Nitrogen inputs from pasture legumes in a cropping rotation

1997 - 2001
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Libby Roesner (NSW Agriculture)
Year(s) 1997 - 2001
Contributor Central West Farming Systems
Trial location(s) Condobolin, NSW
Nitrogen inputs from pasture legumes in a cropping rotation locations
Aims

To report on nitrogen inputs from pasture legumes in a cropping rotation.

Key messages
  • Legume pasture species and management practices have been investigated to determine the most important factors for improving nitrogen inputs to the soil.
  • Results have shown significant improvements in the soil available nitrogen after growing pastures with a high proportion (>75%) of legumes.
  • The increased soil nitrogen from good stands of pasture legumes is also reflected in the yield and quality of wheat grown the following year.
  • A short pasture (2-3 seasons) will provide a significant increase in soil nitrogen and a yield and/or protein response. A long pasture (5 seasons) may not provide more nitrogen than one of 4 seasons.
  • No legume species has performed consistently better than any other species.
  • Sowing a mixture of inoculated pasture legume species that are suited to the region is important to spread the risk and ensure a good stand of legumes is achieved.
  • Weed control using grazing management and/or chemical control is seen as the best way to maintain a high level of legumes in the paddock and therefore increase soil nitrogen
Lead research organisation Central West Farming Systems
Host research organisation N/A
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop types Cereal (Grain): Wheat Pasture: Clover Hay: Lucerne Pasture: Medic Weed: Ryegrass
Treatment type(s)
  • Crop: Rotation
Trial type
Trial design

Condobolin 1997 Wheat

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Condobolin 1997 Clover

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Condobolin 1997 Lucerne

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Condobolin 1997 Medic

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Condobolin 1997 Ryegrass

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Condobolin 1998 Wheat

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Condobolin 1998 Clover

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Condobolin 1998 Lucerne

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Condobolin 1998 Medic

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Condobolin 1998 Ryegrass

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Condobolin 1999 Wheat

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Condobolin 1999 Clover

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Condobolin 1999 Lucerne

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Condobolin 1999 Medic

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Condobolin 1999 Ryegrass

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Condobolin 2000 Wheat

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Condobolin 2000 Clover

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Condobolin 2000 Lucerne

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Condobolin 2000 Medic

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Condobolin 2000 Ryegrass

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Condobolin 2001 Wheat

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Condobolin 2001 Clover

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Condobolin 2001 Lucerne

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Condobolin 2001 Medic

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Condobolin 2001 Ryegrass

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Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Condobolin, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Condobolin, NSW Kandosol
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Condobolin NSW

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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial report and links

1997 trial report



Trial last modified: 26-11-2019 14:38pm AEST