Old Castle Labs in Oldcastle, Co. Meath provides soil testing geared towards helping farmers comply with the Nitrates regulations. Analysis determines phosphorus levels and nutrient status to guide fertiliser application rates and phosphorus index classification.

Reports include LPIS parcel numbers or georeferenced GPS coordinates as required, and results remain valid for four years for regulatory purposes. That supports farmers stocking above 130 kg organic nitrogen per hectare and those managing tillage land.