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Atrazine sorption and fate in a Ultisol from humid tropical Brazil
Chemosphere, 2007This study combined laboratory based microcosm systems as well as field experiments to evaluate the mobility of atrazine on a Ultisol under humid tropical conditions in Brazil. Results from sorption experiments fit to the Freundlich isotherm model [K(f) 0.99 mg kg(-1)/(mg l(-1))(1/n)], and indicate a low sorption capacity for atrazine in this soil and ...
F V, Correia +3 more
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Moderately resistant phosphorus forms in subtropical ultisol of Argentina
Communications in Soil Science and Plant Analysis, 2000Abstract The efficiency of phosphorus (P) fertilization may be improved through knowledge of soil P fraction changes with time. This study examined: i) the distribution of P fractions according to Hedley's fractionation scheme and ii) the sequential changes in soil organic P (OP) and inorganic P (IP) in a typical Kandihumult, under favorable conditions
Marta Susana Zubillaga, Lidia Giuffré
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Geomorphic Relationships of Oxisols and Ultisols on Kauai, Hawaii
Soil Science Society of America Journal, 1974Abstract A succession of Eutrustox‐Eutrorthox‐Gibbsiorthox‐Gibbsihumox occurring in northeastern Kauai, Hawaii, is shown to be a climosequence. These soils developed synchronously on basic lavas forming one geomorphic surface of Pleistocene age.
F. H. Beinroth, G. Uehara, H. Ikawa
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KAOLINITE-GIBBSITE THERMODYNAMIC RELATIONSHIP IN ULTISOLS
Soil Science, 1973K. H. TAN, H. F. PERKINS, R. A. McCREERY
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Disponibilidad de micronutrientes en andisoles y ultisoles de la region de los lagos
, 1984Rodriguez-Perez Ja, M. Tomic
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Suministro de K de los andisoles y ultisoles de la región de la Araucanía
, 1984A. Montenegro, J. Rodríguez
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