Managing subsoil acidity – preliminary results from the long-term field experiment

Abstract

Key findings •• Significant crop biomass responses were observed on wheat, barley and canola crops at anthesis. •• The large crop biomass responses under organic amendment treatments were largely due to extra nutrients from lucerne pellets. •• The dramatic crop biomass responses observed at anthesis on canola and barley crops did not translate into grain yield under treatments with lucerne pellets applied, due to severe lodging. •• Soil chemical, physical and biological properties will be monitored to understand the soil-plant interactions, the factors driving the differences in crop response to the various treatments and the residual value of the amendments.