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Nitrogen deficiency and recovery in sustainable corn production as revealed by leaf chlorophyll measurements

Jun Zhang, Alfred M. Blackmer, Tracy M. Blackmer, Peter M. Kyveryga and Jason W. Ellsworth

Agron. Sustain. Dev., 27 4 (2007) 313-319

DOI: https://doi.org/10.1051/agro:2007023

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