In this study, N-urea was used to assess uptake, translocation and distribution of nitrogen (N) from urea after application in the autumn to leaves of 1-year old bench grafted apple (Malus domestica Borkh) nursery trees.

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Tree Physiology 22, 1305–1310

SHUFU DONG
Pacific Agri-Food Research Center
Agriculture and Agri-Food Canada
Summerland, BC V0H 1Z0, Canada

LAILIANG CHENG
Department of Horticulture
Cornell University
Ithaca, NY 14853, USA

CAROLYN F. SCAGEL
USDA-ARS
Horticultural Crops Research Laboratory
Corvallis, OR 97330, USA

LESLIE H. FUCHIGAMI
Department of Horticulture
Oregon State University
Corvallis, OR 97331, USA

Attachment: 
PDF icon Nitrogen Absorption, Translocation and Distribution From Urea Applied in Autumn to Leaves of Young Potted Apple (Malus domestica) Trees