LI Rui-ping,LI Zhi-gang,MA Ri-liang,et al.Effect of Narrow Trenches and Compact Planting of Three Lines of Ridge on Population Physiology in Soybean[J].Soybean Science,2009,28(01):81-84.[doi:10.11861/j.issn.1000-9841.2009.01.0081]
大豆垄上三行窄沟密植栽培群体生理研究
- Title:
- Effect of Narrow Trenches and Compact Planting of Three Lines of Ridge on Population Physiology in Soybean
- 文章编号:
- 1000-9841(2009)01-0081-04
- Keywords:
- Three lines of ridge; Soybean; Density; Population physiology
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 为探讨垄上三行窄沟密植栽培对大豆群体生理的影响,选择垦丰16为材料,在4个密度(分别为30×104、33×104、36×104、39×104株hm-2)栽培条件下,测定了大豆株高、叶面积指数、光合势、单株干物质积累及产量指标。结果表明:株高和叶面积指数随密度的增加而增加,出苗后66 d株高达最高;而单株干物质积累随密度的增加而降低;在鼓粒期各处理光合势均达最高。结果显示:单株籽粒重随密度的增加而降低,而群体产量随密度的增加呈先增加后降低的趋势,密度为36×104株hm-2下,产量最高(4364 kghm-2)
- Abstract:
- The effect of narrow trenches and compact planting of three lines of ridge on population physiology were studied under four cultivating densities(30×104,33×104,36×104,39×104 plantsha-1,respectively),with Kenfeng16 as material.The plant height,leaf area index,leaf area duration,dry matter accumulation and distribution and yield were investigated.The results showed that plant height and leaf area index increased with the increase of density and plant height maximized 66 days after emergence;plant dry matter accumulation were decreased with the increase of density;leaf area duration of each density reached the highest at seed-filling.Seed weight of single plant decreased with the increase of density,but populations yield increased first and then decreased with the density increased.The highest yield of 4364 kgha-1was obtained under the density of 36×104 plantsha-1.
参考文献/References:
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备注/Memo
基金项目:内蒙古教育厅资助项目(NJzy08086)。