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Research from Kansas State University shows that checking nitrate levels in irrigation water is important for both farms and drinking water safety. Nitrate in water adds to the nitrogen crops get, and if farmers don’t account for it, they may apply too much fertilizer. Excess nitrogen can leak into groundwater, which many rural communities use for drinking.

Nitrate moves easily through soil, and high levels in drinking water can harm health, causing conditions that reduce oxygen in the blood. Because nitrate levels vary by location, testing each water source is essential.

Including irrigation nitrate in nutrient management helps farmers use fertilizer more efficiently, save money, and protect water quality. Producers can test water through commercial labs or Kansas State University services, combining results with soil tests to improve crop production while keeping drinking water safe.