Initial Effects of Prescribed Burning and Understory Fertilization on Browse Production in Closed-Canopy Hardwood Stands

Abstract Forage production for white-tailed deer Odocoileus virginianus is often limited in closed-canopy forests. We measured browse production and nutritional carrying capacity after prescribed burning and understory fertilization in closed-canopy hardwood stands one growing season after treatment in two physiographic regions of Tennessee. Nutritional carrying capacity estimates for prescribed burning, fertilization, and prescribed burning with fertilization were greater than in controls on the Cumberland Plateau. However, the cost per pound of forage produced after fertilization exceeded US$26. In the Coastal Plain, fertilization did not affect nutritional carrying capacity, and prescribed burning and prescribed burning with fertilization lowered nutritional carrying capacity from controls. At both sites, prescribed fire had minimal effect on soil pH or soil phosphate and potash levels. Our results suggest prescribed fire and fertilization are of limited utility for increasing browse production in clos...

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