Exploring the potential for site specific nitrogen management in grazing systems

Samantha Anderson; Mark Trotter; Rebecca Haling; Clare Edwards; Christopher Guppy; David Lamb

Abstract

The application of site-specific nutrient management (SSNM) in grazing systems may offer considerable benefits in terms of optimised nutrient use efficiency and pasture productivity. There is significant variability in soil nutrients and plant growth potential across pasture paddocks, suggesting that SSNM may prove viable (Virgona and Hackney, 2008). Research has led to increasing uptake of SSNM in cropping systems. Despite this, there has been little research into the value of SSNM strategies within more complex grazing systems and even less is know about how producers might implement these techniques. This experiment examines the value of SSNM of nitrogen (N) in a pasture using soil EM38 mapping to guide paddock zoning for variable rate fertiliser application. Soil EM38 is strongly linked to soil moisture characteristics and this study explores how variability in soil water may influence nutrient use efficiency at the sub paddock scale.

Original language	English
Pages	25-25
Publication status	Published - 2012
Event	SELM 2012: 3rd Australian and New Zealand Spatially Enabled Livestock Management Symposium - Lincoln, New Zealand Duration: 6 Jul 2012 → …

Conference

Conference	SELM 2012: 3rd Australian and New Zealand Spatially Enabled Livestock Management Symposium
City	Lincoln, New Zealand
Period	6/07/12 → …

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/1959.11/10498

Handle.net

Persistent link

Cite this

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title = "Exploring the potential for site specific nitrogen management in grazing systems",

abstract = "The application of site-specific nutrient management (SSNM) in grazing systems may offer considerable benefits in terms of optimised nutrient use efficiency and pasture productivity. There is significant variability in soil nutrients and plant growth potential across pasture paddocks, suggesting that SSNM may prove viable (Virgona and Hackney, 2008). Research has led to increasing uptake of SSNM in cropping systems. Despite this, there has been little research into the value of SSNM strategies within more complex grazing systems and even less is know about how producers might implement these techniques. This experiment examines the value of SSNM of nitrogen (N) in a pasture using soil EM38 mapping to guide paddock zoning for variable rate fertiliser application. Soil EM38 is strongly linked to soil moisture characteristics and this study explores how variability in soil water may influence nutrient use efficiency at the sub paddock scale.",

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author = "Samantha Anderson and Mark Trotter and Rebecca Haling and Clare Edwards and Christopher Guppy and David Lamb",

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T1 - Exploring the potential for site specific nitrogen management in grazing systems

AU - Anderson, Samantha

AU - Trotter, Mark

AU - Haling, Rebecca

AU - Edwards, Clare

AU - Guppy, Christopher

AU - Lamb, David

PY - 2012

Y1 - 2012

N2 - The application of site-specific nutrient management (SSNM) in grazing systems may offer considerable benefits in terms of optimised nutrient use efficiency and pasture productivity. There is significant variability in soil nutrients and plant growth potential across pasture paddocks, suggesting that SSNM may prove viable (Virgona and Hackney, 2008). Research has led to increasing uptake of SSNM in cropping systems. Despite this, there has been little research into the value of SSNM strategies within more complex grazing systems and even less is know about how producers might implement these techniques. This experiment examines the value of SSNM of nitrogen (N) in a pasture using soil EM38 mapping to guide paddock zoning for variable rate fertiliser application. Soil EM38 is strongly linked to soil moisture characteristics and this study explores how variability in soil water may influence nutrient use efficiency at the sub paddock scale.

AB - The application of site-specific nutrient management (SSNM) in grazing systems may offer considerable benefits in terms of optimised nutrient use efficiency and pasture productivity. There is significant variability in soil nutrients and plant growth potential across pasture paddocks, suggesting that SSNM may prove viable (Virgona and Hackney, 2008). Research has led to increasing uptake of SSNM in cropping systems. Despite this, there has been little research into the value of SSNM strategies within more complex grazing systems and even less is know about how producers might implement these techniques. This experiment examines the value of SSNM of nitrogen (N) in a pasture using soil EM38 mapping to guide paddock zoning for variable rate fertiliser application. Soil EM38 is strongly linked to soil moisture characteristics and this study explores how variability in soil water may influence nutrient use efficiency at the sub paddock scale.

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M3 - Abstract

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T2 - SELM 2012: 3rd Australian and New Zealand Spatially Enabled Livestock Management Symposium

Y2 - 6 July 2012

ER -