Nitrogen Phosphorus Load Assessment System (NPLAS) is a software model that predicts the total amount of nitrogen and phosphorus that is lost through runoff or leaching off the farm. This model takes into account the farming operation and on-farm mitigation factors including ponds, wetlands and filter strips.
For assistance in using NPLAS, contact the nutrient assessment officer by calling 0800 ENV BOP (368 267) or emailing info@envbop.govt.nz.
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