种植密度与行距对秋闲田饲用甜高粱单株生产力的影响  

Impact of Planting Density and Line Spacing on Individual Plant Productivity of Forage Sweet Sorghum in Autumn Idle Land

作　　者：周汉章[1] 刘环 贾海燕[1] 魏志敏[1] 袁淑红 侯升林[1] 李顺国[1] ZHOU Han-zhang;LIU Huan;JIA Hai-yan;WEI Zhi-min;YUAN Shu-hong;HOU Sheng-lin;LI Shun-guo(Minor Cereal Crops Laboratory of Hebei Province,National Foxtail Millet Improvement Center,Institute of Millet Crops,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050035,China;Agricultural Bureau of Shenze County of Hebei Province,Shenze 052560,China)

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]河北省深泽县农业局,河北深泽052560

出　　处：《畜牧与饲料科学》2018年第3期41-47,共7页Animal Husbandry and Feed Science

基　　金：农业部公益性行业科研专项"牧区饲草饲料资源开发利用技术研究与示范"(20120304201)

摘　　要：[目的]为了使秋闲田饲用甜高粱丰产丰收,对其种植密度、行距与单株生产力的关系进行了探索。[方法]采用列区试验设计与软件IBM.SPSS.Statistics.v22的LSD法,对秋闲田饲用甜高粱的种植密度与播种行距进行了单株生产力的比较试验。[结果]种植密度与行距对秋闲田饲用甜高粱单株生产力具有重要影响。明确了秋闲田饲用甜高粱单株生产力的优化组合为A1B4,即种植密度为7.50万株/hm^2与播种行距为40 cm的配置,该配置的单株鲜重与干重分别为654.37 g/株、147.11 g/株。[结论]为秋闲田种植饲用甜高粱的生产实践提供了理论依据。[Objective]In order to develop the high-productivity technology of forage sweet sorghum in autumn idle land,the association of planting density and line spacing with individual plant productivity was assessed.[Methods]Using split-plot experiment design method and LSD method of IBM.SPSS.Statistics.v22 statistics software,a field experiment was conducted to compare the single plant productivity of the forage sweet sorghum cultured with different planting density and line spacing.[Results]The results showed that planting density and line spacing had important influence on individual plant productivity of forage sweet sorghum in autumn idle land.Moreover,the optimal combination of plant productivity was determined as A1B4 with the planting density of 7.50×104 plants/hm2 and the line spacing of 40 cm.Under this configuration,the fresh and dry weight per plant was 654.37 g/plant and 147.11 g/plant,respectively.[Conclusion]Our results provided a theoretical basis for improving the production of forage sweet sorghum in autumn idle land.

关 键 词：秋闲田 饲用甜高粱 种植密度 行距 单株生产力 

分 类 号：S514.042[农业科学—作物学]