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Ratings & reviews

5.08/20/2025

Always positive and enthusiastic in class.

5.03/31/2025

Brings passion and energy to teaching.

4.02/27/2025

Encourages innovative and creative solutions.

4.02/27/2025

Always positive and motivating in class.

5.02/9/2025

I’m so grateful for your respectful and inclusive approach. You created a safe space where all students felt heard and valued.

5.02/6/2025

I’m so grateful for your respectful and inclusive approach. You created a safe space where all students felt heard and valued.

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About Valtcho

Valtcho Jeliazkov is an Associate Professor in the Department of Crop and Soil Science within the College of Agricultural Sciences at Oregon State University. He earned a Ph.D. in Plant and Soil Sciences from the University of Massachusetts in 2001 and a Ph.D. in Agronomy from the Higher Institute of Agriculture in Plovdiv, Bulgaria, in 1988. Before joining Oregon State University, he served as an Associate Professor in Plant Science and Director of the Sheridan Research and Extension Center at the University of Wyoming from 2010 to 2014. Currently, he directs the Online Graduate Certificate in Organic Agriculture program and serves as Principal Investigator for the NIFA-funded Hemp Education Initiative, which develops online undergraduate and graduate certificates in hemp. Jeliazkov accepts graduate students in the Crop and Soil Science Department and teaches courses including Introduction to Organic Food Production (AGRI 420/520), Organic Soil and Crop Management (CROP/SOIL 530), Herbs, Spices and Medicinal Plants (HORT 421/521), and Oilseeds and Essential Oil Crops (ST CROP 499/599).