Planting density and sowing proportions of maize-soybean intercrops affected competitive interactions and water-use efficiencies on the Loess Plateau, China
文献类型：期刊论文
| 作者 | Ren, Yuanyuan1,2; Liu, Jiajia3; Wang, Zhiliang4; Zhang, Suiqi1,4 |
| 刊名 | EUROPEAN JOURNAL OF AGRONOMY
 |
| 出版日期 | 2016 |
| 卷号 | 72页码:70-79 |
| 关键词 | Competition Dynamics Intercropping Water Equivalent Ratio Leaf Area Index Relative Growth Efficiency |
| ISSN号 | 1161-0301 |
| DOI | 10.1016/j.eja.2015.10.001 |
| 文献子类 | Article |
| 英文摘要 | In field trials on the Loess Plateau, China, in 2012-13, maize (Zea mays L.) and soybean (Glycine max L.) were sole cropped and intercropped at three densities and with three sowing proportions. Maize was generally more growth efficient for biomass accumulation than soybean during the entire growth interval, as assessed using the relative efficiency index (REIc). However, most of sowing proportion at each density displayed a trend of decreased growth with development. Throughout the growth period, the dry matter production and leaf area index (LAI) of maize increased as the plant density increased irrespective of whether it was grown as a sole crop or as an intercrop. However, the effect of increasing cropping density was less obvious for soybean. The LAI values of the sole crop treatment for both maize and soybean were greater than that of the intercropping system, indicating that the presence of maize and soybean together suppressed the respective growth of the two crops. At the final harvest, land equivalent ratios (LER) of 0.84-1.35 indicated resource complementarity in most of the studied intercrops. Complementarity was directly affected by changes in plant densities; the greatest LER were observed in 2 rows maize and 2 rows soybean intercrops at low density. The water equivalent ratio (WER), which characterized the efficiency of water resource use in intercropping, ranged from 0.84 to 1.68, indicating variability in the effect of intercropping on water-use efficiency (WUE). (C) 2015 Elsevier B.V. All rights reserved. |
| WOS关键词 | PEA-BARLEY INTERCROPS ; RESOURCE USE ; DRY-MATTER ; YIELD ; GROWTH ; GROUNDNUT ; DYNAMICS ; SORGHUM |
| 语种 | 英语 |
| WOS记录号 | WOS:000366063000008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National High Technology Research and Development Program of China(2011AA100504) ; Chinese Education Ministry(B12007) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/67843]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Suiqi |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Fudan Univ, Sch Life Sci, Key Lab Biodivers Sci & Ecol Engn, Minist Educ, Shanghai 200433, Peoples R China 4.Northwest A&F Univ, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Yuanyuan,Liu, Jiajia,Wang, Zhiliang,et al. Planting density and sowing proportions of maize-soybean intercrops affected competitive interactions and water-use efficiencies on the Loess Plateau, China[J]. EUROPEAN JOURNAL OF AGRONOMY,2016,72:70-79. |
| APA | Ren, Yuanyuan,Liu, Jiajia,Wang, Zhiliang,&Zhang, Suiqi.(2016).Planting density and sowing proportions of maize-soybean intercrops affected competitive interactions and water-use efficiencies on the Loess Plateau, China.EUROPEAN JOURNAL OF AGRONOMY,72,70-79. |
| MLA | Ren, Yuanyuan,et al."Planting density and sowing proportions of maize-soybean intercrops affected competitive interactions and water-use efficiencies on the Loess Plateau, China".EUROPEAN JOURNAL OF AGRONOMY 72(2016):70-79. |
入库方式： OAI收割
来源：地理科学与资源研究所
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