Jairo N Diaz-Ramirez

Director

ANR Desert Research & Extension Center
1004 Holton Road
Holtville, CA 92250
760-356-3065
jdiazr@ucanr.edu

http://drec.ucanr.edu

http://drec.ucanr.edu/

Specialty

Areas of Expertise (click to see all ANR academics with this expertise)

• Conservation and Efficient Use of Water
• Watershed Protection and Management
• Soil, Plant, Water, Nutrient Relationships
• Drainage and Irrigation Systems and Facilities
• Geographic Information Systems
• Spanish
• Nutrients and Water in Agricultural Landscapes
• Responding To Climate Change
• Research and Extension Centers
• Water Quality, Quantity, and Security

Bibliography

Peer Reviewed

• Ikendi, S; Pinzon, N, et al.; Koundinya, V; Taku-Forchu, N; Roche, LM; Ostoja, SM; Parker, LE; Zaccaria, D; Cooper, MH; Diaz-Ramirez, JN; Brodt, S; Battany, M; Rijal, JP; and Pathak, TB. (2024). Climate smart agriculture: assessing needs and perceptions of California’s farmers. Frontiers in Sustainable Food Systems.
• Barrera, S; Berny Mier y Teran, J. C, et al.; Aparicio, J; Diaz, J; Leon, R; Beebe, S; Urrea, C. A; Gepts, P. (2024). Identification of drought and heat tolerant tepary beans in a multi-environment trial study. Crop Science.
• Barrales-Heredia, S.M.; Grimaldo-Juárez, O., et al.; Suárez-Hernández, Á.M.; González-Vega, R.I.; Díaz-Ramírez, J.; García-López, A.M.; Soto-Ortiz, R.; González-Mendoza, D.; Iturralde-García, R.D.; Dórame-Miranda, R.F.; Del-Toro-Sánchez, C.L. (2023). Effects of Different Irrigation Regimes and Nitrogen Fertilization on the Physicochemical and Bioactive Characteristics of onion (Allium cepa L.). Horticulturae. 9:3.
• Geisseler, D.; Soto Ortiz, R., et al.; Diaz, J. (2022). Nitrogen Nutrition and Fertilization of Onions (Allium cepa L.) – A Literature Review. Scientia Horticulturae. 291:110591.
• Porch, T.; Barrera, S., et al.; Berny, J.; Diaz-Ramirez, J.; Pastor-Corrales, M.; Gepts, P.; Urrea, C.A.; Rosas, J.C. (2021). Release of Tepary Bean TARS-Tep 23 Germplasm with Broad Abiotic Stress Tolerance and Rust and Common Bacterial Blight Resistance. Journal of Plant Registrations. 1:11.
• Núñez-Ramírez, F.; Escobosa-García, I., et al.; Cárdenas-Salazar, V.; Santillano-Cázares, J.; Ruelas-Islas, J. del R.; Preciado-Rangel, P.; Díaz-Ramírez, J. (2020). Tensión de Humedad del Suelo, Crecimiento, Eficiencia en el Uso del Agua y Rendimiento de Maíz Cultivado en el Noroeste de México. Terra Latinoamericana. 38, 805-815.

