Section 02.04.15.031 - PHOSPHORUS MANAGEMENTBeef cattle AFOs must utilize either Phosphorus Indexing or Phosphorus Threshold to manage nutrient application.
01.Phosphorus Indexing. The PSI shall be calculated annually by a certified planner for each field receiving land application of manure or process wastewater. A beef cattle AFO must implement best management practices that fully conform to NRCS standards to receive full BMP Coefficient credit. The Department may aware zero (0) or partial credit for non-conformity to NRCS standards.02.Phosphorus Threshold. Land application of phosphorus to fields that have exceeded the soil phosphorus threshold established in the NMS shall be limited to the appropriate crop uptake rate.Idaho Admin. Code r. 02.04.15.031