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Planting density and sowing proportions of maize-soybean intercrops affected competitive interactions and water-use efficiencies on the Loess Plateau, China
Ren, Yuanyuan1,2; Liu, Jiajia3; Wang, Zhiliang4; Zhang, Suiqi1,4
2016
Source PublicationEUROPEAN JOURNAL OF AGRONOMY
ISSN1161-0301
Volume72Pages:70-79
AbstractIn 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.
SubtypeArticle
KeywordCompetition Dynamics Intercropping Water Equivalent Ratio Leaf Area Index Relative Growth Efficiency
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedAgriculture
DOI10.1016/j.eja.2015.10.001
WOS KeywordPEA-BARLEY INTERCROPS ; RESOURCE USE ; DRY-MATTER ; YIELD ; GROWTH ; GROUNDNUT ; DYNAMICS ; SORGHUM
Indexed BySCI
Language英语
Funding OrganizationNational High Technology Research and Development Program of China(2011AA100504) ; Chinese Education Ministry(B12007)
WOS SubjectAgronomy
WOS IDWOS:000366063000008
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67844
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Suiqi
Affiliation1.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
Recommended Citation
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.
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