Tag Archives: Nutrient Management

Research Update: Online Training Provides California Certified Crop Advisors with Nitrogen Management Expertise

Note: This is part of a Research Update series that highlights projects funded by the California Department of Food and Agriculture’s (CDFA) Fertilizer Research and Education Program (FREP) annual grant program. Project Title: Next Generation N Management Training for Certified Crop Advisors Project Leaders: Sat Darshan Khalsa, Professional Researcher, UC Davis; Erik Porse, Director, California Institute for Water Resources; Marina Vergara, …


2025 FREP/WPH Nutrient Management Conference Recap

The 33rd Annual Fertilizer Research and Education Program (FREP) and Western Plant Health (WPH) Nutrient Management Conference was held in Fresno, CA, October 29-30, 2025. This year’s conference brought together attendees from academia, crop consultants, growers, industry representatives, researchers, and government personnel. This blog provides a quick recap of the event; for more detailed information, including summaries from presented FREP projects, …


Research Update: Adoption of Cover Crops to Minimize Residual Nitrogen Loss

Note: This is part of a Research Update series highlighting projects funded by the annual, competitive grant of the California Department of Food and Agriculture (CDFA) Fertilizer Research and Education Program (FREP). Project Title: Facilitating Grower Adoption of Cover Crop Nitrogen Scavenging to Minimize Residual Nitrogen Loss and Comply with the Irrigated Lands Water Quality Protection Program (Ag Order 4.0) …


Research Update: Certification and Distance Learning for Fertigation

Note: This is part of a Research Update series that highlights projects funded by the California Department of Food and Agriculture (CDFA), Fertilizer Research and Education Program (FREP). Project Title: Certification and Distance Learning for Fertigation Project Lead: Dr. Stuart Styles, Irrigation Training and Research Center (ITRC), Cal Poly State University in San Luis ObispoProject Status: Complete (3-year project) Project location:  ITRC, Cal Poly State University …


Research Update: Site-Specific Fertilization Recommendations for Annual Crops

Note: This is part of a Research Update series that highlights projects funded by the California Department of Food and Agriculture’s (CDFA) Fertilizer Research and Education Program (FREP). Project Title: Development of Site-specific Nitrogen Fertilization Recommendations for Annual Crops Project Lead: Daniel Geisseler, Cooperative Extension Specialist, Department of Land, Air and Water Resources, University of California, Davis Project Status: Complete Project location: Field trials in commercial …


Nitrogen Management in Citrus Video Offers New Option for Continuing Education Credit

As part of its Crop Nutrient Minute video series, the Coalition for Urban Rural Environmental Stewardship (CURES) recently released a video in English and Spanish for Nitrogen Management in Citrus featuring University of California Cooperative Extension (UCCE) Kings County Area Farm Advisor Dr. Douglas Amaral. The video is available under the Self-Study Video Course List dropdown menu on the California …