摘要
为探讨栽培模式与密度对大豆冠层结构和产量的影响,2007～2008年于内蒙古民族大学试验农场,以垦丰16为试材,采取两因素随机区组设计,研究了栽培模式与密度对叶面积指数、荚数和荚干重在冠层中垂直分布及产量差异。结果表明:在不同的栽培模式下,垄上三行窄沟密植栽培叶面积指数、荚数和荚干重最高,垂直分布最合理,产量也最高,不同栽培模式之间产量差异达到极显著水平。不同密度条件下,叶面积指数随着密度的增加而增加,在密度为30万株.hm-2到36万株.hm-2之间,产量、荚数和荚干重随密度的增加而增加,但当密度为39万株.hm-2时,产量、荚数和荚干重都有所降低,即在36万株.hm-2的栽培密度下产量最高。
In order to explore the effects of cultivation pattern and density on the canopy structure and yield of soybean, Kefeng 16 was used as experimental materials, the vertical distribution of leaf area index, pods number, pod dry weight and the yield of the soybean under different cultivation patterns as well as different densities were studied by using randomized block design in Inner Mongolia University in 2007 - 2008 year. The results showed that the vertical distribution of the leaf area index, pods number and pod dry weight were most reasonable and the yield was the highest in three rows on ridge under the different cultivation patterns and the yield was significantly sensitive to the different cultivation pattern. The leaf area index increased with the increasing of the density. Besides, the yield, pods number and pod dry weight increased with the in- creasing of the density between 300,000 plant · ha-1 and 360,000 plant· ha-1, then decreased under the density of 390, 000 plant · ha-1, which indicated that the yield was the highest under the density of 360,000 plant · ha-1.
出处
《大豆科学》
CAS
CSCD
北大核心
2010年第5期796-799,803,共5页
Soybean Science
基金
内蒙古教育厅资助项目(NJzy08086)
内蒙古民族大学校内课题资助项目(MDX2008019)
关键词
大豆
栽培模式
密度
冠层结构
Soybean
Cultivation patterns
Density
Canopy structure
