The pastoral model within OVERSEER® Nutrient budgets (Overseer) version 6 includes a change to a monthly input and calculation time step that had started to evolve in the previous version.
2013. In: Accurate and efficient use of nutrients on farms. (Eds L.D. Currie and C L. Christensen). http://flrc.massey.ac.nz/publications.html
Occasional Report No. 26. Fertilizer and Lime Research Centre, Massey University, Palmerston North, New Zealand.