The effect of phosphate fertiliser on oaten hay and grain production in Western Australia

摘要

Production of oats for hay and grain export markets is increasing in Western Australia and growers are seeking information on P management of their oat crops. The results of this study suggested that growers should apply a minimum of 10 kg/ha P with oaten hay or grain irrespective of soil P levels. The current research showed 40kg/ha was the optimum rate of P for yield and quality of both oaten hay and grain. Oat varieties differ in their P requirements for hay production and grain. For hay production Carrolup has higher requirement for P whilst for grain Wandering requires more P than Carrolup. Soil analysis is a necessary tool for predicting oat response to P fertilisation. Better response to applied P is expected where soils are deficient in their inherent P level.