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玉米-花生间作对作物产量和光合作用光响应的影响

焦念元1,2;赵春3;宁堂原1;侯连涛4;付国占2;李增嘉1;陈明灿2   

  1. 1山东农业大学农学院作物生物学国家重点实验室, 山东泰安 271018
    2河南科技大学农学院, 河南洛阳 471003;3东营职业学院, 山东东营
    257091;4山东轻工业学院, 济南 250100
  • 收稿日期:2007-05-16 修回日期:1900-01-01 出版日期:2008-05-20 发布日期:2008-05-20

Effects of maize-peanut intercropping on economic yield and light response of photosynthesis.

JIAO Nian-yuan1,2;ZHAO Chun3;NING Tang-yuan1;HOU Lian-tao4;FU Guo-zhan2;LI Zeng-jia1;CHEN Ming-can2   

  1. 1State Key Laboratory of Crop Biology, College of Agronomy, Shandong Ag
    ricultural University, Tai’an 271018, Shandong, China;2College of Agrono
    my, Henan University of Science & Technology, Luoyang 471003, Henan, China; 3Dongying Vocation College, Dongying 257091, Shandong, China; 4Shandong College of Light Industry, Jinan 250100, China
  • Received:2007-05-16 Revised:1900-01-01 Online:2008-05-20 Published:2008-05-20

摘要: 研究了玉米-花生间作对玉米、花生经济产量及功能叶片光合作用光响应的影响.结果表明:间作体系总体表现出明显的产量优势,2004和2005年分别为2 896和2 894 kg·hm-2,土地利用率提高了14%~17%;玉米-花生间作提高了玉米功能叶片的光饱和点、光补偿点和强光时的光合速率,降低了花生功能叶片的光补偿点和光饱和点,但提高了花生表观量子效率和弱光时的光合速率.表明间作提高了玉米对强光和花生对弱光的利用能力,从而使间作体系表现出明显的产量优势.

关键词: 长白山森林, 演替阶段, 化学计量特征, 土壤因子

Abstract: A field experiment was conducted to study the effects of maize-peanut intercropping on the economic yield of the two crops and the light response of their functional leaves’ photosynthesis. The results showed that maize-peanut intercropping had an obvious yield advantage, with the total economic yield being 2 896 kg·hm-2 in 2004 and 2 894 kg·hm-2 in 2005, and enhanced the land utilization rate by 14%-17%. For maize’s functional leaves, the intercropping enhanced their light saturation point, compensation point, and photosynthetic rate under strong light; while for peanut’s functional leaves, it reduced their light saturation point and compensation point but nhanced the apparent quantum yield of photosynthesis and photosynthetic rate under weak light, indicating that maize-peanut intercropping enhanced the utilization efficiency of strong light by maize and that of weak light by peanut, making this intercropping system present an obvious yield advantage.

Key words: Changbai Mountains, succession stage, stoichiometric traits, soil factor.