Intercropping with wheat leads to greater root weight density and larger below-ground space of irrigated maize at late growth stages
文献类型: 外文期刊
作者: Li, Long 1 ; Sun, Jianhao 3 ; Zhang, Fusuo 2 ;
作者机构: 1.Shihezi Univ, Key Lab Oasis Ecol Agr, Coll Agr, Shihezi 832003, Xinjiang, Peoples R China
2.China Agr Univ, Coll Resources & Environm Sci, Beijing 100094, Peoples R China
3.Gansu Acad Agr Sci, Inst Soils & Fertilizers, Lanzhou 730070, Peoples R China
关键词: intercropping;interspecific interactions;maize;root weight density (RWD);wheat
期刊名称:SOIL SCIENCE AND PLANT NUTRITION ( 影响因子:2.389; 五年影响因子:2.525 )
ISSN: 0038-0768
年卷期: 2011 年 57 卷 1 期
页码:
收录情况: SCI
摘要: Intercropping two species at different growth stages is common in temperate and tropical areas. An apparent recovery of growth is observed in late-maturing species after early-maturing species have been harvested, but the mechanism remained unclear. This study tested the hypothesis that the roots of late-maturing species occupy greater below-ground space at later growth stages. The monolith method was employed to investigate the spatial and temporal distribution of maize grown alone (no interspecific interactions), maize intercropped with wheat (asymmetric interspecific facilitation before wheat harvesting), and maize intercropped with faba bean (symmetric interspecific facilitation) on August 8, September 2 and September 30, after harvesting of wheat (July 15) or faba bean (August 2). The results show that maize intercropped with wheat occupied more below-ground space at late growth stages than at early growth stages when the two crops grew at the same time, thus supporting our hypothesis. Furthermore, we also found that interspecific interactions during the co-growth stage of the two species led to a longer root life span in both maize intercropped with wheat and faba bean compared to the maize grown alone. The findings may partly explain the recovery of late-maturing species found in intercropping systems between two crop species with different growth stages and the complementary effect on the relationship between plant biodiversity and productivity.
- 相关文献
作者其他论文 更多>>
-
Temporal and spatial effects of crop diversity on soil carbon and nitrogen storage and vertical distribution
作者:Wu, Jinpu;Li, Long;Bao, Xingguo;Zhang, Jiudong;Lu, Binglin;Callaway, Ragan M.;Callaway, Ragan M.;Fornara, Dario A.
关键词:Diverse food-production; Intercropping; Root decomposition; Root distribution; Crop rotation
-
Herbigation combined with plastic film mulching to control weeds in maize (Zea mays L.) fields in the Hexi Corridor region, Northwest China
作者:Zhang, Jinwei;Liang, Qian;Jing, Junjie;Tao, Yan;Yu, Pingzhong;Jia, Chunhong;Zhao, Ercheng;Zhao, Jianhua;Sun, Jianhao;He, Yakai;Xie, Yaqiong
关键词:Maize production; Weed control; Herbicide application; Drip irrigation; Film mulching
-
Temporal and spatial effects of crop diversity on soil carbon and nitrogen storage and vertical distribution
作者:Wu, Jinpu;Li, Long;Bao, Xingguo;Zhang, Jiudong;Lu, Binglin;Callaway, Ragan M.;Callaway, Ragan M.;Fornara, Dario A.
关键词:Diverse food-production; Intercropping; Root decomposition; Root distribution; Crop rotation
-
Competition-recovery and overyielding of maize in intercropping depend on species temporal complementarity and nitrogen supply
作者:Zhao, Jianhua;Sun, Jianhao;Chen, Wei;Li, Weiqi;Bao, Xingguo;Bedoussac, Laurent;van der Werf, Wopke;Li, Long
关键词:Intercropping; Companion species; Maize; Nitrogen; Yield; Temporal niche differentiation
-
Two pathways drive enhanced nitrogen acquisition via a complementarity effect in long-term intercropping
作者:Xing, Yi;An, Ran;Yang, Ning;Wu, Jin-Pu;Ma, Huai-Ying;Li, Long;Zhang, Jiu-Dong;Bao, Xing-Guo;Lambers, Hans;Lambers, Hans;Lambers, Hans
关键词:Biodiversity-ecosystem functioning; Biological N-2 fixation; Legume-based intercropping; Selection effect; Soil N-acquiring enzymes
-
Enhanced phosphorus-fertilizer-use efficiency and sustainable phosphorus management with intercropping
作者:An, Ran;Yu, Rui-Peng;Xing, Yi;Li, Long;Zhang, Jiu-Dong;Bao, Xing-Guo;Lambers, Hans;Lambers, Hans;Lambers, Hans
关键词:Interspecific facilitation; Leaf manganese concentrations; Legume; Maize; Oilseed rape; Phosphatase activity; Root morphological trait
-
Crop cultivar mixtures stabilize productivity, partly via facilitation, when conditions are less benign
作者:Su, Ye;Yu, Rui-Peng;Zhang, Wei-Ping;Yang, Hao;Surigaoge, Surigaoge;Li, Long;Sun, Jian-Hao;Zhao, Jian-Hua;Xu, Hua-Sen;Callaway, Ragan M.;Callaway, Ragan M.;Li, Long
关键词:Biodiversity and ecosystem function; Complementarity; Rainfed agriculture; Temporal stability; Variation in annual productivity