1998 Annual Reports of Legume dominance and soil acidification Sown pastures and Managing tropical woodlands to control exotic woody weeds

Summary

Tropical pasture legumes that could improve forage quality and animal performance on grazing land and maintain soil fertility in cropping soils were tested in a co-operative (QOPI, CSIRO, UQ, MRC) project. Studies from glasshouse experiments to grazing trails at sites on brigalow and downs soils in southem and central Queensland were undertaken.

Oesmanthus and more recently Caatinga stylo have been successfully established with strong perennial grass and desmanthus has marginally improved liveweight gains of grazing stock.

Testing legumes "on farm" has confirmed the persistence and productivity of Indigofera schimperi, desmanthus and Caatinga stylo and demonstrated the value of Lablab, Milgarra butterfly pea and Macroptilium bracteatum.

Results of testing and experiences gained from understanding the establishment and nutritional requirements of legumes have been communicated by newsletters, displays and field days.