Introducing PLATO, the Phosphorus Loss Assessment Tool for Ontario

rill erosion on a steeply sloped field

Keeping soil covered and minimizing erosion is a key principle of soil health. Maximizing the efficiency of crop nutrient uptake and minimizing losses are the foundation of 4R Nutrient Stewardship. When combined, these principles form the basis of a new online tool from OMAFRA called PLATO (Phosphorus Loss Assessment Tool for Ontario). PLATO is a calculator that you can use to estimate the risk of phosphorus loss on your farm. It’s part of the newly re-vamped AgriSuite and uses your specific soil, crop and nutrient application information to provide a risk rating and options to improve your score. […]

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Phosphorus Loss Assessment using PLATO – AgriSuite’s newest calculator

manure being applied prior to corn planting in 2020

Introducing….to your mobile device or computer, the newest in a series of on-line calculators. The phosphorus loss assessment tool for Ontario, nicknamed PLATO, will help determine the risk of phosphorus (P) loss from nutrient applications at a field scale.PLATO takes both field characteristics, such as erosion risk and soil test level, as well as P […]

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Balancing Phosphorus in a Crop Rotation

A recent news article (Ontario Watershed study shows over application of phosphorus) phosphorus is being over applied by Ontario farmers.  The research quoted in the article gives no indication of soil fertility levels, and gives little information on soybeans in the rotation, all of which are essential to nutrient balancing.  If growers apply 50 lbs […]

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Investigating Yield and Economic Performance of a “Build and Maintain” Fertility Approach versus a “Sufficiency” Approach in Corn: Interim Report

Current P and K recommendations in Ontario guide crop producers to apply a rate of fertilizer that will provide the greatest potential of an economic response during the year of application. Increases in crop yields over time have resulted in higher nutrient removal rates which have decreased the “equilibrium” soil test values where average crop […]

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