Use of undisturbed cores of surface soil for investigating leaching losses of sulphur and phosphorus

Peverill, K. I.; Douglas, L. A.

doi:10.1016/0016-7061(76)90021-5

Cited by 9 publications

(1 citation statement)

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“…Laboratory and glasshouse studies have shown that many overseas and New Zealand soils have a high potential to lose S via subsurface drainage or leaching (Hogg & Cooper 1964;Hogg 1965;Cooper & Hogg 1966;Muller & McSweeney 1974;Peverill & Douglas 1976). This potential is affected by soil characteristics and fertiliser form (Chao et al 1962;Muller & McSweeney 1974).…”

Section: Introductionmentioning

confidence: 99%

Drainage losses of sulphur from a yellow-grey earth soil

Smith

Gregg

Tillman

1983

New Zealand Journal of Agricultural Research

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Losses of sulphur (S) in surface runoff and subsurface drainage waters were measured during a 2-year study on a grazed yellow-grey earth soil (Tokomaru silt loam). Dissolved sulphur (S) losses in subsurface drainage from pastures fertilised the preceding spring averaged 11.0 ± 3.5 kg S/ha per year. Application of 43 kg S/ha in late autumn-early winter increased dissolved S losses by 4.5 ± 1.5 kg S/ha. Dissolved S concentrations in the drainage were significantly correlated with water-soluble soil S, but total dissolved S losses were not. Losses of dissolved S in surface runoff were markedly affected by fertiliser addition and subsurface drainage. Losses from gently sloping (6°) plots were minimal except when fertiliser S was applied in late autumn to undrained pastures. Under these conditions, 8070 (4.5 kg S/ha) of the applied superphosphate was lost in surface runoff during a 6-week period. In another study, where dissolved superphosphate was applied in autumn, 13% (7.2 kg S/ha) of the applied S was lost in surface runoff from an undrained pasture.

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