Nitrogen Fertilizer & N2O Emissions Lab (2D)

This 2D companion drives the same field-agronomy model as the 3D version — a saturating crop-uptake curve against a non-saturating, accelerating microbial N2O curve — through a flat top-down field of colored crop dots instead of a rendered 3D scene, so the yield-versus-emissions trade-off stays legible at a glance. Drag the nitrogen-rate slider, switch soil moisture or crop type, and watch surplus-nitrogen patches spread and gas markers vent off the field once fertilizer overshoots what the crop can actually absorb.