Tsimba, R., T. Gunn, R. Densley, I. . Williams, G. Edmeades, and J. Millar. “Quantification and Mitigation of Nitrogen Leaching in a Maize Silage Cropping System”. Journal of New Zealand Grasslands, vol. 83, Feb. 2022, pp. 163-70, doi:10.33584/jnzg.2021.83.3506.