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


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.

SUBMITTER: Habbib H 

PROVIDER: S-EPMC5053546 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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

Habbib Hazzar H   Verzeaux Julien J   Nivelle Elodie E   Roger David D   Lacoux Jérôme J   Catterou Manuella M   Hirel Bertrand B   Dubois Frédéric F   Tétu Thierry T  

PloS one 20161006 10


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 yiel  ...[more]

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