Tag Archives: Nitrogen Management

Demonstrating New Approaches to Almond Nitrogen Management

Project Title: Demonstration of a combined new leaf sampling technique for nitrogen analysis and nitrogen applications approach in almonds Project Leaders: Patrick Brown, University of California, Davis; Blake Sanden, University of California Cooperative Extension, Kern County; Allan Fulton, University of California Cooperative Extension, Tehama County; David Doll, University of California Cooperative Extension, Merced County. Project Status: Year 3 of 3 …


Upcoming Events of Interest

The California Department of Food and Agriculture’s Fertilizer Research and Education Program (FREP) will be tabling at a few upcoming events. Stop by to say ‘hello’ and pick up some of FREP’s educational materials on nutrient and irrigation management. Small Farms Conference What: Join us this February in Davis for the 31st annual California Small Farm Conference. This gathering is …


New Technical Advisory Subcommittee Members Appointed

We are pleased to welcome Tom Bottoms and Suduan Gao to the Fertilizer Research and Education Program’s (FREP) Technical Advisory Subcommittee (TASC). TASC reviews and recommends research and education proposals for funding to the department’s Fertilizer Inspection Advisory Board. Tom Bottoms With a background in research, education, and now production, Dr. Tom Bottoms brings technical and applicable research expertise to …


FREP Appearances at Upcoming Events in 2019

The California Department of Food & Agriculture’s Fertilizer Research and Education Program (FREP) will have a booth or table at events in the upcoming months. Stop by to say ‘hello’ and pick up educational materials about nutrient and irrigation management. Plant and Soil Conference What: The California chapter of the American Society of Agronomy hosts this annual conference to promote …


Recap: The 2018 FREP WPHA Annual Conference

The twenty-sixth annual Fertilizer Research and Education Program (FREP) and Western Plant Health Association (WPHA) Conference took place October 23-24, 2018 in Seaside, CA. Speakers from industry, academia, and agricultural consulting provided cutting edge information on nutrient and irrigation management in California agriculture. Below you will find a highlight reel featuring key talks at this year’s conference. The PowerPoint presentation …


2018 FREP Grant Cycle, Phase II

In this year’s competitive grant process, twelve project leaders were invited to submit full proposals. The proposals, listed below, are now under review by experts in the field and the Fertilizer Research and Education Program’s Technical Advisory Subcommittee (TASC). Proposals are evaluated based on scientific merit, applicability to California agriculture, and the potential for impact on stakeholders. Once the proposals have …


Research Update: Nitrogen management of organic leafy green vegetables on the Central Coast

Project Title: “Evaluation and demonstration of nitrogen management of organic vegetable production in leafy green vegetables on the Central Coast” Project Leaders: Richard Smith, Michael Cahn, and Tim Hartz Location: California Central Coast Overview: This project aims to evaluate the proportion of crop nitrogen (N) that is provided by soil organic matter mineralization in organic leafy vegetable production under coastal climate conditions. This research …


Event: Walnut Nitrogen and Irrigation Management Field Day

This field day will demonstrate the results of a FREP-funded study on evaluating the benefits of nitrogen management practices in walnuts. The objective of the study was to understand how split fertilizer applications affect nitrate movement below the root zone. This study also sought to quantify the benefits of efficient nitrogen management practices, including potential cost savings and groundwater protection. …


Event: Biochar Field Day

What: The use of biochar in agriculture is a topic that has been generating interest across California. New products are being developed for agricultural applications, and new research on the effects of biochar in cropping systems is underway at many universities. The California Department of Food and Agriculture’s (CDFA) Fertilizer Research and Education Program (FREP) is teaming up with Department …


Research Update: Improving Nitrate and Salinity Management in Almonds

Project Title: “Improving nitrate and salinity management strategies for almonds grown under micro-irrigation” Project Leaders: Patrick Brown (Professor) and Daniela Reineke (PhD student), Department of Plant Sciences, University of California, Davis Location: Statewide Overview: The primary goal of this project is to develop best management practices that allow California almond growers with micro-irrigation, to effectively leach salts while minimizing nitrate …