Ohio Agricultural Experiment Station. Dept. of Forestry.
الوصف:
(Before & after photos) North end of single row hemlock windbreak at Ewing place, O.A.E.S. Planted 1931, space 3' apart. Thinned in 1936 - 6x6 ft. spacing, and again in Feb. 1956 to 12' spacing. From 1926 seed crop. Item #5657