Quin, B., Gillingham, A., Baird, D., Spilsbury, S. and Gray, M. 2015. A comparison under grazing of pasture production, pasture N content and soil mineral N levels between granular urea and ONEsystem® on two contrasting dairy farms in New Zealand. Journal of New Zealand Grasslands. 77, (Jan. 2015), 259–268. DOI:https://doi.org/10.33584/jnzg.2015.77.462.