Spatial variability of soil phosphorus in grazing systems

Mark Trotter; Warwick Badgery; Joshua Barron; Christopher Guppy; Rebecca Haling; David Mitchell; Geoff Millar

Spatial variability of soil phosphorus in grazing systems

Mark Trotter, Warwick Badgery, Joshua Barron, Christopher Guppy, Rebecca Haling, David Mitchell, Geoff Millar

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Phosphorus (P) use efficiency has been identified as a key issue for Australian grazing systems. This project examined the spatial variability in soil P concentration from two separate surveys of grazed pasture fields. A field on the central tablelands of NSW had a range in Bray P of 1.2 to 140 mg/kg and a COV of 107%. The other field on the northern tablelands of NSW reported a range in Colwell P from 13.0 to 121.1 mg/kg and a COV of 59%. Maps of the spatial variability of soil P demonstrated that there is a relationship with field elevation. Application of critical P values to both fields enabled an estimation of the value of site specific fertiliser management. For one field, fertiliser inputs could potentially be isolated to 37% and the other 56% if nutrient additions were targeted at responsive areas. The opportunity for increased fertiliser use efficiency through site specific management (SSM) warrants further investigation. Research is required into both the value of SSM and the techniques that might enable the development of this strategy.

Original language	English
Title of host publication	Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress
Editors	David L Michalk, Geoffrey D Millar, Warwick B Badgery, Kim M Broadfoot
Place of Publication	Orange, Australia
Publisher	NSW Government, Department of Primary Industry
Pages	856-859
ISBN (Print)	9781742565439, 9781742565422
Publication status	Published - 2013
Event	IGC 2013: 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities - Sydney, Australia Duration: 15 Sept 2013 → 19 Sept 2013

Conference

Conference	IGC 2013: 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities
City	Sydney, Australia
Period	15/09/13 → 19/09/13

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 2 Zero Hunger

Keywords

Agricultural Spatial Analysis and Modelling

Access to Document

https://hdl.handle.net/1959.11/14146

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Trotter, M., Badgery, W., Barron, J., Guppy, C., Haling, R., Mitchell, D., & Millar, G. (2013). Spatial variability of soil phosphorus in grazing systems. In D. L Michalk, G. D Millar, W. B Badgery, & K. M Broadfoot (Eds.), Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress (pp. 856-859). NSW Government, Department of Primary Industry. https://hdl.handle.net/1959.11/14146

Trotter, Mark ; Badgery, Warwick ; Barron, Joshua et al. / Spatial variability of soil phosphorus in grazing systems. Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress. editor / David L Michalk ; Geoffrey D Millar ; Warwick B Badgery ; Kim M Broadfoot. Orange, Australia : NSW Government, Department of Primary Industry, 2013. pp. 856-859

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title = "Spatial variability of soil phosphorus in grazing systems",

abstract = "Phosphorus (P) use efficiency has been identified as a key issue for Australian grazing systems. This project examined the spatial variability in soil P concentration from two separate surveys of grazed pasture fields. A field on the central tablelands of NSW had a range in Bray P of 1.2 to 140 mg/kg and a COV of 107\%. The other field on the northern tablelands of NSW reported a range in Colwell P from 13.0 to 121.1 mg/kg and a COV of 59\%. Maps of the spatial variability of soil P demonstrated that there is a relationship with field elevation. Application of critical P values to both fields enabled an estimation of the value of site specific fertiliser management. For one field, fertiliser inputs could potentially be isolated to 37\% and the other 56\% if nutrient additions were targeted at responsive areas. The opportunity for increased fertiliser use efficiency through site specific management (SSM) warrants further investigation. Research is required into both the value of SSM and the techniques that might enable the development of this strategy.",

keywords = "Agricultural Spatial Analysis and Modelling",

author = "Mark Trotter and Warwick Badgery and Joshua Barron and Christopher Guppy and Rebecca Haling and David Mitchell and Geoff Millar",

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isbn = "9781742565439",

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booktitle = "Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress",

publisher = "NSW Government, Department of Primary Industry",

note = "IGC 2013: 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities ; Conference date: 15-09-2013 Through 19-09-2013",

