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Full-Text Articles in Life Sciences

Aeration, Phosphorous, And Lime Affect Nitrogen Mineralization In Imperfectly Drained Forest Soils, M. S. Bhangoo, D. J. Albritton, Eugene Shoulders Jan 1976

Aeration, Phosphorous, And Lime Affect Nitrogen Mineralization In Imperfectly Drained Forest Soils, M. S. Bhangoo, D. J. Albritton, Eugene Shoulders

Journal of the Arkansas Academy of Science

Unamended, limed, and phosphorus-enriched Caddo, Beauregard, and Wrightsville silt loams (A1 horizon) were incubated for six months at room temperature under two moisture regimes. At field capacity, unamended soils lost 0.7% of organic matter and converted 166 ppm of organic nitrogen to inorganic forms. Ninety-five percent of the converted nitrogen was present as N₄-H or NO₃-N. Limed and phosphorus-treated soils at field capacity lost about 1.0% of organic matter and accumulated 191 to 201 ppm of inorganic nitrogen. Submerged soils lost very little organic matter and accumulated only 24 to 28 ppm of inorganic nitrogen. There was a loss of …


Dry Matter And Minerals In Loblolly Pine Plantation On Four Arkansas Soils, Timothy T. Ku, James D. Burton Jan 1973

Dry Matter And Minerals In Loblolly Pine Plantation On Four Arkansas Soils, Timothy T. Ku, James D. Burton

Journal of the Arkansas Academy of Science

Average contents of N, P, K, Ca, and Na and total above ground dry matter were determined in 19-year-old unthinned loblolly pine (Pinus taeda L.) plantations in southeastern Arkansas. Three stands were sampled on each of four sites: well and poorly drained coastal plain soils and well and poorly drained loessial soils. Total dry weights, determined from 15 felled trees on each of the 12 plots, ranged from 127,000 kg/ha on poorly drained loessial soil to 173,300 kg/ha on poorly drained coastal plain soil. Ranking of sites, in descending order of production of dry matter, P, K, and Na was: …


Preparation Of Sericea Paper Pulp, John D. Byrd Jan 1952

Preparation Of Sericea Paper Pulp, John D. Byrd

Journal of the Arkansas Academy of Science

No abstract provided.


Some Observations On Mismanagement Of Grasslands And Woodlands, Orrin J. Henbest Jan 1951

Some Observations On Mismanagement Of Grasslands And Woodlands, Orrin J. Henbest

Journal of the Arkansas Academy of Science

No abstract provided.