Roy Latta

Affiliations

(1) Dodgshun Medlin (2) DPI Vic (1) ex (SARDI (2) LRCP (1) Mallee Focus (1) Mallee Research Station (2) SARDI (38)
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28 trial projects found Matching active filters and within map area

5 results have export data available 3 trials are CC BY 4.0
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Aims:

To examine the effect of gypsum on soil pH and soil C and whether changes in soil pH could alter productivity of the following cereal crops.

Crop type: Wheat 1 trial Fertiliser Rate Soil amelioration Type
Minnipa Agricultural Centre, SA Calcareous red sandy loam
Research organisatons
Funding source

Aims:

A long-term study was established at the Minnipa Agricultural Centre from 2008 to 2014 (EPFS Summaries 2008 to 2013) to assess the impact of grazing on crop and pasture production and soil health and also to evaluate this from a systems perspective.

The seven year demonstration with a wheat, wheat, pasture (volunteer and sown annual me… read more

Crop type: Wheat 1 trial Fertiliser Rate Grazing Regime Sowing Rate
Minnipa Agricultural Centre, SA Red sandy loam
Research organisatons
Funding source

Aims:

Agricultural soils are the main source of emission of the greenhouse gas (GHG) nitrous oxide (N2O) to the atmosphere. N2O is a potent GHG which lasts in the atmosphere for 114 years and has a global warming potential of approximately 300 times greater than that of carbon dioxide over a 100 year timescale. Agriculture accounts for 16% of Australi… read more

Crop type: Wheat 1 trial Crop Type Fertiliser Rate
Wanilla, SA Duplex sand over loam
Research organisatons
Funding source

Aims:

To measure and quantify N2O emissions from wheat grown in rotation with canola, pulses and legume pastures at two sites in low and medium/high rainfall farming systems of the Eyre Peninsula, while assessing best management practices that local farmers can adopt to reduce the risk of N2O losses and ultimately improve the paddock’s crop producti… read more

Crop type: Wheat 2 trials Crop Type Fertiliser Rate Fertiliser Timing
Minnipa Agricultural Centre, SA Wanilla, SA Calcareous red sandy loam
Research organisatons
Funding source

Aims:

To test whether soil fertility and health could be improved under a higher input system (e.g. higher fertiliser and seeding rates, establishment of improved pasture) compared to a lower input and more traditional system (district practice seed and fertiliser inputs, volunteer pasture).

The six year (2008-2013) rotation of: wheat, wheat… read more

Crop type: Wheat 1 trial Fertiliser Rate Grazing Regime Sowing Rate
Minnipa Agricultural Centre, SA Red sandy loam
Research organisatons
Funding source

Aims:

To recommend options to improve;
• soil nutrients and groundcover, and 
• reduce disease levels and chemical use.

Crop type: Canola,Oats,Wheat,Medic,Field peas,Vetch 6 trials Crop Type Crop Rotation
Minnipa Agricultural Centre, SA Red sandy loam
Source Data Unavailable
Research organisaton
Funding sources

Aims:

To investiage management of risk through tailoring inputs to the different production zones potential
by using variable rate technology.

Crop type: Wheat 1 trial Fertiliser Rate Sowing Rate
Mudamuckla, SA
Source Data Unavailable
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Funding source

Aims:

To evaluate variable rate technology using low, standard and high seed and fertiliser inputs on 3 soils zoned as of poor, medium and good production potential from a pre-2008 yield monitor, EM38 and elevation maps.

Crop type: Wheat 1 trial No treatment Precision agriculture
Minnipa, SA Red sandy loam
Source Data Unavailable
Research organisaton
Funding source

Aims:

  • To test whether soil fertility and health could be improved under a higher input system compared to a lower input and more traditional system.

Crop type: Wheat 1 trial Crop Type Crop Rotation Grazing Regime
Minnipa, SA Red sandy loam
Source Data Unavailable
Research organisaton
Funding source

Aims:

To test whether soil fertility and health could be improved under a higher input system compared with a lower input and more traditional system.

Crop type: Wheat,Medic 2 trials Crop Rotation Grazing Regime
Minnipa, VIC
Source Data Unavailable
Research organisaton
Funding sources

Aims:

To assess the performance of annual medics in a pasture – wheat rotation over the 2009 and 2010 seasons.

Crop type: Medic,Wheat 2 trials Crop Type
Minnipa, SA
Source Data Unavailable
Research organisaton

Aims:

To provide data to assist in decision making when planning to use a field crop as a potential resource for grazing, hay and/or grain based on seasonal conditions, while in some cases utilising the benefits of a break crop within the cropping rotation.

