O'Connor, P.J., Hennessy, D., Brophy, Caroline, O'Donovan, M. and Lynch, M.B. (2012) The effect of the nitrification inhibitor dicyandiamide (DCD) on herbage production when applied at different times and rates in the autumn and winter. Agriculture, Ecosystems & Environment, 152 (1). pp. 79-89. ISSN 0167-8809