Phosphorus requirements of tropical grazing systems: the northern Australian experience

@article{McIvor2011PhosphorusRO,
  title={Phosphorus requirements of tropical grazing systems: the northern Australian experience},
  author={J. G. McIvor and C Guppy and Merv E. Probert},
  journal={Plant and Soil},
  year={2011},
  volume={349},
  pages={55-67}
}
Extensive grazing is common on low phosphorus (P) soils in tropical areas. In this study we aimed to use experience and research results from northern Australia to investigate methods to manage low P status to efficiently raise animals without exploiting soil P resources. Simple “farm-gate” P balances were calculated for four cattle breeding and growing operations. Estimated P balances were slightly negative (outputs>inputs) for extensive breeding operations (0.02 to 0.04 kg/ha/year depending… CONTINUE READING