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Title: Site Preparation for Jack Pine on Grayling Sands
Author: Cooley, John H.;
Source: Research Note NC-138. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Publication Series: Research Note (RN)
Description: Limited seed supply and inadequate mineral soil exposure were the principal reasons that a cutover jack pine stand on Grayling sand did not regenerate after prescribed burning. Two years after a similar stand was burned only 30 percent of the part that received no supplemental treatment had 4,000 seedlings per acre or more. Areas that were scarified with no supplemental seedling, and other areas that were seeded with no scarification, were both 70 percent stocked with 4,000 seedlings per acre; areas that were both scarified and seeded were 84 to 98 percent stocked at this rate. Scarification with an Athens disk was more effective than scarification with a field cultivator.
Keywords: regeneration, direct seeding, scarification
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Cooley, John H. 1972. Site Preparation for Jack Pine on Grayling Sands. Research Note NC-138. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
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