方法]以高产早稻品种中早25为试验材料,研究不同播种量对机插早稻秧苗素质及产量的影响。[结果]100 g/盘的播种量有利于提高机插早稻的根冠比和茎基粗等秧苗素质指标,秧苗素质符合机插作业要求,同时降低早稻的漏插率和伤秧率;机插后大田缓苗期短,分蘖早发、群体结构合理,茎蘖成穗率高,产量结构优化。[结论]双季稻区机插早稻的适宜播种量为100 g/盘。[Objective] The research aimed to provide theoretical foundation and technical supports for further perfecting the machine-transplanted seedling technology,popularize its application range and quickening up the mechanization development of rice planting.[Method]Taking early high-yield rice variety Zhongzao 25 as test materials,the effects of different seeding rate on the seedling quality and yield of early machine-transplanted rice were studied.[Result] Seeding rate of 100 g/plate was propitious to enhance the seedling quality indices such as the root-shoot ratio and stem diameter of early machine-transplanted rice.The seedling quality could meet the demands of machine-transplanted process,and the miss-planting rate and damaged-seedling rate of early rice were decreased.After machine-transplanting,the revival stage in the field was short,the tilling stage was early,the population structure was reasonable,the spike-formed rate of tillers was higher and the yield structure was optimized.[Conclusion] The optimum seeding rate of early machine-transplanted rice in double-cropping rice regions was 100 g/plate.

关 键 词：播种量 早稻 机插 秧苗素质 产量 

分 类 号：S511[农业科学—作物学]