| 甘蔗—大豆间作对大豆鲜荚产量和农艺性状的影响 |
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| 引用本文： | 杨文亭,李志贤,冯远娇,舒磊,王建武.甘蔗—大豆间作对大豆鲜荚产量和农艺性状的影响[J].生态学杂志,2012,31(3):577-582. |
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| 作者姓名： | 杨文亭 李志贤 冯远娇 舒磊 王建武 |
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| 作者单位： | 华南农业大学热带亚热带生态研究所,广州510642;华南农业大学农业部华南热带农业环境重点实验室,广州510642;华南农业大学广东省高等学校农业生态与农村环境重点实验室,广州510642 |
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| 基金项目： | 国家重大基础研究计划项目(2011CB100400);国家科技支撑计划项目(2007BAD89B14);广东省科技计划项目(2008A020100011)资助 |
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| 摘 要： | 为探讨甘蔗-大豆间作模式对大豆鲜荚产量和农艺性状的影响,于2009—2011年连续3年在广州市华南农业大学农场进行大田试验,试验设置2种施氮水平(常规施氮(525kg·hm-2)和减量施氮(300kg·hm-2))和3种种植模式(甘蔗-大豆(1∶1)、甘蔗-大豆(1∶2)、单作大豆)。结果表明:甘蔗-大豆间作(1∶2)模式下,2009年减量施氮水平的大豆鲜荚产量较常规施氮水平提高了33%,2010和2011年不同施氮水平间均无显著差异;甘蔗-大豆间作模式对大豆的单株鲜荚重、多粒荚数和百粒鲜重无显著影响;大豆单株鲜荚重与多粒荚数在不同种植模式下均呈显著相关(P<0.05),在常规施氮间作模式下与大豆单株荚数呈显著相关(P<0.05)。甘蔗-大豆间作没有降低大豆的单株鲜荚产量,也没有对大豆的农艺性状产生负面影响,从增产增收、提高土地生产力来考虑,减量施氮模式下甘蔗-大豆间作具有一定的可行性。
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| 关 键 词： | 甘蔗-大豆间作 鲜荚产量 农艺性状 相关性 |
Effects of sugarcane-soybean intercropping on soybean fresh pod yield and agronomic traits |
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| YANG Wen-ting
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LI Zhi-xian
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FENG Yuan-jiao
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SHU Lei
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WANG Jian-wu.Effects of sugarcane-soybean intercropping on soybean fresh pod yield and agronomic traits[J].Chinese Journal of Ecology,2012,31(3):577-582. |
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| Authors: | YANG Wen-ting LI Zhi-xian FENG Yuan-jiao SHU Lei WANG Jian-wu |
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| Institution: | 1,2,3 (1 Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China; 2Key Laboratory of Agro-Environment in the Tropics of Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China; 3 Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, China) |
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| Abstract: | A three-year (2009-2011) field experiment was conducted in the South China Agricultural University Experimental Farm in Guangzhou to investigate the effects of sugarcane-soybean intercropping on the fresh pod yield and agronomic traits of soybean. Two nitrogen application rates (500 kg·hm-2, normal rate; and 300 kg·hm-2, reduced rate) and three cropping patterns (sugarcane-soybean 1∶1, sugarcane-soybean 1∶2, and soybean) were designed. As compared with that under normal nitrogen application, the soybean fresh pod yield in 1∶2 intercropping system under reduced nitrogen application increased by 33% (P<0.05) in 2009, but had no significant difference in 2010 and 2011. Sugarcane-soybean intercropping had little effect on the soybean fresh pod weight per plant, quantities of the pods with more grains, and 100-grain fresh weight. In all the three cropping patterns, the soybean fresh pod weight per plant had significant positive correlation (P<0.05) with the quantities of the pods with more grains; in the intercropping patterns under normal nitrogen application, the soybean fresh pod weight per plant had significant positive correlation (P<0.05) with the pot number per plant. Sugarcane-soybean intercropping did not reduce the soybean fresh pod yield per plant, and had no negative effects on the major agronomic traits of soybean plant. From the viewpoint of increasing income and improving land productivity, sugarcane-soybean intercropping with reduced nitrogen application could be a practically feasible cropping mode for soybean. |
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| Keywords: | sugarcane-soybean intercropping fresh pod yield agronomic trait correlation |
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