Tree School Online: Christmas Tree Experimenting

  Рет қаралды 224

KnowYourForest

KnowYourForest

2 жыл бұрын

40 years of experimentation with Christmas trees: What's new and what stays the same.
Instructors:
Chal Landgren, Extension Christmas Tree Specialist and Professor, Oregon State University
Judy Kowalski, Extension Christmas Tree Research Technician, Oregon State University

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