稻菜轮作下施氮量对水稻产量及构成因素的影响  

Influence of Nitrogen Fertilizer on Yield of Rice Varieties and Its Yield Components in the Rice-Vegetable Rotation System

作　　者：王静[1] 唐永群[1] 文明[1] 张现伟[1] 甘兴友[1] 刘代杰[1] 李经勇[1] 

机构地区：[1]重庆市农业科学院水稻研究所,重庆再生稻研究中心,重庆永川402160

出　　处：《福建稻麦科技》2010年第3期12-16,共5页Fujian Science and Technology of Rice and Wheat

基　　金：国家科技支撑计划--"西南城乡一体化城郊农业与环境协调技术集成与示范"课题;"菜轮作模式下城郊环保农业生产技术体系研究与示范"专题(2008BAD7B09-2)

摘　　要：研究稻田前作蔬菜条件下,施N量对水稻产量及构成因素的影响。结果表明,在施纯N0～97.5kg/hm2范围内,渝优600在施纯N97.5kg/hm2时能获得高产;施N量高低对Q优6号产量影响不很敏感,在施纯N68.5～97.5kg/hm2范围内,产量均相对较高;渝香203在施纯N68.5kg/hm2时能获得高产。本试验水平下各品种N肥利用率大小顺序为:渝香203>Q优6号>渝优600,当土壤可利用N成为限制因子时,种植渝香203和Q优6号能获得较高产量;当土壤可利用N充分时,种植渝优600能获得高产。The influence of nitrogen fertilizer on yield of Rice varieties and its components were studied under the condisions of previous crop cultivating vegetable in rice field. It showed that yield of Yuyou 600 would be highest under 97.5kg·hm-2 nitrogen rate, within 0kg·hm-2 to 97.5kg·hm-2 limits of nitrogen rate. Qyou NO.6 was relatively insen-sitive to nitrogen rate, and the yield would relatively be higher within 68.5kg·hm-2 to 97.5kg·hm-2 limits of nitrogen rate. And yield of Yuxiang 203 would be highest under 68.5kg·hm -2 nitrogen rate. In the experimental conditions, the Nitrogen use efficiency size order of different varieties is Yuxiang 203Qyou NO.6Yuyou 600. When soil nitrogen content was low, planting Yuxiang 203 or Qyou NO.6 could achieve high yield. While yields of Yuyou 600 would be higher as soil nitrogen content was high.

关 键 词：水稻 品种 施氮量 产量形成 

分 类 号：S511[农业科学—作物学] S143.1