Publication Date

1997

Description

The objective of this work was to evaluate the steelworks by-product, steelworks slag, for use on established grassland. The effects of three rates of slag application were compared against those of lime and phosphate applications calculated to be equivalent to those applied in slag. Experiments were conducted at seven grassland sites, differing in initial pH, in the north east of England, and the treatments were evaluated in terms of their effects on both soil pH and herbage production over a three year period. Slag was effective at increasing soil pH at all sites, producing responses similar to those of limestone. Positive dry matter (DM) yield responses were observed at five of the seven sites. Effects were often similar to those produced by equivalent liming treatments, but at two sites, a phosphate effect was also apparent.

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An evaluation of the Effectiveness of Steelworks Slag as a Fertilizer for Use on Grassland

The objective of this work was to evaluate the steelworks by-product, steelworks slag, for use on established grassland. The effects of three rates of slag application were compared against those of lime and phosphate applications calculated to be equivalent to those applied in slag. Experiments were conducted at seven grassland sites, differing in initial pH, in the north east of England, and the treatments were evaluated in terms of their effects on both soil pH and herbage production over a three year period. Slag was effective at increasing soil pH at all sites, producing responses similar to those of limestone. Positive dry matter (DM) yield responses were observed at five of the seven sites. Effects were often similar to those produced by equivalent liming treatments, but at two sites, a phosphate effect was also apparent.