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Extension Regional Administrator for Wasco and Hood River Counties
We are screening various legume crops for suitability in intercropping with grain. These include low, medium and tall winter peas, various varieties of hairy vetch, various clovers, lentils, medic and fenugreek. To date, peas have been the most successful though we anticipate that newer varieties of hairy vetch may be suitable for intercropping. Vetch is well adapted to the low precipitation regions of the PNW. The newer varieties flower earlier in the season, enhancing nodulation and nitrogen fixation over other crops tried to date.
Other intercrop work compares half and full rates of winter peas with a full rate of winter wheat and varying rates of nitrogen/acre to determine nitrogen value for the wheat crop. We are also exploring the use of hairy vetch as a short-term cover crop prior to fall seeding of winter wheat and with spring wheat to see if we can gain benefits of a late summer cover crop.
Department of Crop and Soil Science
Department of Horticulture
Wasco County Extension Office
400 E. Scenic Dr. Suite 278The Dalles, OR 97058
- Small grain production
- Legume intercropping for soil nitrogen and soil and water quality improvement.
M.B.A., City University, Tacoma, WA, 1989
M.P.A., Public Admin, City University, 1989
M.Ag., Crops & Livestock, Oregon State University 1984
B. Sc., Agronomy & Biology California State University, Fresno, CA 1974
Professor, Oregon State University, Wasco County, OR, 2003-Present
Associate Professor Oregon State University, Wasco County, OR, 2000-2003
Associate Professor Oregon State University, Portland area, OR, 1998-2000
Associate Peace Corps, Armenia, 1994-1998
Associate Professor Oregon State University, Sherman County, OR, 1989-1994
Assistant Professor Oregon State University, Sherman County, OR, 1983-1989
Agriculture Development, ALC, 1976-1982
Missionary West Africa
Vegetable Crops Research Technician, University of California, Davis, CA, 1973-1975
Machado. S., B. Tuck and C. Humphreys. 2005. Alternative Rotation Crops: Peas, pp.66-72. In: Special Report 1061, 2005 Columbia Basin Agricultural Research Center Annual Report.
Ziegenhagen, S., B. Tuck. Living With Nuisance Wildlife. OSU Extension and Experiment Station, EC 1579. 8pp. 2005. (Role: collaborated in collecting data, analysis and manuscript development)
Tuck. B. and D. Maddy. 2005. International Assignment Opportunities. OSU Extension This Month Newsletter, May 2005.
Machado. S., et al. 2005. Developing Profitable & Sustainable Cropping Systems for North Central Oregon, pp. 118-130.In: 2005 STEEP Progress Report. I am a cooperator in this project.
Machado, S., and B. Tuck and C. Humphreys. 2005. Identifying Alternative Rotation Crops, pp. 131- 145. In: 2005 STEEP Progress Report. I am a Co-PI in this project.
Machado, S., et al. 2005. Initiating Long-term Agronomic Experiments in North Central Oregon and South Central Washington, pp. 110-117. In: 2005 STEEP Progress Report. I am a cooperator in this project.