留苗密度与行距对饲用甜高粱叶茎比.干鲜比和草产量的影响  

Effects of Seedling Density and Line Spacing on Leaf Stem Ratio,DW/FW Ratio and Grass Yield of Forage Sweet Sorghum(Sorghum bicolor(L.) Moench)

作　　者：周汉章[1] 刘环 贾海燕[1] 魏志敏[1] 袁淑红 李顺国[1] 侯升林[1] ZHOU Hanzhang;LIU Huan;JIA Haiyan(National Foxtail Millet Improvement Center, Institute of Millet Crops,Hebei A-cademy of Agriculture and Forestry Sciences,M inor Cereal Crops Laboratory of Hebei Province, Shijiazhuang, Hebei 050035;Shenze County Agriculture Bureau, Shenze, Hebei 052560)

机构地区：[1]国家谷子改良中心,河北省农林科学院谷子研究所,河北省杂粮研究重点实验室,河北石家庄050035 [2]深泽县农业局,河北深泽052560

出　　处：《安徽农业科学》2018年第1期42-46,共5页Journal of Anhui Agricultural Sciences

基　　金：农业部公益性行业科研专项(20120304201)

摘　　要：[目的]为了优化饲用甜高粱留苗密度与播种行距的最适配置,探索其高产栽培技术。[方法]采用二因素裂区试验设计与软件IBM.SPSS.Statistics.v22的LSD法,对饲用甜高粱的密度与行距进行叶茎比、干鲜比与草产量的对比试验。[结果]密度与行距对饲用甜高粱的叶茎比、干鲜比没有明显影响,但对其草产量具有重要影响。明确了饲用甜高粱高产的密度与行距的最佳优化组合A2B4:留苗密度22.50万株/hm2与播种行距40 cm的处理组合。[结论]该研究为饲用甜高粱高产栽培提供理论依据和技术支撑。[Objective]The aim was to optimize the configuration of the seedling density and line spacing of forage sweet sorg\mm(Sorghum bicolor(L.)Moench),and explore its high yield cultivation techniques.[Method]Such two influencing factors as line spacing,seedling density on leaf stem ratio,DW/FW ratio and grass yield of forage sweet sorghum were compared using split-plot experiment design experiment method and LSD method of IBM.SPSS.Statistics.v22statistics software.[Result]Effect of seedling density and line spacing on leaf stem ratio,DW/FW ratio of forage sweet sorghum wasn51obvious,but the two factors had important influence on grass yield.Moreover,the optimal combination for forage sweet sorghum high-yielding density and line spacing was A2B4,The concrete disposition for keeping seedling density22.5x l〇4plants/hm2and line spacing40cm processing combinations.[Conclusion]The research can provide a theoretical basis and technical support for high yield cultivation of forage sweet sorghum.

关 键 词：饲用甜高粱 留苗密度 行距 叶茎比 干鲜比 草产量 

分 类 号：S548[农业科学—作物学] S318