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[1]GAO Ying,WU Pute,ZHAO Xining,et al.Characteristics of Light Environment and Soil Temperature in the Spring Wheat/Spring Maize Intercropping System[J].Research of Soil and Water Conservation,2015,22(03):163-169.

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Characteristics of Light Environment and Soil Temperature in the Spring Wheat/Spring Maize Intercropping System

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 163-169 Column: Public date: 2015-06-28

Title:: Characteristics of Light Environment and Soil Temperature in the Spring Wheat/Spring Maize Intercropping System

Author(s):: GAO Ying^1,2, WU Pute^1,2,3, ZHAO Xining^1,2,3, WANG Zikui^2,3, SUN Xijun⁴; 1. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2. Institute of Water Saving Agriculture in Arid Regions of China, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China;
4. Agro-technical Extension Station, Weicheng District, Xianyang, Shaanxi 712000, China

Keywords:: intercropping; wheat; maize; photosynthetically active radiation; soil temperature

CLC:: S162.5

DOI:: -

Abstract:: Spring wheat/spring maize intercropping is a common cropping pattern in northwestern China. Field experiments were conducted in the Hetao Irrigation District of the Inner Mongolia in 2013 to analyze the spatiotemporal dynamics of photosynthetically active radiation(PAR) and soil temperature and the effect on the agronomic characters of both wheat and maize among different nitrogen treatments. Results showed that during the early co-growth stage, the PAR accepted by the intercropped maize was much lower than the monoculture, the fraction of light transmitted in intercropped maize was 3.9%～6.3% lower than the monoculture maize, the soil temperature reduced by 2.42～2.63℃; during the later co-growth stage, the fraction of light transmitted in intercropped maize was 19.3% higher than monoculture maize, the soil temperature reduced by 1.51～1.73℃. After wheat harvest, the PAR accepted by the intercropped maize significantly increased, the soil temperature in intercropped maize increased by 2.14～2.37℃. With respect to wheat, the growth of the border plant was better than the inner plant. However, the vegetative growth of intercropped maize was negatively affected, as reflected by the significantly reduced plant height and leaf area. It is concluded that the effects of intercropping system on agronomic characters of component crops were primarily due to the changes in light and temperature environment.

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