Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Helgerson, Ole T."'
Publikováno v:
Soil Science Society of America Journal; January 1999, Vol. 63 Issue: 1 p232-239, 8p
Effects of alternate types of microsite shade on survival of planted Douglas-fir in southwest Oregon
Autor:
Helgerson, Ole T.
Publikováno v:
New Forests; December 1989, Vol. 3 Issue: 4 p327-332, 6p
Autor:
Helgerson, Ole T.
Publikováno v:
New Forests; December 1989, Vol. 3 Issue: 4 p333-358, 26p
Autor:
Helgerson, Ole T.
Publikováno v:
Journal of Forestry; Oct/Nov2005, Vol. 103 Issue 7, p328-369, 2p
Autor:
Pfilf, Dick, Marker, John F., Helgerson, Ole T., Gerhold, Henry D., Olson, Lloyd W., Wolf, Robert E., Pence, Ned N., Burns, Sandy
Publikováno v:
Journal of Forestry; October 2005, Vol. 103 Issue: 7 p327-328, 2p
Publikováno v:
Canadian Journal of Forest Research. Aug1988, Vol. 18 Issue 8, p1082. 0p.
Publikováno v:
Journal of Forestry; Jun1986, Vol. 84 Issue 6, p49, 0p