沟灌渗透对直播水稻根、叶生长特性的影响  

Influence on the Growth Characteristics of the Roots and Leaves of Direct-seeding Rice by Penetration Through Ditch Irrigation

作　　者：何春林[1] 郭荣发[1] 陈彪[1] 

机构地区：[1]湛江海洋大学农学院,广东湛江524088

出　　处：《灌溉排水学报》2004年第1期52-55,共4页Journal of Irrigation and Drainage

基　　金：广东省科技攻关项目(2002A2040902)

摘　　要：研究了90、130、170cm3种畦宽沟灌渗透灌溉与常规淹水灌溉对直播水稻根、叶生长特征、机能及其产量性状的影响。结果表明:合理畦宽的沟灌渗透不但可以促进根、叶的生长发育、而且也能改善根系的机能和冠层叶的性状,提高1m2总粒数、结实率、千粒重,达到节水增产的效果。Three kinds of farmland with different width (90 cm, 130 cm and 170 cm) for penetration through ditch irrigation have been studied, as comparison with the irrigation by conventional inundation, to see their influences on the growth characteristics, functions of the roots and leaves of direct- seeding rice and its yield. The result shows the reasonable width of the farmland by penetration through ditch irrigation can not only promote the growth and development of roots and leaves, but also improve the function of roots system and the quality of coronal lamina, increase the number of grain per square meter, the rate of fruition and the weight per thousand pieces, to gain the result of increasing production and saving water.

关 键 词：直播水稻 根系 叶片 沟灌渗透 生长特性 

分 类 号：S511[农业科学—作物学]