YANG Ji-xue,HUANG Shan-shan,YANG Ming-liang,et al.Effect of Density and Fertilizer Amount on Yield of Different Branching Types of Soybeans[J].Soybean Science,2012,31(03):381-384.[doi:10.3969/j.issn.1000-9841.2012.03.009]
密度和施肥量对不同分枝类型大豆产量的影响
- Title:
- Effect of Density and Fertilizer Amount on Yield of Different Branching Types of Soybeans
- 文章编号:
- 1000-9841（2012）03-0381-04
- Keywords:
- Soybean yield; Density; Fertilizer amount; LAI; High yield potential
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 采用三因素裂-裂区试验设计，以东81735（寡分枝）、东03-2176（中等分枝）和东0331（多分枝）3个品种（系）为主区，4个种植密度（10、15、20和24万株·hm-2）为裂区，4种施肥量（300、500、700和900 kg·hm-2）为再裂区，研究了不同密度和施肥量对不同分枝类型大豆品种（系）产量的影响。结果表明，在不同肥密条件下，群体叶面积指数（LAI）呈单峰曲线变化，且最大值出现在盛荚期。3个品种的LAI峰值都出现在密度24万株·hm-2和施肥量900 kg·hm-2的组合中。中等分枝品种东03-2176在密度为20~30万株·hm-2，施肥量为700~900 kg·hm-2时获得较高产量；多分枝品种在密度为20万株·hm-2，施肥量为900 kg·hm-2时获得高产。
- Abstract:
- The effect of planting density and fertilizer level on different branching soybeans were studied by the means of a split plot experiment.Three soybean lines(few-branched Dong-8175,mid-branched Dong-03-2176,multi-branched Dong-0331),four planting densities(1.0,1.5,2.0 and 2.4×105 plant·ha-1)and four fertilizing amounts(300,500,700 and 900 kg·ha-1)were included in this study.The results showed that the maximum of leaf area index (LAI)of three lines appeared in the high density（2.4×105 plant·ha-1)and high fertilizer（900 kg·ha-1)combination in R4 stage four mid-branched Dong-03-2176,the highest yield was obtained at te planting density of 2.0×105 -3.0×105 plant·ha-1with fertilization of 700-900 kg·ha-1;for multi-branched Dong-0331,the highest yield was achieved at planting density of 2.0×105 plants·ha-1 and fertilization rate of 900 kg·ha-1.
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备注/Memo
基金项目：转基因生物新品种培育重大专项（2009ZX8009-089B）。