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Conversion to No-Till Improves Maize Nitrogen Use Efficiency in a Continuous Cover Cropping System

Author

Listed:
  • Hazzar Habbib
  • Julien Verzeaux
  • Elodie Nivelle
  • David Roger
  • Jérôme Lacoux
  • Manuella Catterou
  • Bertrand Hirel
  • Frédéric Dubois
  • Thierry Tétu

Abstract

A two-year experiment was conducted in the field to measure the combined impact of tilling and N fertilization on various agronomic traits related to nitrogen (N) use efficiency and to grain yield in maize cultivated in the presence of a cover crop. Four years after conversion to no-till, a significant increase in N use efficiency N harvest index, N remobilization and N remobilization efficiency was observed both under no and high N fertilization conditions. Moreover, we observed that grain yield and grain N content were higher under no-till conditions only when N fertilizers were applied. Thus, agronomic practices based on continuous no-till appear to be a promising for increasing N use efficiency in maize.

Suggested Citation

  • Hazzar Habbib & Julien Verzeaux & Elodie Nivelle & David Roger & Jérôme Lacoux & Manuella Catterou & Bertrand Hirel & Frédéric Dubois & Thierry Tétu, 2016. "Conversion to No-Till Improves Maize Nitrogen Use Efficiency in a Continuous Cover Cropping System," PLOS ONE, Public Library of Science, vol. 11(10), pages 1-16, October.
    • Handle: RePEc:plo:pone00:0164234
    DOI: 10.1371/journal.pone.0164234
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    References listed on IDEAS

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    1. J. P. Royston, 1982. "The W Test for Normality," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 31(2), pages 176-180, June.
    2. Moser, Samuel B. & Feil, Boy & Jampatong, Sansern & Stamp, Peter, 2006. "Effects of pre-anthesis drought, nitrogen fertilizer rate, and variety on grain yield, yield components, and harvest index of tropical maize," Agricultural Water Management, Elsevier, vol. 81(1-2), pages 41-58, March.
    3. Bertrand Hirel & Thierry Tétu & Peter J. Lea & Frédéric Dubois, 2011. "Improving Nitrogen Use Efficiency in Crops for Sustainable Agriculture," Sustainability, MDPI, vol. 3(9), pages 1-34, September.
    4. J. P. Royston, 1982. "An Extension of Shapiro and Wilk's W Test for Normality to Large Samples," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 31(2), pages 115-124, June.
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