Ohio Agricultural Experiment Station. Dept. of Forestry.
Description:
Tulip poplar beds planted Apr. 1936. Beginning of left, tier 1, sand cover, unshaded; tiers 2,3,4, & 6, sand cover, shaded from July 1 to Aug.1; tiers 5 & 7 compost cover, unshaded. Tier 8, sand cover, unshaded. Item #2896