Trolove, M.R., T.K. James, A.W. Holmes, M.D. Parker, S.J. McDougall, and M.R. Pirie. “Winter Cover Crops to Reduce Herbicide Inputs in Maize Crops”. New Zealand Plant Protection 70 (July 24, 2017): 171–178. Accessed October 3, 2023. https://journal.nzpps.org/index.php/nzpp/article/view/46.