Abstract

Title:  Fertilizer effects on the quality of whitetailed deer forages on utility rights-of-way.
Author(s): Harlow, R. F., D. C. Guynn, Jr., and B. W. Pinkerton.
Year: 1992
Abstract: This study measured seasonal nutritive changes in deer forages over a 3-year period on utility rights-of-way (ROW) as influenced by the treatments mow, mow-and-fertilize, burn, burn-and-fertilize, a planted treatment, and a control. Five study sites were located on east facing slopes on Duke Power ROW in the Upper Piedmont of western South Carolina on the 18,000-ac Clemson Experimental Forest in Pickens County. At each study site, six 50 x 50-ft plots were established and treatments were randomly assigned, one treatment per plot. Crude protein (CP) and phosphorous (P) levels in grasses and forbs were significantly higher during spring and winter compared to summer and fall. CP in woody plants was significantly higher during spring and lower during winter compared to the other seasons. P in woody plants was significantly higher during spring compared to the other seasons. Acid detergent fiber (ADF) levels in grasses and forbs, during spring and winter, were significantly lower than during summer and fall. ADF in woody plants was significantly higher during winter compared to the other seasons. Treatment comparisons found that CP was significantly higher in woody plants from planted plots than from all other treatments. CP was significantly higher in woody plants from the treatments mow-and-fertilize and burn-and-fertilize compared to the unfertilized treatments mow, burn, and control. CP and P in grasses and forbs from the treatments planted, mow-and-fertilize, and burn-and-fertilize were significantly higher than from the treatments mow, burn, and control. ADF in woody plants and grasses was significantly lower in the planted treatment compared to all other treatments. Also, in grasses ADF levels were significantly lower in the mow-and-fertilize and burn-and-fertilize treatments compared to the mow, burn, and control treatments. No significant differences in ADF levels in forbs were found between any of the treatments. When the costs of producing CP above control levels for the 3 fertilized treatments were compared, the mow-and-fertilize treatment was the most economical.

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