FREP Website Resources
Registration and Call for Posters Open for 34th Annual FREP/WPH Nutrient Management Conference
The California Department of Food and Agriculture (CDFA) announces registration is open for the 34th Annual Nutrient Management Conference hosted by CDFA’s Fertilizer Research and Education Program (FREP) and Western Plant Health (WPH). This year’s conference will be held at the Hilton Stockton in Stockton, CA, October 28-29, 2026, and includes an optional pre-conference tour of the Port of Stockton 1-4 p.m. October …
Observations from the Field: Visiting FREP Project Assessing Low Desert Crop Nitrogen Removal Coefficients
Note: This is part of a Research and Outreach 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 Determination of Crop Nitrogen Removal Coefficient Values for the Imperial and Coachella Valley Cropping Systems Project Leader Ali Montazar, University of California Cooperative Extension (UCCE) Irrigation …
Project Update: Ventura County Nitrogen Management Training Program
Note: This is part of a Research Update series that highlights projects funded by the California Department of Food and Agriculture Fertilizer Research and Education Program (FREP). Project Title: Ventura County Nitrogen Management Training Program Project Lead: Jodi Switzer, Farm Bureau of Ventura County Project Status: Completed in 2025 Project location: Ventura County, CA Overview: The Ventura County Nitrogen Management Training Program (FREP-funded project) provides tailored education …
Observations from the Field: Central Coast Growers Adopt Winter Cover Crops to Improve Nitrogen Use Efficiency and Facilitate Regulatory Compliance
Note: This is part of a Research and Outreach 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: 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: Nitrogen Management for Industrial Hemp Cultivars
Note: This is part of a Research Update series that highlights projects funded by the California Department of Food and Agriculture Fertilizer Research and Education Program (FREP) . Project Title: Nitrogen Response of Industrial Hemp Cultivars Grown for CBD, Essential Oils Project Lead: Robert B. Hutmacher, UC Davis Project Status: Complete (Three-year project) Project location: Davis and Five Points, CA Overview: This FREP-funded project …
CDFA Announces Vacancies on Fertilizer Inspection Advisory Board Technical Advisory Subcommittee
The California Department of Food and Agriculture is now accepting applications to fill four vacancies on the Fertilizer Inspection Advisory Board’s Technical Advisory Subcommittee (TASC). TASC serves as an expert scientific panel on matters concerning efficient use of fertilizing materials and irrigation water. TASC members advise on Fertilizer Research and Education Program (FREP) activities. For FREP’s annual grant program, members …