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Full-Text Articles in Life Sciences
Control Of Herbaceous Competitors In Progeny Tests Using Container-Grown Seedlings, Jimmie L. Yeiser, J. W. Boyd, D. J. Reed
Control Of Herbaceous Competitors In Progeny Tests Using Container-Grown Seedlings, Jimmie L. Yeiser, J. W. Boyd, D. J. Reed
Journal of the Arkansas Academy of Science
Container-grown and May-planted seedlings of loblolly and shortleaf pines were treated with herbicides for control of herbaceous competitors. Weed control and seedling growth were evaluated. Competitor control was good for all treatments. Survival and growth of pines differed by species and herbicide treatment. The best treatment for both species included covering seedlings and spraying competitors with glyphosate. Both species showed decreased survival and growth when treated with medium and high rates of hexazinone + sulfometuron methyl.
Survival And Growth Two Years After Control Of Herbaceous Competitors In Newly Planted Seedlings Of Loblolly Pine, Jimmie L. Yeiser, J. W. Boyd
Survival And Growth Two Years After Control Of Herbaceous Competitors In Newly Planted Seedlings Of Loblolly Pine, Jimmie L. Yeiser, J. W. Boyd
Journal of the Arkansas Academy of Science
Early or late over-the-top applications of herbicides were used to control herbaceous competition in machine planted loblolly pine (Pinus taeda L) seedlings at two locations in a pasture near Alleene and hand planted seedlings on a bedded site near Fouke. Sites were selected for diverse competitors. None of the treatments controlled weeds for the entire growing season. Only glyphosate + sulfometuron methyl produced seedling survival and growth below the check plots. The best over-the-top treatments were sulfometuron methyl alone or sulfometuron methyl + hexazinone.
Analysis Of Wildfire Occurrence In Southeastern Arkansas, 1984-1987, Richard A. Kluender, Lynne C. Thompson, G. W. Callahan
Analysis Of Wildfire Occurrence In Southeastern Arkansas, 1984-1987, Richard A. Kluender, Lynne C. Thompson, G. W. Callahan
Journal of the Arkansas Academy of Science
Wildfire statistics for Arkansas Forestry Commission District I in southeastern Arkansas were analyzed for the period 1 984 through 1987. A mean of 313 fires and 1103 hectares burned annually during the study period. Most (87%) of the land burned was forested. The greatest number (90%) of wildfires occurred when fire-danger was moderate to high. Most fires were started (90%) and detected (51%) by local residents. Arson was responsible for the majority of fires (68%) and hectares burned (65%). A disproportionately high number (43%) of the incendiary fires occurred in Ashley County. Mean fire size was smaller in this county. …
Arkansas' Timber Resource: Yesterday, Today, And Tomorrow, Richard A. Kluender, R. L. Willett
Arkansas' Timber Resource: Yesterday, Today, And Tomorrow, Richard A. Kluender, R. L. Willett
Journal of the Arkansas Academy of Science
Demand for forest products continues to rise. Arkansas provides about 4% of the U.S. total forest production and about 12% of the south central region production. Questions exist about the ability of current forest resources to completely meet anticipated future demand. In 1985, the U.S. Forest Service and the Arkansas Timber Study Committee began to analyze the existing forest base to determine whether future demand could be met from the current forest, or if not, what management changes were needed to help meet future demand. In 1985, Arkansas forests covered approximately 48% of the total land area of the state. …
Forestry On The Island Of Taiwan, Roc - The State Of The Art, James M. Guldin, Timothy T. Ku, R. Scott Beasley
Forestry On The Island Of Taiwan, Roc - The State Of The Art, James M. Guldin, Timothy T. Ku, R. Scott Beasley
Journal of the Arkansas Academy of Science
The forests of Taiwan vary from lush subtropical vegetation to subalpine coniferous associations. Topography is exceedingly rugged, and stands border on the verge of silvicultural inoperability. In the 1950s and 1960s, the wood products industry in the Republic of China was of paramount importance; the production of high-quality sawtimber from old-growth cypress (Cupressaceae) stands provided the financial capital that built one of the most prosperous national economies in the modern world. In the 1980s, forestry in Taiwan is a curious blend of old methods and new technologies, as modern silvicultural practices are used to reforest cutover cypress stands, to harvest …
Seedling Response In A Greenhouse To Four Rates Of Old And New Paper Mill Sludge, Jimmie L. Yeiser
Seedling Response In A Greenhouse To Four Rates Of Old And New Paper Mill Sludge, Jimmie L. Yeiser
Journal of the Arkansas Academy of Science
Four rates (0, 36, 75, and 11 2 DT/A)of both old and new pulp-mill sludges were tested in a greenhouse for impact on survival and growth of seedlings of loblolly pine (Pinus taeda L). After one growing season no meaningful differences were detected for seedling survival and growth, number off lushes, and decomposition rate for old and new sludges regardless of rate. Seedling foliage showed increases in Mg and Ca and sludges exhibited high pH and increased salinity.