施用丙草胺对水稻株高和分蘖影响的初步研究  

Preliminary Experiment on the Effect of Applying Pretilachlor on Plant Height and Tiller

作　　者：韩志强[1] 李彦[1] 刘凤芳[1] 

机构地区：[1]黑龙江省肇东市农业技术推广中心,肇东151100

出　　处：《黑龙江农业科学》2008年第3期74-75,共2页Heilongjiang Agricultural Sciences

摘　　要：通过盆栽试验,探讨丙草胺施药量、施药时期、施药时水层深度对水稻的株高、分蘖影响。试验结果表明:有效剂量小于525 g(a.i.).hm-2的丙草胺对水稻的株高、分蘖影响不显著,用量高于600 g(a.i.).hm-2时株高明显受抑制,延迟分蘖发生的时间。The effect of pretilachlor using amount,applying period and water depth on plant height and tiller was discussed by basin culture. The results indicated.. When effective dosage lower than 525g a. i · hm^-2 , the effect of pretilachlor on plant height and tiller was un-remarkable, when higher than 600g a. i. hm^-2, rice plant was suppressed obviously, as well as delaying tiller occurrence.

关 键 词：水稻 丙草胺 株高 分蘖 

分 类 号：S451.21[农业科学—植物保护]