Integrative impacts of soil tillage on crop yield, N use efficiency and greenhouse gas emission in wheat-corn cropping system

Authors

  • A.X. Deng Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology & Ecology, Ministry of Agriculture, Beijing 100081, China
  • B.M. Zhang Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology & Ecology, Ministry of Agriculture, Beijing 100081, China
  • C.Y. Zheng Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology & Ecology, Ministry of Agriculture, Beijing 100081, China
  • H. Latifmanesh Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology & Ecology, Ministry of Agriculture, Beijing 100081, China
  • J.L. Huang Dongping County Agricultural Bureau, Dongping County 271000, China.
  • L. Li Dongping County Agricultural Bureau, Dongping County 271000, China.
  • W.J. Zhang Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology & Ecology, Ministry of Agriculture, Beijing 100081, China
  • Y.T. Zheng Dongping County Agricultural Bureau, Dongping County 271000, China.
  • Z.J. Chen Dongping County Agricultural Bureau, Dongping County 271000, China.
  • Z.W. Song Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology & Ecology, Ministry of Agriculture, Beijing 100081, China
Abstract:

Wheat-corn cropping system is one of the most important grain production systems in theworld. However, the integrative impacts of soil tillage on crop yield, N use efficiency (NUE)and greenhouse gases (GHGS) emissions are not well documented in this system. Thus, a twoyear field experiment was carried out in a typical wheat-corn cropping system with four tillageregimes during the wheat season, including no-tillage (NT), rotary tillage (RT), sub-soilingtillage (ST) and sub-soiling with rotary tillage (SRT) in a randomized block design with threereplicates. No-tillage was conducted for all treatments during corn season. Over the two years,the highest yields of wheat, corn and annual were found in the SRT treatment, while the lowestannual yield was found in the NT treatment averagely. Two-year average annual yield in theSRT was 19643.9 kg ha-1, which was 4.8, 5.9 and 7.7% higher than that in the ST, RT and NTtreatments, respectively (P

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Journal title

volume 10  issue 3

pages  317- 333

publication date 2016-07-01

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