We started our Department of Agriculture funded project “Developing Sugarcane-Legume Companion Cropping”.
This project is enabled by a collaboration of sugarcane growers, Herbert Cane Productivity Services, DSITIA and BBIFMAC. Including legumes into the sugarcane monoculture may have several benefits, but the main aim here is to partially replace synthetic nitrogen fertiliser with the biologically-fixed nitrogen derived from legumes.
Three field experiments were established in late 2013 in the Wet Tropics, Burdekin and Sunshine Coast. In 2014, we will quantify nitrous oxide (N2O) emissions from several N fertiliser rate-legume combinations to evaluate how legumes affect sugarcane performance and greenhouse gas relations.