Non-Peer Reviewed

• Diaz, J; Magallon, G (2024). Evaluation of Okra Cultivars for Production in Imperial County, CA. University of California, Agriculture and Natural Resources, Imperial County Agricultural Briefs. 27:9.
• Diaz, J.; Soto, R., et al.; Geisseler, and D. (2023). Do Wider Beds in Fresh Market Onion Production Increase Total Water Productivity? Progressive Crop Consultant. Progressive Crop Consultant. September/October.
• Diaz, J.; Buenrostro, J. (2023). Evaluation of Broccoli Cultivars for Production in Imperial County, CA. Imperial County Agricultural Briefs. 26:1. January.
• Diaz, J.; Soto, R., et al.; Geisseler, and D. (2023). Lessons Learned from a 3-year Study on Improving Irrigation and Nitrogen Management in Fresh Market Onions in California. The National Onion Association. 41:2.
• Diaz, J; Soto, R, et al.; Geisseler, D. (2021). Assessing Drip Irrigation and Nitrogen Management of Fresh Onions Produced in California Low Desert. Annual Report. California Department of Food and Agriculture, Fertilizer Research and Education Program. January.
• Diaz-Ramirez, J; Soto-Ortiz, R, et al.; Geisseler, D; Donis-Gonzalez, I (2021). Assessing the Impact of Furrow and Drip Irrigation Systems on Fresh Market Onions in Imperial County, California. American Society of Agricultural and Biological Engineers. San Diego. December 6-8.
• Diaz-Ramirez, J; Soto-Ortiz, R, et al.; Geisseler, D; Donis-Gonzalez, I (2021). Assessing the Impact of Furrow and Drip Irrigation Systems on Fresh Market Onions in Imperial County, California. American Society of Agricultural and Biological Engineers. 4.
• Diaz, J.; Magallon, G., et al.; Buenrostro, J. (2021). Evaluation of Broccoli and Cabbage Cultivars for Production in Imperial County, CA. Imperial County Agricultural Briefs. University of California, Agriculture and Natural Resources. 24:8. https://ceimperial.ucanr.edu/news_359/Ag_Briefs/?newsletteritem=90718
• Fitchette, T; Diaz, J (2021). Researchers study onion crop's nitrogen needs. Western Farm Press.T. Fitchette. February 18. https://www.farmprogress.com/soil-health/researchers-study-onion-crops-nitrogen-needs
• Webb-Martinez, K.; Alviz, K, et al.; Koundinya, V; Meng, Y; Diaz, J; Collins, S; Amparano, S. (2021). Ripple Effect Mapping: Zoom Adaptation. University of California, Division of Agriculture and Natural Resources, CE Program Evaluation. https://ucanr.edu/sites/CEprogramevaluation_style4preview/Measuring_Outcomes/
• Diaz, J; Soto, R, et al.; Geisseler, D. (2020). Assessing Drip Irrigation and Nitrogen Management of Fresh Onions Produced in California Low Desert. Annual Report. California Department of Food and Agriculture, Fertilizer Research and Education Program. January.
• Diaz, J; Soto, R, et al.; Geisseler, D. (2020). Assessing Drip Irrigation and Nitrogen Management of Fresh Onions Produced in California Low Desert. University of California, Agriculture and Natural Resources, Imperial County Agricultural Briefs. 23:8. September.
• Diaz, J; Soto, R, et al.; Geisseler, D. (2020). Toward Improving irrigation and Nitrogen Management in Fresh Market Onions in California Low Desert Region. The National Onion Association. 38:8. October/November.
• Diaz, Jairo; Soto, Roberto, et al.; Geisseler, Daniel; Bornhorst, Gail; Donis-Gonzalez, Irwin (2017). Evaluation of Water Management Techniques and Fertilizer Rates in Onion Production in California’s Low Desert Region. Imperial County Agricultural Briefs. December.
• Wills, Stacey; Collins, Stephanie, et al.; Diaz, Jairo (2017). Imperial Valley Outdoor Wildlife Learning Site (IVOWLS). July.
• Diaz, Jairo; Soto, Roberto, et al.; Geisseler, Daniel; Bornhorst, Gail; Donis-Gonzalez, Irwin (2017). Manejo del Riego y Nitrogeno en Cebolla en el Desierto de California. Imperial County Agricultural Briefs. December.
• Bachie, Oli; Devkota, Pratap, et al.; Diaz, Jairo (2017). Preliminary Results of Imperial Valley Growers Needs Assessment Survey. Imperial County Agricultural Briefs. September.
• Bean, Travis; Bachie, Oli, et al.; Diaz, Jairo (2016). Integrated Weed Management in California’s Desert Melons: Evaluation of Split Herbicide Applications and Plastic Mulch for Weed Control and Crop Injury Under Drip and Furrow Irrigation in Melon-Sudangrass Rotations. December. Project Report, California Melon Research Board

ANR Workgroup Associations

• Desert - Member
• Vegetable Crops - Member

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