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

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posted on 2023-05-03, 19:02 authored by David Chapman, Alec MackayAlec Mackay, Brian DevantierBrian Devantier, Des Costall, Philip Budding
Combinations of four phosphorus (P) fertiliser rates (0, 8.5, 22.5 or 26.5 kg/ha per year of citrate-soluble P) and three pasture type types with different white clover germplasm, ‘resident’ cv. ‘Huia’ and cv. ‘Tahora’ were compared in self-contained, replicated farmlets grazed by sheep over four 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).

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This is an open-access output. It may be used, distributed or reproduced in any medium, provided the original author and source are credited.

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

NZ Grassland Association Inc.

Journal title

Journal of New Zealand Grasslands

ISSN

2463-2872

Citation

Chapman, D. F., Mackay, A. D., Devantier, B. P., Costall, D. A., & Budding, P. J. (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.

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