EFFECTS OF MAIZE (ZEA MAYS L.) INTERCROPPING WITH LEGUMES ON NITROUS OXIDE (N2O) EMISSIONS
文献类型： 外文期刊
作者： Chen, J. S. 1 ; Amin, A. S. 1 ; Hamani, A. K. M. 1 ; Wang, G. S. 1 ; Zhang, Y. Y. 1 ; Liu, K. 3 ; Gao, Y. 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Farmland Irrigat, Key Lab Crop Water Use & Regulat, Minist Agr & Rural Affairs, Xinxiang 453002, Henan, Peoples R China
2.Chinese Acad Agr Sci, Grad Sch, Beijing 10081, Peoples R China
3.Shanghai Ocean Univ, Coll Econ & Management, Shanghai 201306, Peoples R China
关键词： soybean; peanut; global warming potential; nitrogen rate; cumulative N2O emissions
期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.711； 五年影响因子：0.797 ）
ISSN： 1589-1623
年卷期： 2021 年 19 卷 5 期
页码：
收录情况： SCI
摘要： To investigate the effects of maize/legume intercropping on soil N2O emissions, six treatments were tested in the North China Plain: maize, M120 (N application rate 120 kg ha-1); maize, M240 (N application rate 240 kg ha-1); soybean (Glycine max), SS (120 kg ha-1); maize/soybean intercropping, MS (120 kg ha-1); peanut (Arachis hypogaea), PP (120 kg ha-1); and maize/peanut intercropping, MP (120 kg ha-1). The amounts of inorganic nitrogen for the 0-20 cm soil in MS were 24.0%, 5.3%, and 29.3% lower than in SS, M120, and M240, respectively (P < 0.05). The total N2O emissions ranged from 0.41 +/- 0.09 to 0.98 +/- 0.14 kg ha-1. MP and MS were statistically different at the 95% confidence level, whereas MP produced the least N2O emissions at 0.41 kg ha-1. The seasonal cumulative N2O emissions and global warming potential in MS and MP were also significantly lower than those in the other three monoculture treatments (P < 0.001). The results demonstrated that maize/legume intercropping can increase the N uptake of crops and reduce the amount of soil inorganic nitrogen and N2O emissions, thereby, ensuring the sustainability of the agricultural environment.
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