XIE Fu-ti,WANG He,ZHANG Hui-jun,et al.Effects of Different Fertilizer Levels and Planting Density on Super High-yield Soybean Liaodou 14[J].Soybean Science,2008,27(01):61-66.[doi:10.11861/j.issn.1000-9841.2008.01.0061]
不同肥密处理对超高产大豆辽豆14的影响
- Title:
- Effects of Different Fertilizer Levels and Planting Density on Super High-yield Soybean Liaodou 14
- 文献标志码:
- A
- 摘要:
- 选用超高产大豆品种辽豆14 和普通大豆品种辽豆11 为材料,在不同施肥(150、300 kg hm-2磷酸二铵)和不同种植密度(7.5 、15.0 、22.5万株hm-2)处理下,比较了两个品种的农艺性状和产量表现,试图揭示超高产品种的产量形成规律。结果表明,超高产大豆辽豆14在不同肥密处理下其株高稳定性好,结荚高度低,而且在施肥水平较高时具有较好的分枝性能。叶面积指数在结荚期达到最大值,而后稳健下降,且在生育后期能维持一个较高的水平。超高产品种辽豆14种植密度间产量差异达显著水平,而施肥水平间产量差异不显著,说明只有在超高产栽培条件下才能体现其品种优势,使其产量潜力得到充分表达。
- Abstract:
- Super high-yield is an attractive research field recently as the soybean demand increases.However,the practice of super high-yield is difficult to be repeated as the lack of knowledge of cultivar and the management of super high-yield performance.To understand the specific performance of super high-yield cultivar,we compared the super high-yield cultivar Liaodou 14 and ordinary cultivar Liaodou 11 under different fertilizer levels(150,300 kg hm-2(NH4)2HPO4)and planting densities(7.5,15.0,22.5×104 plants hm-2),the results showed that the plant height of super high-yield cultivar Liaodou 14 was stable under different treatments,and the plants had a lower height of lowest pod,and more branches under the higher fertilizer level.The LAI reached the maximum at podding stage,then decreased stably,and maintained a relative high LAI in the late stage of growth.Significant yield differences were observed among different plant densities,but no significant difference existed under different fertilizer levels.Super high-yield soybean Liaodou 14 can perform better only under the optimal management.
参考文献/References:
[1]Cooper R L. 1971.Influence of soybean production practices on lodging and seed yield in highly productive environments.Agronomy Journal,63:490-493
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备注/Memo
基金项目:辽宁省教育厅科技项目(05L378);辽宁省教育厅创新团队项目(2006T116)