50 year trends in nitrogen use efficiency of world cropping systems: the relationship between yield and nitrogen input to cropland
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| Description | article by Luis Lassaletta et al published 1 October 2014 in Environmental Research Letters |
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author: Josette Garnier Gilles Billen Bruna Grizzetti Luis Lassaletta |
| Publication date | October 1, 2014 |
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