@article{6c817120a1c311ddb6ae000ea68e967b,
title = "Crop responses to 15N-labelled organic and inorganic nitrogen sources",
keywords = "Former LIFE faculty, Organic N, Plant etracts, Amino acids uptake, Fertilizer efficiency",
author = "El-Naggar, {Ahmed Hamdy Aly Attia} and Ahmed El-Araby and Neergaard, {Andreas de} and Jensen, {Henning H{\o}gh}",
year = "2008",
doi = "10.1007/s10705-007-9120-8",
language = "English",
volume = "80",
pages = "49--60",
journal = "Nutrient Cycling in Agroecosystems",
issn = "1385-1314",
publisher = "Springer",
number = "1",
}