SprayWise Decisions

Plan and match the timing of chemical applications to your local weather conditions.

Read about our selection process for including tools on Climate Kelpie

 

Who this tool is for

APSIM is not designed for use by farmers but it underpins other decision-making tools for farmers, extension officers, government agencies and agribusiness analysts, such as:
•YieldProphet® [link to page of same name]
•Whopper Cropper [link to page of same name]
•HowOften? [link to page of same name]
•HowWet? [link to page of same name]

Rural landholders and contractors who want to better plan and match the timing of chemical applications to their prevailing local weather conditions.

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Questions this tool answers

  • What is the weather forecast (rainfall, temperature, wind direction, wind speed and relative humidity) for my farm for the next 14 days?
  • What is my Delta T value (an indicator for acceptable spraying conditions)?
  • What are the appropriate Delta T conditions for spraying?

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What this tool does

SprayWise Decisions is an online service that helps you better plan and match the timing of chemical applications to your local weather conditions.

The Spraywise Decisions service:

  • streams live images from radar stations operated by the Bureau of Meteorology, national synoptic charts and cloud maps every 6 hours for the last 3 to 4 days
  • predicts weather on your farm up to 14 days ahead and records the last 14 days of weather
  • provides 3-hourly forward estimates of rainfall, temperature, wind direction, wind speed and relative humidity for the next 7 days
  • presents weather parameters as graphs, tables, maps and animations
  • combines weather parameters to derive Delta T values as a guide to the suitability of prevailing conditions for spraying
  • provides 5-day sunrise and sunset times as a guide to determine spraying activities.

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Inputs

Search for or enter your farm address. You can add up to 20 locations within Australia.

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Outputs

Spraywise Decisions provides you with number of results.

They include a:

  • virtual weather station, which generates forecasts for each paddock
  • radar page with local and national rainfall radar, national cloud and national synoptic maps
  • user-friendly Spray Planner to give you condition suitability assessments each hour for the next 5 days
  • selection of weather parameters in chart, table, daily map and animated form for the last and next 14 days.

You can also compare climate parameters for this season to historic observations back to 1995. You can compare rainfall, growing degree days, minimum temperature and maximum temperature.

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Reliability

Comparisons of predicted versus actual weather conditions confirms that temperatures, relative humidity, rainfall and Delta T are reliable for operational spray-related decisions out to 7 days.

SprayWise Decisions employs industry-standard forecasting models used by leading global weather agencies to generate parameter-specific predictions.

The system compares predicted versus recorded values on an ongoing basis at the nearest of 270 Bureau of Meteorology weather stations.

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History

SprayWise Decisions was developed by GrainGrowers, an independent, member-based organisation.

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Support available

Help brochures are available for download.
Further support is available from SprayWise Decisions.
Email: errors@spraywisedecisions.com.au

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Where to get it

You can register to access a free 7-day trial or pay for an annual subscription.

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Cost

7-day free trial; then an annual fee applies based on how many locations you want weather predictions for:

  • up to 4 locations      $132.00 inc. GST
  • up to 20 locations    $275.00 inc. GST.

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