| 间甲酚对盆栽小麦间作蚕豆生产力及根重的影响 |
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| 引用本文： | 柴,强.间甲酚对盆栽小麦间作蚕豆生产力及根重的影响[J].中国生态农业学报,2007,15(4):109-112. |
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| 作者姓名： | 柴 强 |
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| 作者单位： | 甘肃农业大学农业生态工程研究所,兰州,730070 |
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| 基金项目： | 国家自然科学基金;甘肃省自然科学基金 |
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| 摘 要： | 盆栽试验研究浓度为0(A0)、150×10-6mol/kg(A1)、300×10-6mol/kg(A2)和450×10-6mol/kg(A3)的间甲酚对小麦间作蚕豆、单作小麦和蚕豆生产力及根冠比的影响,结果表明:A0～A34个浓度下,成熟期间作小麦产量相对于单作分别提高59.26%、25.16%-、44.33%、-74.15%,间作蚕豆产量相对于单作分别提高-8.79%、5.52%、13.40%、160.38%。间作群体中两种作物对化感物质适应的补偿作用形成了间作稳产的重要基础。低浓度间甲酚对间作经济产量和收获指数的化感正效应大于单作,但高浓度时在间作中产生的负效应较小;A1和A3浓度间甲酚作用下,小麦间作蚕豆根冠比小于单作,间作具有较高的将光合产物转化为地上组织的特点。
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| 关 键 词： | 间作 化感作用 收获指数 生产力 根重 间甲酚 小麦 蚕豆 |
| 收稿时间： | 2005-11-18 |
| 修稿时间： | 2006-02-19 |
Effect of 3-methyl-phenol on root weight and productivity in wheat-faba bean intercropping |
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| CHAI Qiang.Effect of 3-methyl-phenol on root weight and productivity in wheat-faba bean intercropping[J].Chinese Journal of Eco-Agriculture,2007,15(4):109-112. |
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| Authors: | CHAI Qiang |
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| Institution: | Institute of Agro-Ecology Engineering, Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: | A pot experiment was carried out to study the effect of 3-methyl-phenol on the productivity and root/canopy ratio in wheat-faba bean intercropping and mono-cropping at concentrations of 0 (A0),150×10-6 mol/kg (A1), 300×10-6 mol/kg (A2) and 450×10-6mol/kg (A 3).Results show that in the maturity stage, yield of intercropped wheat improves by 59.26%,25.16 %,-44.33% and -74.15% compared to mono-cropping treatments of A0,A1,A2 and A3 respectively.Yield of intercropped faba bean improves by -8.79%,5.52%,13.40% and 160.38% respectively.In intercropping system,compensation for different components is an important function of yield stability.3-methyl-phenol shows greater positive economic benefit and yield harvest index under intercropping than under mono-cropping system at A1 dose,but as the dosage improves to A2 and A3,3-methyl-phenol shows less negative economic effect and yield harvest under intercropping than under mono-cropping system.Root/canopy ratio of wheat and faba bean intercropping decreases at 3-methyl-phenol dose of A1 and A3.Compared with mono-cropping system,intercropping shows an advantage of transferring photosynthesis to above-ground biomass. |
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| Keywords: | Intercropping Allelopathic effect Harvest index Productivity Root weight 3-methylphenol Wheat Faba bean |
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