The relative strengths of phosphate fertiliser application and white clover cultivar introduction for hill pasture improvement

Authors

  • D.F. Chapman
  • A.D. Mackay
  • B.P. Devantier
  • D.A. Costall
  • P.J. Budding

DOI:

https://doi.org/10.33584/jnzg.2017.79.544

Abstract

Abstract Combinations of four phosphorus (P) fertiliser rates (0, 8.5, 22.5 or 26.5 kg/ha/year of citrate-soluble P) and three pasture types with different white clover germplasm, 'resident' cv. Huia and cv. Tahora were compared in self-contained, replicated farmlets grazed by sheep over 4 years. Fertiliser increased white clover herbage accumulation (HA) 3- to 4-fold compared with the control treatment, and increased total sward HA by 50%. Introduction of Tahora white clover significantly increased white clover and total sward HA and nitrogen fixation compared with the resident and Huia-sown swards. Sheep liveweight gain was significantly greater in all systems fertilised with P (438 versus 243 kg/ha for the unfertilised control) and in systems sown with Tahora (425 versus 372 kg/ha for resident and Huia). Keywords: phosphorus fertiliser, white clover, cultivars, herbage accumulation, animal production

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Published

2017-01-01

How to Cite

Chapman, D., Mackay, A., Devantier, B., Costall, D., & Budding, P. (2017). The relative strengths of phosphate fertiliser application and white clover cultivar introduction for hill pasture improvement. Journal of New Zealand Grasslands, 79, 19–26. https://doi.org/10.33584/jnzg.2017.79.544

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Past volumes

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