A 25-year study on pasture in western Queensland has wrapped up and scientists say they have made important discoveries on sustainable grazing.
The trial was undertaken at the Toorak Research Station near Julia Creek.
That facility is to be sold off by the State Government later this year.
Research spokesman Dr David Phelps says some of the plants survived for the duration of the study.
“But I guess it also highlights the importance of keeping research going for as long as you can in these systems where you’ve got really long-lived pastures and we would have got quite different answers for instance if we’d stopped the study after 10 years – which is only a half or a third of a Mitchell grass’ lifetime – compared with now where we’ve pretty much covered the whole lifespan of Mitchell grass,” he said.
It is the longest trial on Mitchell grass ever conducted and spokesman Dr Phelps says it looked at how the pasture responded to different grazing pressures from sheep.
“The main thing for us after 25 years is that we’re now quite confident that if you graze a third of the bulk of the pasture it is quite sustainable and thankfully that also lines up with the finances,” he said.
“So we’ve made good profits out of moderate grazing pressure as well as protecting the pasture at that level.”