}

Trotter, M, Badgery, W, Barron, J, Guppy, C, Haling, R, Mitchell, D & Millar, G 2013, Spatial variability of soil phosphorus in grazing systems. in D L Michalk, G D Millar, W B Badgery & K M Broadfoot (eds), Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress. NSW Government, Department of Primary Industry, Orange, Australia, pp. 856-859, IGC 2013: 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities, Sydney, Australia, 15/09/13. <https://hdl.handle.net/1959.11/14146>

Spatial variability of soil phosphorus in grazing systems. / Trotter, Mark; Badgery, Warwick; Barron, Joshua et al.
Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress. ed. / David L Michalk; Geoffrey D Millar; Warwick B Badgery; Kim M Broadfoot. Orange, Australia: NSW Government, Department of Primary Industry, 2013. p. 856-859.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Spatial variability of soil phosphorus in grazing systems

AU - Trotter, Mark

AU - Badgery, Warwick

AU - Barron, Joshua

AU - Guppy, Christopher

AU - Haling, Rebecca

AU - Mitchell, David

AU - Millar, Geoff

PY - 2013

Y1 - 2013

N2 - Phosphorus (P) use efficiency has been identified as a key issue for Australian grazing systems. This project examined the spatial variability in soil P concentration from two separate surveys of grazed pasture fields. A field on the central tablelands of NSW had a range in Bray P of 1.2 to 140 mg/kg and a COV of 107%. The other field on the northern tablelands of NSW reported a range in Colwell P from 13.0 to 121.1 mg/kg and a COV of 59%. Maps of the spatial variability of soil P demonstrated that there is a relationship with field elevation. Application of critical P values to both fields enabled an estimation of the value of site specific fertiliser management. For one field, fertiliser inputs could potentially be isolated to 37% and the other 56% if nutrient additions were targeted at responsive areas. The opportunity for increased fertiliser use efficiency through site specific management (SSM) warrants further investigation. Research is required into both the value of SSM and the techniques that might enable the development of this strategy.

AB - Phosphorus (P) use efficiency has been identified as a key issue for Australian grazing systems. This project examined the spatial variability in soil P concentration from two separate surveys of grazed pasture fields. A field on the central tablelands of NSW had a range in Bray P of 1.2 to 140 mg/kg and a COV of 107%. The other field on the northern tablelands of NSW reported a range in Colwell P from 13.0 to 121.1 mg/kg and a COV of 59%. Maps of the spatial variability of soil P demonstrated that there is a relationship with field elevation. Application of critical P values to both fields enabled an estimation of the value of site specific fertiliser management. For one field, fertiliser inputs could potentially be isolated to 37% and the other 56% if nutrient additions were targeted at responsive areas. The opportunity for increased fertiliser use efficiency through site specific management (SSM) warrants further investigation. Research is required into both the value of SSM and the techniques that might enable the development of this strategy.

KW - Agricultural Spatial Analysis and Modelling

UR - http://www.internationalgrasslands.org/publications

M3 - Conference contribution

SN - 9781742565439

SN - 9781742565422

SP - 856

EP - 859

BT - Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress

A2 - L Michalk, David

A2 - D Millar, Geoffrey

A2 - B Badgery, Warwick

A2 - M Broadfoot, Kim

PB - NSW Government, Department of Primary Industry

CY - Orange, Australia

T2 - IGC 2013: 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities

Y2 - 15 September 2013 through 19 September 2013

ER -

Trotter M, Badgery W, Barron J, Guppy C, Haling R, Mitchell D et al. Spatial variability of soil phosphorus in grazing systems. In L Michalk D, D Millar G, B Badgery W, M Broadfoot K, editors, Revitalising Grasslands to Sustain our Communities: Proceedings of the 22nd International Grassland Congress. Orange, Australia: NSW Government, Department of Primary Industry. 2013. p. 856-859

Spatial variability of soil phosphorus in grazing systems

Abstract

Conference

UN SDGs

Keywords

Access to Document

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