@inproceedings{534ae2737d754532805ff30d0dc82780,
title = "Nitrogen use efficiency and productivity of foods crops in cereal-based agroecosystems",
author = "J.H.J. Spiertz and J. Vos",
year = "2005",
language = "English",
isbn = "9781933100104",
pages = "259--265",
editor = "Z. Zhu and K. Manami and G. Xing",
booktitle = "3rd International Nitrogen Conference: Nanjing, 12-16 October 2004 Contributed papers",
publisher = "Science Press",
address = "China",
note = "3rd International Nitrogen Conference ; Conference date: 12-10-2004 Through 16-10-2004",
}