Responsiveness of wheat (Triticum aestivum) to liquid and granular phosphorus fertilisers in southern Australian soils.

Introduction

Phosphorus is the greatest in quantity expensive major nutrient used in broadacre cropping in Australia, with the require to be paid [i]or[/i] undergone of P fertiliser to Australian farmers being approximately $1645 billion by means of year (FIFA 2004) and single third of this worn out on the fertilisation of wheat harvests (Randall 1997). In southern Australia, alkaline and alkaline- calcareous soils (5-90% calcium carbonate, CaC[O.sub.3]) form the majority of soil impressed signs used for cereal production, many of which are well known to have a high P-fixing capacity (McKenzie et al. 1999)

Bertrand et al. (2003) newly showed ...