不同叶龄期追施穗肥对粳型超级稻产量及品质的影响  

Effects of Dressing Ear Fertilizer in Different Leaf Age on the Yield and Quality of Japonica Super Rice

作　　者：吴桂成 张洪程 吴文革 王艳[1] 戴其根 霍中洋 许轲 魏海燕 

机构地区：[1]扬州大学农业部长江流域稻作技术创新中心,江苏扬州225009 [2]安徽省农业科学院水稻研究所,安徽合肥230031

出　　处：《安徽农业科学》2010年第18期9440-9441,9528,共3页Journal of Anhui Agricultural Sciences

基　　金：国家重大科技攻关项目(2004BA520A03);国家"十一五"科技支撑计划重大项目(2006BAD02A03);农业部专项"超级稻配套栽培技术开发与技术集成"

摘　　要：[目的]寻求粳型超级稻最佳穗肥追施叶龄期。[方法]以超级粳稻武粳15、常优1号为材料,研究不同叶龄期等量追施穗肥对其产量、物质生产、氮素利用及品质的影响。[结果]叶龄余数4、3等量追肥处理产量最高。适期追施穗肥能够有效地增加抽穗-成熟期干物质的积累,获得较高的生物学产量,并能获得较高的氮素利用率;还可以有效改善粳型超级稻稻米主要品质性状。[结论]在施纯氮225 kg/hm2,基蘖肥∶穗肥=6∶4的条件下,叶龄余数4、3等量追穗肥较适宜。[Objective]The research aimed to seek the optimum application leaf age stage of ear fertilizer for japonica super rice.[Method] With Wujing 15 and Changyou 1 as materials,the effects of applying ear fertilizer in different age stage on their yield,matter production,N use and quality were studied.[Result]The yield was the highest under the treatment of applying the same amount of fertilizer in the forth leaf stage and third leaf stage.Suitable fertilization of ear fertilizer could enrich the accumulation of dry matter from heading stage to maturity stage,and improve the biological yield.Higher nitrogen use efficiency could be obtained.The main quality characters of japonica super rice could be effectively improved.[Conclusion]Under the conditions of pure nitrogen of 225 kg/hm2,basic tiller fertilizer/ear fertilizer of 6∶4,the application of ear fertilizer in the forth leaf stage and third leaf stage was more suitable.

关 键 词：不同叶龄期追施穗肥 产量 物质生产 品质 

分 类 号：S511[农业科学—作物学]