The York-based Upper Big Blue Natural Resources District is reconsidering its options for controlling nitrate contamination of groundwater.
The district's water and regulations committee will be examining the options at its meeting Tuesday.
A plan to require that farmers use nitrification inhibitors was heavily criticized at a board hearing in March.
The inhibitors are chemicals that slow the rate at which the fertilizer anhydrous ammonia is broken down into nitrates.
Experts say nitrates pose health hazards when they percolate through fields into groundwater supplies.
District manager Rod DeBuhr says the issue boils down to encouraging practices that decrease the potential for the water contamination.
