Nutrient Management Research Database

This presentation gives an in-depth analysis of the current state of groundwater nitrate in California.

Topics covered include:

• The 'Harter Report.'
• Groundwater nitrate pollution.
• Regional and state water quality control boards.
• How nitrate gets to the groundwater.
• Analysis of regulatory options
• The nitrate leaching hazard index
• The agricultural expert panel recommendations for a regulatory framework.
  • Focus on aspects of nitrogen cycle we can measure
  • Form grower coalitions with third party administrative support, including data reporting on field characteristics
  • Measure A/R ratio
  • Improve grower education and outreach
  • Continue targeted research to identify crop N uptake and removal and sampling protocols