Field studies with radioactive sulphur-labelled gypsum fertiliser

Gregg, P. E. H.; Goh, K. M.

doi:10.1080/00288233.1979.10430770

Cited by 10 publications

(1 citation statement)

References 3 publications

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“…This may be explained in terms of the positive influence of these soil constituents on S retention. These results are in concurrence with the findings of Gregg and Goh (1978) who identified S-retention capacity and water-holding capacity as the two major soil properties contributing to observed variations in movement of gypsum-S.…”

Section: Effect Of Soil Properties Source Of Sulfur and Initial Soisupporting

confidence: 91%

Adsorption and translocation of sulfur in some tropical acid soils

Biswas

Rattan²,

Datta

et al. 2003

Z. Pflanzenernähr. Bodenk.

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SummaryIn view of growing concern about sulfur (S) deficiency, we attempted to study the effect of soil characteristics on the adsorption and translocation of S in soils. Laboratory experiments were conducted with five surface soils collected from three regions in the state of Orissa (Eastern India). In an adsorption study, all the soils were equilibrated with graded doses of potassium sulfate (K 2 SO 4 ). Freundlich adsorption isotherms provided good fit to S adsorption data. Free Fe 2 O 3 and Al 2 O 3 in the soils were primarily responsible for retaining added S in soils. Further, studies on the movement of sulfate-S in 30-cm plexiglass columns, where radio-labeled S along with water (5 cm) was applied as gypsum and K 2 SO 4 , showed that K 2 SO 4 -S migrated deeper than gypsum-S. Sulfur moved deeper in case of initially water-saturated soils than in initially airdry soils.

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Section: Effect Of Soil Properties Source Of Sulfur and Initial Soisupporting

confidence: 91%