@inproceedings{389df97da2da422fb85578536426e9ed,
title = "Does precision N-fertilizer application in grassland make sense?",
abstract = "Productive grassland is under pressure worldwide due to environmental, ecological and economic conditions. This study aims to increase N-use efficiency of grassland with variable rate application (VRA) of fertilizer. We compared a VRA strategy with equal spatial distribution of N fertilizer. A two-year trial was conducted on a sandy soil in the Netherlands. In the first year (2019), the spatial variability of the N yield without N fertilization (YN0) and the maximum N yield at high N fertilization (294 kg ha–1) (YNmax) was assessed. N recovery ranged from 32 to 64%. In the second year (2020), a VRA strategy was tested, based on the results from 2019. Neither average yields (dry matter and N) nor average N-use efficiency were higher with VRA compared to equal N distribution. However, with VRA, a more equal distribution of N use efficiency was found within a field, suggesting the potential to prevent local N surplus or N depletion.",
author = "J. Oenema and G.J. Noij and {van der Vlugt}, P. and C. Kempenaar",
year = "2024",
language = "English",
series = "Grassland Science in Europe",
publisher = "Brill",
pages = "639--641",
editor = "C.W. Klootwijk and M. Bruinenberg and M. Cougnon and N.J. Hoekstra and R. Ripoll-Bosch and S. Schelfhout and R.L.M. Schils and {Vanden Nest}, T. and {van Eekeren}, N. and W. Voskamp-Harkema and {van den Pol-van Dasselaar}, A.",
booktitle = "Why grasslands?",
address = "Netherlands",
note = "30th General Meeting of the European Grassland Federation (EGF2024) : Why grasslands? ; Conference date: 09-06-2024 Through 13-06-2024",
}