水稻强化栽培适宜密度探讨  

Discussion about fitting density on rice intensification

作　　者：吴春赞[1] 林华 赖联赛[1] 林辉[1] 

机构地区：[1]浙江省苍南县农业局,浙江温州325800 [2]浙江省温州市农业站,浙江温州325000

出　　处：《垦殖与稻作》2006年第1期29-31,共3页Reclaiming and Rice Cultivation

基　　金：浙江省温州市2003年度科技项目

摘　　要：进行水稻强化栽培不同栽植密度试验,结果表明:稀植有利于水稻个体生长优势的发挥。随着栽植密度的减少,单株分蘖数、成穗率提高,单穗总粒数增加,纹枯病减轻。不同栽植密度对强化栽培水稻的单产有明显的影响,密度过低或过高,均不利于实现高产。单产以每公顷栽植12万丛(穴)为最高,达10050kg/hm2,分别比7.5万丛/hm2、21万丛/hm2、25.5万丛/hm2增产11%、11%和19.4%,达到极显著差异水平。Make the test about the different planting density on rice intensification, the test indicated that thin planting is propitious to unleash vegetal deominant of rice individual. Along with the decrease of planting density, tiller number of single plant percentage of earbearing tiller can increase, number of grain per ear can increase and banded sclerotial blight can lighten, The different planting density has the obvious influence to the yield of reice, high or low density were not propitious for achieving high yield. When the planting density is 120 thousand clusters/hm^2 can achieve the highest yield which is 10050 kg/hm^2. it can increase prduction 11%. 11% and 19.4% than 75thousand clusters/hm^2. 210.

关 键 词：水稻强化栽培 栽植密度 产量 

分 类 号：S511.044[农业科学—作物学]