Minnipa, SA Red sandy loam
Source Data Unavailable
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Funding source

Aims:

To assess the P response from current and residual fertiliser applications.

Crop type: Wheat 1 trial Fertiliser Rate
Minnipa, SA Red sandy loam
Source Data Unavailable
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Funding source

Aims:

The Farming Systems Competition was commenced in 2000 to compare the impact of four different management strategies on production, profitability and sustainability at the Minnipa Agricultural Centre.

Crop type: Wheat,Canola,Kaspa peas,Barley 4 trials Crop Type Crop Rotation
Minnipa, SA
Source Data Unavailable
Research organisaton

Aims:

To manage risk through tailoring inputs to the different production zones potential by using variable rate technology.

Crop type: Wheat 1 trial Fertiliser Rate
Mudamuckla, SA Grey calcareous sandy loam
Source Data Unavailable
Research organisaton
Funding source

Aims:

At Wharminda the focus is on managing risk through variable rate technology (VRT) using different inputs over variable soil
types.

Crop type: Wheat 1 trial Fertiliser Rate
Wharminda, SA Deep non-wetting sand
Source Data Unavailable
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Funding source

Aims:

To further evaluate variable rate sowing as a tool to improve profitability in low rainfall upper EP farming systems, this broad acre trial
began in 2008 and has continued through to 2010.

Crop type: Wheat 1 trial Fertiliser Rate
Minnipa, SA Red sandy loam
Source Data Unavailable
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Aims:

To investigate wheat varieties suitable to adapt to seasonal variability. 

Crop type: Wheat 1 trial Variety Variety Type
Minnipa Agricultural Centre, SA
Source Data Unavailable
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Funding sources

Aims:

To compare current varieties to ones which are not commonly grown in the district, and to compare varieties in soil types and rainfall regions where National Wheat Variety trials are not conducted.

Crop type: Wheat 3 trials Variety Variety Type
Elliston, SA Franklin Harbour, SA Mt Cooper, SA
Source Data Unavailable
Research organisaton

Aims:

To measure comparative wheat yields in response to varying P applications on 2 soil types.

Crop type: Wheat 1 trial Fertiliser Fertiliser Rate
Minnipa, SA
Source Data Unavailable
Research organisaton
Funding source

Aims:

To test whether knowledge of soil potential, soil variation and in-season predictions of grain yield with Yield Prophet could be useful to improving management.

Crop type: Wheat 1 trial No treatment Precision agriculture
Mudamuckla, SA
Source Data Unavailable
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Funding source

Aims:

To assess the P response from current fertiliser applications at MAC.

Crop type: Wheat 1 trial Fertiliser
Minnipa, SA Red sandy loam
Source Data Unavailable
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Funding source

Aims:

To manage risk through variable rate technology using different inputs over variable soil types and testing the use of Yield Prophet to match plant available water and nutrition with modelling of climatic conditions, knowing that we can have unpredictable finishes to seasons.

Crop type: Wheat 1 trial Fertiliser Rate Sowing Rate
Mudamuckla, SA
Source Data Unavailable
Research organisaton
Funding source

Aims:

To manage risk through variable rate technology using different inputs over variable soil types and testing the use of Yield Prophet to match plant available water and nutrition with modelling of climatic conditions, knowing that we can have unpredictable finishes to seasons.

Crop type: Wheat 1 trial Fertiliser Rate Sowing Rate
Wharminda, SA
Source Data Unavailable
Research organisaton
Funding source

Aims:

To manage risk through variable rate technology using different inputs over variable soil types and testing the use of Yield Prophet to match plant available water and nutrition with modelling of climatic conditions, knowing that we can have unpredictable finishes to seasons.

Crop type: Wheat 1 trial Fertiliser Rate Sowing Rate
Minnipa, SA
Source Data Unavailable
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Funding source

Aims:

To see how the commonly grown varieties with a range of maturities respond to seasonal conditions, soil type and sowing time, i.e. to evaluate how they can best fit into the farming system.

Crop type: Wheat 1 trial Variety Variety Type
Minnipa, SA
Source Data Unavailable
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Funding source

Aims:

To test whether general soil health and fertility can be increased under a higher carbon input system with well managed grazing.

Crop type: Wheat 1 trial Crop Rotation Fertiliser Rate Grazing
Minnipa, SA Red sandy loam
Source Data Unavailable
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Funding source

Aims:

To provide data to assist in decision making of using a cereal for grazing, hay and/or grain based on seasonal conditions, while knowing the relative multipurpose performance of the cereal options.

Crop type: Wheat 1 trial Grazing
Minnipa, SA
Source Data Unavailable
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Funding source