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

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 signific...

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Bibliographic Details
Published in:PloS one 2016-10, Vol.11 (10), p.e0164234-e0164234
Main Authors: Habbib, Hazzar, Verzeaux, Julien, Nivelle, Elodie, Roger, David, Lacoux, Jérôme, Catterou, Manuella, Hirel, Bertrand, Dubois, Frédéric, Tétu, Thierry
Format: Article
Language:English
Subjects:
Agricultural practices
Agricultural production
Agriculture
Agronomy
Biology and Life Sciences
Biomass
Cereals
Collaboration
Conversion
Corn
Cover crops
Crop yield
Cropping systems
Ecology and Environmental Sciences
Efficiency
Fertilization
Fertilizers
Fertilizers - analysis
Grain
Life Sciences
Nitrogen
Nitrogen - metabolism
No-tillage
Phosphorus
Physical Sciences
Physiology
Principal Component Analysis
Research and Analysis Methods
Short term
Soil - chemistry
Triticum durum
Verne, Jules (1828-1905)
Wheat
Zea mays - metabolism
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Summary: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.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0164234