@article{e0d26b5de5a74de9b5717a47fd885cf4,
title = "Nitrogen retranslocation in plants of maize, lupin and cocklebur.",
keywords = "15N N translocation, Lupinus albus L., Phloem transport, Root NRA, Split root, Xanthium strumarium L., Xylem exudate, Zea mays L.",
author = "W.G. Keltjens and J.W. Nieuwenhuis and J.A. Nelemans",
year = "1986",
doi = "10.1007/bf02198116",
language = "English",
volume = "91",
pages = "323--327",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer",
}