Nutrient Management

Supplemental Information for the Nitrogen Tracking and Reporting Taskforce

The Nitrogen Tracking and Reporting The Task Force was comprised of 28 people representing agriculture; the environmental and environmental justice communities; local, regional and state governments; and both of California's university systems (the University of California and California State University). This Nitrogen Tracking and Reporting Task Force was charged with implementing Recommendation 11 of several recommendations made to the Legislature by the State Water Board: "CDFA, in coordination with the Water Boards, should convene a Task Force to identify intended outcomes and expected benefits of a nitrogen mass balance tracking system in nitrate high-risk areas. The Task Force should identify appropriate nitrogen tracking and reporting systems, and potential alternatives, that would provide meaningful and high quality data to help better protect groundwater quality." Through several meetings, presentations by subject matter experts and discussion, the Task Force members came to general agreement on several components of an effective nitrogen tracking and reporting system. Download the final report . Below are supplemental information such as information on existing nitrogen tracking and reporting systems made by subject matter experts.

Task Force Supplemental Information

• Nitrogen Task Force Final Report News Release
• Nitrogen Task Force Charter
• Presentations and Systems Considered (Appendix B of final report — please note the presentation below are not listed in any particular order including order of importance)
  1. Doug Patteson, Central Valley Regional Water Quality Control Board
     — Dairy Nutrient Planning
  2. Parry Klassen, East San Joaquin Water Quality Coalition
     — Nitrogen Management Approach
  3. Angela Schroeter, Central Coast Regional Water Quality Control Board
     — Data Management and Reporting
  4. Larry Wilhoit PhD, California Department of Pesticide Regulation
     — Pesticide Use Reporting System
  5. Amadou Ba PhD, CDFA
     — Fertilizing Materials Tonnage Reporting
  6. Krijn Poppe MSc, LEI Wageningen UR
     — Dutch Mineral Accounting System Minus
  7. Thomas Harter PhD, University of California, Davis
     — N Tracking Analysis to Estimate Groundwater Loading
  8. Doug Parker PhD, University of California Institute for Water Resources
     — Nutrient Reporting In Maryland
  9. Edward J. Hard, CDFA / Richard Ferguson PhD, University of Nebraska, Lincoln
     — Nebraska’s Central Platte Valley Groundwater Management Program
  10. David Zoldoske EdD, California State University, Fresno
      — Wateright Online Irrigation Scheduling
  11. Joel Kimmelshue PhD, Land IQ
      — Consideration of a Nitrate Hazard Index for Reporting and Tracking
  12. Tim Hartz PhD, University of California, Davis
      — CropManage Software for Irrigation and Nitrogen Management
  13. Hank Giclas, Western Growers Association
      — Performance Metrics for Specialty Crops: A Common Yardstick

Contact Information

For questions. please contact Dr. Amrith Gunasekara, Science Advisor to the Secretary, at 916-654-0433 or EcoSysServices@cdfa.ca.gov.