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

Hazzar Habbib, Julien Verzeaux, Elodie Nivelle, David Roger, Jérôme Lacoux, Manuella Catterou, Bertrand Hirel, Frédéric Dubois and Thierry Tétu

PLOS ONE, 2016, vol. 11, issue 10, 1-16

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.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0164234

DOI: 10.1371/journal.pone.0164234

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