沟灌渗透对直播水稻生长发育及产量的影响  

Influence of Penetration through Ditch Irrigation on the Growth and Yield of Direct- seeding Paddy

作　　者：何春林[1] 陈彪[1] 郭荣发[1] 

机构地区：[1]湛江海洋大学农学院,广东湛江524088

出　　处：《节水灌溉》2004年第5期10-13,共4页Water Saving Irrigation

基　　金：广东省科技攻关项目"水稻非充分灌溉节水高产栽培新技术研究与示范"的部分内容(项目编号:2002A2040902)。

摘　　要：研究了不同畦宽(90cm、130cm、170cm)沟灌渗透栽培与常规淹水栽培对直播水稻根、茎、叶生长发育特性、机能及其产量的影响。结果表明:合理畦宽的沟灌渗透栽培不但可以促进根、叶的生长发育,而且能改善根系的机能、冠层叶的性状和结构,塑造良好的株型,提高单位面积穗粒数、结实率、千粒重,达到节水增产的效果。The influence of different irrigation methods on the growth characteristics, functions and yield of the roots, stem and leaves of direct- seeding rice was studied in this paper. The irrigation methods included conventional flooding irrigation and penetration through ditch irrigation with different farmland width as 90cm, 130cm and 170cm. The result shows that penetration through ditch irrigation with reasonable farmland width can not only promote the growth and development of roots and leaves, but also improve the function of roots system and the quality and structure of coronal lamina, make better plant shape, increase the number of grain per unit area, the rate of fruition and the weight per thousand pieces, to gain the result of increasing yield and saving water.

关 键 词：水稻 生长发育 沟灌渗透 产量 

分 类 号：S275.3[农业科学—农业水土工程]