Grain nutrient concentrations can vary across the farm and may provide an opportunity to cut input costs this fall. Soil test values can vary due to sampling time and lab procedures; it may be worthwhile to monitor the variability of soil test values by sampling at different timepoints post-harvest and sending the same sample (labeled differently) to the lab before committing to a fertilization strategy this fall. Consider evaluating economic return to phosphorus (P) and potassium (K) applications, not just potential yield response this fall, whether that be via an unfertilized or reduced rate check strip, grain sampling for precise maintenance rates, or partial drawdown on applicable acres. Rethinking standard P and K management practices can provide a greater understanding of recommendations and improve economic returns.

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