. Direct seeding of conifers in the lake states : a review of past trials. Conifers; Conifers Seeds; Reforestation Lake States. of 4 years. Many spots, however, had two to nine seedlings. Since most of these were still alive at 10 years, thinning was needed (Roe, 1949a). To be satisfactory, a tool should be designed to de- liver fewer seeds per spot. In 1953, the Station made a rather thorough trial of the Baker seeding tool. This was tested with jack pine and red pine seeds at six different locations on the Tomahawk Sale on the Superior National Forest. Seed was sown in May, June, July, Septe
. Direct seeding of conifers in the lake states : a review of past trials. Conifers; Conifers Seeds; Reforestation Lake States. of 4 years. Many spots, however, had two to nine seedlings. Since most of these were still alive at 10 years, thinning was needed (Roe, 1949a). To be satisfactory, a tool should be designed to de- liver fewer seeds per spot. In 1953, the Station made a rather thorough trial of the Baker seeding tool. This was tested with jack pine and red pine seeds at six different locations on the Tomahawk Sale on the Superior National Forest. Seed was sown in May, June, July, September, and October on duff and on scalped spots with and without screening against rodents. Although the results were generally poor, some differences were evident; these were (Strothmann and Conover, 1960): 1. Spring and summer seedings of jack pine were better than fall seeding. 2. Scalped spots showed no consistent advan- tage over unscalped spots. 3. Screening was definitely beneficial. 4. Best results were obtained from the May and June seedings on an area that had been logged one year previously. Drill Seeding Drill seeding in furrows, using such machines as the Planet Jr. garden seeder, has been tested on both large and small tracts on the Nicolet National Forest in Wisconsin and the Chippewa in Minne- sota (fig. 4). A large seeding on the Nicolet in the spring 1937 failed mostly because of drought, but heavy losses were also caused by smothering of the seedlings by leaf litter during the following winter (Stoeckeler and Limstrom, 1942). A de- tailed examination the second year showed a strik- ing relation between stocking and depth to the water table. Areas where this was at 2 to 3 feet in midsummer had 4,000 to 6,000 seedlings per acre compared to 1,200 or fewer where the water table dropped below 4 feet. Subsequent trials on a small- plot scale showed fair and poor stocking at the end of the second season for fall and spring seedings, respectively. Losses were due most
Size: 2688px × 930px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectconifers
