2006
Exploring Agrotechnical and Genetic Approaches to Increase the Efficiency of Zinc Recovery in Peach & Pistachio Orchards
Project Leaders: R. Scott Johnson, Steven A. Weinbaum, & Robert H. Beede

2002
The Effect of Nutrient Deficiencies on Stone Fruit Production and Quality
Project Leader: R. Scott Johnson

2000
Minimizing Nitrogen Runoff and Improving Nitrogen Use Efficiency in Containerized Woody Ornamentals through Management of Nitrate and Ammonium-Nitrogen
Project Leader: Donald J. Merhaut

Seasonal Patterns of Nutrient Uptake and Partitioning as a Function of Crop Load of the 'Hass' Avocado
Project Leaders: Richard Rosecrance & Carol J. Lovatt

1997
Long-term Nitrate Leaching Below The Root Zone in California Tree Orchards
Project Leaders: Thomas Harter, Jan Hopmans, and William Horwath

2007
Development of Practical Fertility Monitoring Tools for Drip-Irrigated Vegetable Production
Project Leader: Tim Hartz

2001
Efficient Phosphorus Management in Coastal Vegetable Production
Project Leader: Tim Hartz

Fertilization Technologies for Conservation Tillage Production Systems in California
Project Leaders: Jeff Mitchell & William Horwath

2000
Evaluation of Slow Release Fertilizers for Cool Season Vegetable Production in the Salinas Valley
Project Leaders: Richard Smith & Dr. Tim Hartz

Effect Of Different Rates Of Nitrogen And Potassium On Drop Irrigated Beauregard Sweet potatoes
Project Leaders: Scott Stoddard & Bob Weimer

Reducing Fertilizer Needs of Potato with New Varieties and Clonal Strains of Existing Varieties
Project Leader: Ronald Voss

2006
Fertility Management in Rice
Project Leaders: Chris van Kessel, Bruce Linguist

2001
Field Deployment and Evaluation of Conventional and Precision Application Systems for Liquid and Anhydrous Fertilizer in Sacramento Valley Cropping Systems
Project Leader: Ken Giles

Development of a Leaf Color Chart for California Rice Varieties
Project Leader: Randall G. Mutters

Site-Specific Variable Rate Fertilizer Nitrogen Application in Cotton
Project Leaders: Richard E. Plant, Robert B. Hutmacher, Robert L. Travis, Karen M. Klonsky & D. William Rains

2000
Field Evaluations and Refinement of New Nitrogen Management Guidelines for Upland Cotton: Plant Mapping, Soil and Plant Tissue Tests (Residual Soil Nitrogen and N Management for Acala Cotton)
Project Leaders: Robert Hutmacher, Robert L. Travis, William Rains & Bruce Roberts

Improving The Diagnostic Capabilities For Detecting Molybdenum Deficiency In Alfalfa And Avoiding Toxic Concentrations For Animals
Project Leaders: Roland D. Meyer, Daniel B. Marcum, Steve Orloff

Site-Specific Variable Rate Fertilizer Application in Rice and Sugar Beets
Project Leaders: Richard E. Plant, G. Stuart Pettygrove, Randall G. Mutters & Stephen R. Kaffka

1999
Precision Agriculture in California: Developing Analytical Methods to Assess Underlying Cause and Effect of Within-Field Variability
Project Leaders: Chris van Kessel & J. W. van Groenigen, Randall Mutters & William. Horwath

2007
Development of a Model System for Testing Foliar Fertilizers, Adjuvants and Growth Stimulants
Project Leader: Patrick Brown

Site Specific Fertilizer Application in Orchards, Nurseries, and Landscapes
Project Leader: Michael Delwiche

2001
Evaluating the Impact of Nutrient Management on Groundwater Quality in the Presence of Deep Unsaturated Alluvial Sediment
Project Leader: Thomas Harter

Development of Lime Recommendations for California Soils
Project Leaders: Robert O. Miller, Dr. Janice Kotuby-Amacher & Nat Dellavalle

2000
California Certified Crop Adviser (CCA) Program
Project Leaders: Danielle Blacet, Lora Edwards, Hank Giclas, Marilyn Martin

Ammonia Emission Related to Nitrogen Fertilizer Application Practices
Project Leader: Charles F. Krauter

Teach the Teachers: Garden-Based Education about Fertility and Fertilizers
Project Leader: Peggy Sears Perry

Location of Potassium-Fixing Soils in the San Joaquin Valley and a New, Practical Soil K Test Procedure
Project Leaders: Stuart Pettygrove & Randal Southard

1999
Air Quality And Fertilization Practices: Establishing A Calendar Of Nitrogen Fertilizer Application Timing Practices For Major Crops In The San Joaquin Valley
Project Leader: Jack King, Jr.