Caradus, John R, Adrian Russell, Tim J Chapman, Lisa Wood, and Paul Bowater. “A New Winter Active Crop to Improve Soil Nitrogen Uptake”. Journal of New Zealand Grasslands 80 (December 3, 2018): 185–190. Accessed November 6, 2026. https://www.nzgajournal.org.nz.myth.agency/index.php/JoNZG/article/view/316.