氮肥运筹对不同覆盖物水稻旱管栽培产量形成的影响  

Effect of N fertilizer Management on Yield Formation in Rice under Dry Cultivation and Different Cover

作　　者：易杰忠[1] 尹建义[2] 刘芹 王松松[1] 李克武[1] 

机构地区：[1]江苏省徐州市农业局,徐州221003 [2]江苏省丰县农业局,丰县221700

出　　处：《贵州农业科学》2000年第5期14-17,共4页Guizhou Agricultural Sciences

基　　金：江苏省徐州市政府专项研究课题 ;江苏省"丰收计划"项目!(农丰 990 1 )

摘　　要：通过不同覆盖物与不同氮肥运筹试验 ,探讨了中粳稻 CY- 6在旱管栽培条件下 ,不同覆盖物、不同促花肥用量比例对群体茎蘖动态、植株性状、干物质生产、穗粒结构及产量的影响。结果表明 :旱管栽培采用地膜覆盖具有保肥、增产优势。本试验条件下最适促花肥施用比例 :覆膜为2 1.6 7% ,铺草为 2 7.32 %Effect of different cover and different quantum of promoting spikelet fertilizer on population tiller dynamics, plant characters, accumulation of dry matter, composition of ear and grain and yield of Zhonggeng CY 6 was investigated. Results showed: covering with plastics could protect fertilizer and increase production. The most appropriate ratio of promoting spikelet N fertilizer was 21.67% in covering with plastics and 37.32% in covering with grass.

关 键 词：氮肥运筹 覆盖物 水稻 旱管栽培 产量形成 

分 类 号：S511.062[农业科学—作物学] S511.048