AgroNum & LTE N-fertilizer response curves
Sustainable-agriculture occurs is long-term. Nitrogen-fertilizer response curves from long-term experiments (LTE) for cereal & other non-leguminous field-crops reflect this. For instance, herein a figure taken from Quan et al. 2022 (https://lnkd.in/emwE3gXc) demonstrating that short-term experiments (STE) over-estimate the supply of soil-derived mineral-N to the crop. N-fertilizer recommendations based on such STE responses cannot be sustainable ... in the long-term. Using an AI-based algorithm - AgroNum, Polyor SAS has developed N-fertilizer response curves applicable across Europe (https://lnkd.in/eBmfT3NM). Unique & plot-specific, AgroNum Nf-response curves are in fact very similar in shape to those described by Quan et al. 2022 & other researchers. AgroNum is thus a convenient alternative to traditional - and not necessarily sustainable, balance-sheet approaches to integrated fertilizer managmenent.
