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Ohio Department of Agriculture | Plant Health

Ohio Applicator Forecast

The Ohio Applicator Forecast is designed to help nutrient applicators identify times when the weather-risk for applying is low. The risk forecast is created by the National Weather Service and takes snow accumulation and melt, soil moisture content, and forecast precipitation and temperatures into account. The chances of surface runoff in the next 24 hours are displayed on the overview map of the state. If you zoom to street level, seven days of weather conditions and runoff chances are predicted.

Risk is grouped into 3 categories: Low, Medium, and High. When the risk is Medium, it is recommended that the applicator evaluate the situation to determine if there are other locations or later dates when the application could take place.

Click the Forecast Map on the menu above to see the forecast in your area, or the About page for more information about the forecast system.

590 Application Map

This map has been developed utilizing the nutrient application standards from the 2012 Ohio NRCS 590 Nutrient Management Practice Standard. These optional standards were developed to:

  • Budget, supply, and conserve nutrients for plant production.
  • Minimize agricultural nonpoint source pollution of surface and groundwater resources.
  • Properly utilize commercial fertilizer, manure and/or organic by-products as a plant nutrient resource or soil amendment.
  • Protect air quality by reducing odors, nitrogen emissions (ammonia, oxides of nitrogen) and the formation of atmospheric particulates.
  • Maintain or improve the physical, chemical, and biological condition of soil.

The 590 Application Map displays several information categories to help users adopt the 590 guidelines. Information provided on this map includes soil drainage and flooding frequency classes, water table depth, N leaching potential and runoff vulnerability.

Nutrient Regulations

There are a variety of laws, regulations, and guidelines for the management of fertilizers and manures in Ohio. The Nutrient Regulation page summarizes these rules and the areas of Ohio where they apply; for example in 2011 special rules were enacted for watersheds in distress, and again in 2014 for land in the Western Lake Erie Basin.