Scientia Agricultura Sinica ›› 2011, Vol. 44 ›› Issue (3): 634-640 .

• RESEARCH NOTES • Previous Articles     Next Articles

Ammonia Volatilization in Intercropping Field of Maize with Different Crops

NIE Sheng-wei, CHEN Yuan-quan, SUI Peng, GAO Wang-sheng, HUANG Jian-xiong, LI Yuan-yuan, XIONG Jie, SHI Xue-peng, WU Xue-mei, SUN Zi-guang
   

  1. （中国农业大学循环农业研究中心）
  • Received:2010-06-25 Revised:2010-08-06 Online:2011-02-01 Published:2011-02-01
  • Contact: GAO Wang-sheng

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Abstract:

【Objective】 How to decrease the ammonia volatilization of field is one of the research hotspot recently. In this article, the characteristics of ammonia volatilization were observed in-situ under the intercropping patterns with maize and different crops. 【Method】 In situ experiments combined with venting method were conducted to study the effects of ammonia volatilization in farmlands under maize intercropped with soybean, ryegrass, alfalfa and groundnut in 2008-2009.【Result】The results showed that patterns of maize intercropped with groundnut and maize intercropped with alfalfa could suppress the NH3 volatilization during the maize growing stages, and maize with soybean and maize with ryegrass patterns could increase the NH3 volatilization compared with maize monoculture. The total value of NH3 volatilization under the pattern of maize intercropping groundnut and maize intercropping alfalfa could reduce 6.77-17.42 kg?hm-2 and 1.53-23.63 kg?hm-2, respectively. 【Conclusion】 The results indicated that NH3 volatilization can be effectively reduced in farmland through intercropping with maize and suitable crops (such as groundnut and alfalfa).

Key words: maize, intercropping, planting pattern, NH3 volatilization

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