摘要
为了研究不同种植密度对饲用高粱主要农艺性状及生物量的影响,对饲用高粱株高、叶面积、茎粗、分蘖数等农艺性状及各指标的相关性进行分析,明确了不同密度对相关指标的影响:20cm×30cm密度株高最高,20cm×50cm密度下叶面积最大,40cm×30cm密度下苗期分蘖最多,并得到了综合评价得分公式:综合得分=F_1×33.112+F_2×31.012+F_3×24.643,根据综合得分得出大卡Big Kahuna最优种植密度行株距为40cm×30cm。
This paper aimed to investigate the effects of different planting density on main agronomic characters and biomass on forage sorghum,so that plant height,leaf area,stem diameter,tiller number and other agronomic characters were determined,and the correlation of those indexes were analyzed.The results showed that the influence of different density to related indicators：the 20cm×30cm had highest plant height,the 20cm×50cm had largest leaf area,and the 40cm×30cm had most tillers.And the comprehensive evaluation score formula were obtained：comprehensive score=F1×33.112＋F2×31.012＋F3×24.643.It is concluded that the optimum planting density of Big Kahuna planting distance is 40cm×30cm according to the estimated synthetically score.
出处
《畜牧兽医杂志》
2016年第6期43-47,共5页
Journal of Animal Science and Veterinary Medicine
基金
庆阳市科技支撑计划项目"牧草新品种引进及高效安全生产集成配套技术"(NK2011-32)
关键词
种植密度
饲用高粱
农艺性状
生物量
Planting density
forage sorghum
agronomic traits
biomass
