I am trying to derive the Cate Nelson concept of critical limit determination in MS Excel. I would like to know the step by step detailed derivation of this concept though I derived Bray's percent yield (with and without nutrient from each plot). I followed the paper of Shinde et al 2018 and Cate Nelson 1971. Please guide to perform the same .
Also help me to find the graphical interpolation of this concept manually.