栽培密度对春播饲料油菜生物产量的影响  

The Effect of Cultivation Density on the Biological Yield of Spring Sown Feed Rapeseed

作　　者：凡迪 王婧泽 王涛 代文东[2] 冯文豪 FAN Di;WANG Jingze;WANG Tao;DAI Wendong;FENG Wenhao(Guizhou Provincial Crop Technology Promotion Center,Guiyang 550001,China;Guizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang 550018,China)

机构地区：[1]贵州省农作物技术推广总站,贵阳550001 [2]贵州省农业科学院油菜研究所,贵阳550018

出　　处：《耕作与栽培》2023年第6期31-34,38,共5页Tillage and Cultivation

基　　金：贵州省基金(黔科合基础-ZK[2022]一般289);贵州省科技计划(黔科合支撑[2020]1Y108);贵州粮油绿色高产高效技术推广专项([2021]09号)。

摘　　要：为研究不同栽培密度对春播饲料油菜生物产量的影响和筛选高产饲料油菜品种,本试验在威宁县麻乍镇箐岩村,采用两因素随机区组设计,测定了4个不同栽培密度下,不同饲料油菜品种的生物产量。结果表明,春播饲料油菜亩鲜重产量在4864.05~6164.70 kg/667 m^(2)之间,干重产量在778.17~1231.93 kg/667 m^(2)之间。栽培密度为30万株/hm^(2)的条件下,牲饲2号的鲜重产量最高达到6164.70 kg/667 m^(2),栽培密度为15.0万株/hm^(2)时,宝油早12干重产量最高达到1231.93 kg/667 m^(2),栽培密度为7.5万株/hm^(2),油研9号的鲜重和干重产量最低,分别为4864.05 kg/667 m^(2)和778.17 kg/667 m^(2)。随着栽培密度的增加,其鲜重和干重产量基本呈增加的趋势;饲料油菜品种间干重有极显著差异,鲜重差异不显著。To study the effect on the biological yield of feed rapeseed sowing in the spring with different cultivation density,and screen for feed rapeseed varieties with high biological yield,a two factor random block design was used for measurement of the biological yield of feed rapeseed varieties under four cultivation densities in Jingyan Village,Mazha Town,Weining County.The results showed that the fresh weight yield ranged from 4864.05 kg/667 m^(2)to 6164.70 kg/667 m^(2),and the dry weight yield ranged from 778.17 kg/667 m^(2)to 1231.93 kg/667 m^(2)in the feed rapeseed varieties.The fresh weight yield of‘Shengsi No.2'reached a maximum of 6164.70 kg/667 m^(2)with cultivation density of 300000 plants/hm^(2).On the other hand,the dry weight yield of‘Baoyouzao No.12'reached a maximum of 1231.93 kg/667 m^(2)with a cultivation density of 150000 plants/hm^(2).However,the lowest of fresh weight and dry weight yield of 4864.05 kg/667 m^(2)and 778.17 kg/667 m^(2)were found both on‘Youyan No.9'with a cultivation density of 75000 plants/hm^(2),respectively.We also found a tendency that the yield of fresh weight and dry weight increased with the increase of cultivation density.There was a very significant difference in dry weight between feed rapeseed varieties,and no significant difference was found in fresh weight.

关 键 词：饲料油菜 生物产量 品种 春播 

分 类 号：S565.4[农业科学—作物学]