Precision agriculture claims often float around without a specific, credible source behind them. This one has one, a named university study with a quantified, per-acre dollar figure attached. What the study actually found A 2025 Purdue University study found that farms using drone-based NDVI imaging for nitrogen management reduced fertilizer application by 22% on average while maintaining or slightly increasing yields, creating net savings of $28 to $45 per acre annually on c