玉米/大豆间作系统的作物资源竞争

应用生态学报

玉米/大豆间作系统的作物资源竞争

吕越^1,2,3,吴普特^1,2,3,4**,陈小莉^2,3,4,王玉宝^1,2,3,4,赵西宁^1,2,3,4

(¹西北农林科技大学水利与建筑工程学院，陕西杨凌 712100； ^2西北农林科技大学中国旱区节水农业研究院，陕西杨凌 712100； ³国家节水灌溉杨凌工程技术研究中心，陕西杨凌 712100； ⁴中国科学院水利部水土保持研究所，陕西杨凌 712100)

出版日期:2014-01-18 发布日期:2014-01-18

Resource competition in maize/soybean intercropping system.

LU Yue^1,2,3, WU Pu-te^1,2,3,4, CHEN Xiao-li^2,3,4, WANG Yu-bao^1,2,3,4, ZHAO Xi-ning^1,2,3,4

(¹College of Water Resources and Architectural Engineering, Northwest A＆F University, Yangling 712100, Shaanxi, China; ^2Institute of Water Saving Agriculture in Arid Regions of China, Yangling 712100, Shaanxi, China; ³National Engineering Research Center for Water Saving Irrigation at Yangling, Yangling 712100, Shaanxi, China; ⁴Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi, China)

Online:2014-01-18 Published:2014-01-18

摘要/Abstract

摘要：

通过分析不同分隔方式下\[地上地下均不分隔(T₁)、地上地下均分隔(T₂)、仅地下分隔(T₃)、仅地上分隔(T₄)\]玉米/大豆间作系统的土壤储水量、作物生长发育、生物量及产量，研究了间作作物间的资源竞争.结果表明： T₁中玉米行120 cm土层平均土壤含水量比其他处理低3.1%~12.9%，大豆行比其他处理低2.8%~12.5%.与T₁相比，T₂、T₃和T₄的玉米生育进程均有所推后，株高、叶面积、生物量累积、籽粒产量及产量构成因素均降低；大豆则与之相反.综上，玉米/大豆间作系统作物生长和产量的变化是由于地上部与地下部综合作用的结果，且地下部作用大于地上部.

Abstract:

The soil water storage, growth development, biomass and yield in maize/soybean intercropping system under different separation methods were measured to analyze the resource competition of the intercropping crops. The treatments included no shoot or root separation (T₁), shoot and root separation (T₂), only root separation (T₃), and only shoot separation (T₄). Results indicated that compared to others, the average soil moisture content in the 0-120 cm soil layer decreased by 3.1%-12.9% in maize line, and by 2.8%-12.5% in soybean line for T₁. Compared to T₁, maize growth stage in T₂, T₃ and T₄ came late, and the plant height, leaf area and cumulative total biomass, yield and yield components all decreased, while the trends found for soybean were the opposite. In summary, the changes of crop growth and yield in the maize/soybean intercropping system were driven by the interactions of above and belowground parts, and the belowground part played a more important role.

吕越1,2,3,吴普特1,2,3,4**,陈小莉2,3,4,王玉宝1,2,3,4,赵西宁1,2,3,4. 玉米/大豆间作系统的作物资源竞争[J]. 应用生态学报.

LU Yue1,2,3, WU Pu-te1,2,3,4, CHEN Xiao-li2,3,4, WANG Yu-bao1,2,3,4, ZHAO Xi-ning1,2,3,4. Resource competition in maize/soybean intercropping system.[J]. Chinese Journal of Applied Ecology.