Physicochemical Fate of Sulfate in Soils

Sulfate status in soil solution and in surficial groundwater of sandy soils under citriculture1

“…Sulfate is being unintentionally added with fertilizer mixture in the form of each of these states are dependent on several soil properties (Tabatabai, 1987).…”

Long-term sustainability of forest ecosystems on sandstone in the Vosges Mountains (France) facing atmospheric deposition and silvicultural change

“…Indeed, soil samples in the 40-70 cm layer were not collected following the same protocol. The discrepancy may also be due to the mineralization of soil organic matter, releasing mineral sulphur (Tabatabai, 1987;Guillet et al, 1995) or to an under-estimation of atmospheric dry deposition of sulphate (Staelens et al, 2008).…”

Metal-induced sulfate adsorption by soils

“…The total S content of soils varies widely. It ranges from less than 2 mg kg'^ soils in the humid and semihumid cultivated land to more than 50000 mg kg'^ soil in calcareous and saline soils of arid and semiarid regions (Stevenson, 1986;Tabatabai, 1987). The normal range of S in agricultural soils of humid and semihumid regions, however, is estimated to be from 100 to 500 mg kg'^ soil (equivalent to 224 to 1120 kg ha'^ within the plow layer).…”

“…In recent years, there has been an increase in S deficiency in soils for several reasons (Coleman, 1966;Haque and Walmsly, 1974b): (1) the increased use of fertilizers that are low in S; (2) the lower amount of sulfur dioxide (SOg) emissions from powerplants and industries; (3) the decreased use of S containing fungicides and pesticides; (4) the higher crop yields and thus, the greater demand for all nutrients; (5) decreased levels of organic matter due to less use of organic manures; and (6) cropping on poor soils where S can be a limiting factor for plant growth. The plant availability of SO/' in soils is controlled by the factors that affect the adsorption capacity of the soils (such as SO/" concentration, solution pH, hydrous Fe and A1 oxides, type and amount of clay minerals, and competing anions), soil texture, rainfall, drainage characteristics, and the mineralization-immobilization relationships (Stevenson, 1986;Tabatabai, 1987). Because of the subject matter covered in this dissertation, the literature review will be devoted to the sulfate forms in soils.…”

“…The capacity of a soil to adsorb SO^^' could be vital for plant growth and development because adsorption reduces the rate of 80^^' movement in soils, and hence, its loss by leaching (Barrow, 1967;Bolan et al, 1988;Chao et al, 1962a;Tabatabai, 1987). In addition, acid soils that have high SO/' adsorption capacities are more resistant to cation leaching than those that have low 80^^' adsorption capacities (Huete and McColl, 1984;Johnson and Cole, 1977b;Lee and Weber, 1982).…”