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Author Archives: Emad Jahanzad

Research Update: Nitrogen Management for Container Plant Production

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) annual grant program. Project Title: A System Nitrogen Balance for Container Plant Production Project Leaders:  Lorence R. Oki and Bruno J.L. Pitton (University of California, Davis) Project Status: Complete Overview: This FREP-funded …


Registration Open for 2022 Irrigation and Nutrient Management Meeting

The University of California Cooperative Extension (UCCE) is hosting the 2022 Irrigation and Nutrient Management Meeting virtually 7:55 a.m. to 12 p.m. (PT) February 23, 2022. Researchers from University of California, Central Coast Regional Water Quality Control Board, Salinas Valley Basin Groundwater Sustainability Agency, and Central Coast Water Quality Preservation Inc will discuss issues related to irrigation and nutrient management …


CDFA Accepting Concept Proposals for 2022 Fertilizer Research and Education Program Grant Cycle

The California Department of Food and Agriculture’s Fertilizer Research and Education Program (FREP) is now accepting concept proposals for the 2022 grant cycle. FREP’s competitive grant program funds research that advances fertilization practices and minimizes environmental impacts of fertilizing materials. The 2022 Request for Proposals (RFP) includes several initiatives put forth by the department to help effectively manage fertilizing materials in …


2021 FREP/WPH Nutrient Management Conference Recap

The 29th Fertilizer Research and Education Program (FREP) and Western Plant Health (WPH) Nutrient Management Conference was held in San Luis Obispo, CA, October 27-28, 2021. The conference had over 100 attendees including 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 …


Registration, Call for Posters Open for 29th Annual FREP/WPH Nutrient Management Conference

Registration is now open for the 29th annual Nutrient Management Conference, hosted by the California Department of Food and Agriculture (CDFA) Fertilizer Research and Education Program (FREP) and Western Plant Health (WPH). This year’s FREP/WPH Nutrient Management Conference will be held at the Embassy Suites hotel in San Luis Obispo, CA, October 27-28 and includes a farm tour which will …


Research Update: Drip Irrigation and Nitrogen Management of Onions

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) annual grant program. Project Title: Assessing Drip Irrigation and Nitrogen Management of Fresh Onions Produced in California Low Desert Project Leader: Jairo Diaz, Director, Desert Research & Extension Center, University of California, Division of …


Research Update: Biochar as a soil amendment

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) annual grant program. Project Title: Soil biochar amendment to improve nitrogen and water management Project Leaders: Suduan Gao and Dong Wang (United States Department of Agriculture, Agricultural Research Service, San Joaquin Valley Agricultural Sciences …


2020 Nutrient Management Conference Q&As – Session 5: Managed Aquifer Recharge on the Central Coast

The California Department of Food and Agriculture (CDFA) Fertilizer Research and Education Program (FREP) and Western Plant Health Association (WPHA) presented their annual Nutrient Management Conference as a webinar October 28-29. This series of five blog posts links to each conference session and highlights the most common questions asked by the conference audience and presenters’ responses during the Q&A sessions. …


2020 Nutrient Management Conference Q&As – Session 4: Soil and Crop Nutrient Management

The California Department of Food and Agriculture (CDFA) Fertilizer Research and Education Program (FREP) and Western Plant Health Association (WPHA) presented their annual Nutrient Management Conference as a webinar October 28-29. This series of five blog posts links to each conference session and highlights the most common questions asked by the conference audience and presenters’ responses during the Q&A sessions. …


2020 Nutrient Management Conference Q&As – Session 3: Efficient Management Practices in Almonds

The California Department of Food and Agriculture (CDFA) Fertilizer Research and Education Program (FREP) and Western Plant Health Association (WPHA) presented their annual Nutrient Management Conference as a webinar October 28-29. This series of five blog posts links to each conference session and highlights the most common questions asked by the conference audience and presenters’ responses during the Q&A sessions. …