David A. Goldhamer Ph.D.
One Shields Avenue
139 Veihmeyer Hall
Davis, CA 95616
Ph.D., University of California, Davis, 1980
There continues to be high demand for information on optimizing irrigation for California's tree fruit and nut orchards. It's clear that while weather-induced droughts will continue to be a periodic problem for tree and vine growers, institutional-related droughts due to demand from municipal and environmental interests must also be addressed. My applied research program deals with developing information on regulated deficit irrigation and I've focused on educating growers about this new approach to water conservation. Since the bulk of my applied research deals with tree response to water, my extension program concentrates on extending this information. My approach is 3-fold; to educate farm advisors and consultants so they can assist their local growers, to speak at grower and industry meetings that I or the farm advisors organize, and to quickly disseminate useful popular publications on the subject.
My applied research and extension education program in irrigation and water management is primarily in the San Joaquin Valley. Research focus is on plant water relations and innovative techniques to improve water use efficiency. Current research projects include regulated deficit irrigation on almonds, pistachios, peaches, olives, wine grapes, and irrigation/disease relations of figs.
SpecialtyWater management of horticultural crops, regulated deficit irrigation, plant water relations, plant-based water status sensors
Areas of Expertise (click to see all ANR academics with this expertise)
- Peaches - General
- Natural Resources and Environment
- Conservation and Efficient Use of Water
California Agriculture Article Contributions
- Can almond trees directly dictate their irrigation needs?
- Buried drip irrigation reduces fungal disease in pistachio orchards
- Simplified tree water status measurements can aid almond irrigation
- Insufficient spring irrigation increases abnormal splitting of pistachio nuts
- Peach trees perform similarly despite different irrigation scheduling methods
- Black Mission fig production improved by heavier irrigation
- Continuous trunk diameter recording can reveal water stress in peach trees
- Water relations of lysimeter-grown peach trees are sensitive to deficit irrigation
- Cracks affect infiltration of furrow crop irrigation
- Hedgerows use more water, but increase efficiency, profit in young walnuts
- Single-season drought irrigation strategies influence almond production
- Early irrigation cutoff has little effect on French prune production
- Cutting off irrigation early may reduce almond hull rot
- Plastic mulch increases cotton yield, reduces need for preseason irrigation
- Reducing drainwater: Furrow vs. subsurface drip irrigation
- Surge vs. continuous-flow irrigation
- Weed control under drip and low-volume sprinkler irrigation