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Carp, kelp and christmas island; where to next with fertilisers?

This PDS project evaluated the performance of selected fertiliser alternatives, relative to both single superphosphate to assess their impact on soil chemical, biological and physical properties, subsequent pasture growth, composition and quality and animal performance. The PDS found most of the alternatives examined in this field study supplied little or none of the three major nutrients, phosphorus, nitrogen or sulphur. In terms of the dry matter production, feed quality, and composition of the field trial pasture, none of the alternatives, nor indeed single superphosphate, had any impact on these parameters over the three seasons of evaluation. The alternatives also had no effect on soil chemical and microbiological properties at the field trial site over the three years, or on the physical softness of surface soils in the winter of 2011. Evaluation of the alternative fertilisers will continue for another two years in 2013/14 and 2014/15 to provide sufficient time to evaluate the alternate fertilisers with different seasons.


Title Size Date published
1.4MB 30/10/2013


Contract No. Title Start date End date Funding type
Carp, Kelp and Christmas Island: where to next for fertilisers?
14/08/2009 29/01/2013

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