Soils and Soil Health
nutrients air—2%–50% of soil volume oxygen, carbon dioxide, nitrogen occupies same spaces between soil ... bad, or mid-level soil test results to compare against. The Ohio State University has conducted a vast ... nutrients—aka “potential for productivity” water—2%–50% of soil volume water-holding capacity is directly ...
Developing Phosphorus and Potassium Recommendations for Field Crops
determined using field studies to correlate soil test levels to crop yield response. Ohio data was used to ... This framework strives to build soil test levels up to and beyond a critical level, and then maintain ... these levels over time. The critical level is a key component to this framework. Soil test levels above ...
Understanding How Soil Test Phosphorus Impacts Water Quality
Soil test P is one indicator of environmental P loss potential from a field. STP values above 100 ppm ... Tests as Risk Indicators for Leaching of Dissolved Phosphorus from Agricultural Soils in Ontario. Soil ... called eutrophication, results in depleted dissolved oxygen in water bodies. A soil test for P (STP) ...
Bumble Bee Pollination in Tomato Greenhouses
Tomatoes growing directly in the soil under high-tunnel protection with the side panels rolled up to allow ... tomato growers are choosing the option of cultivating plants in either a greenhouse or high-tunnel (hoop ... (Heuvelink, 2018). Both high-tunnel and greenhouse tomato growers use bumble bees for their pollination ...
Nutrient Management of Forage Crops Intended for Hay
is to maintain soil test P and K between the “critical level” (minimum) and “maintenance limit” ... level before planting. The estimated amount of P 2 O 5 required to raise a soil test 1 PPM is 20 pounds ... For example, if a soil test is 100 PPM and the goal is to increase the soil test to a critical level ...
Garden Pests with The Ohio State University Extension Office
gardens from pests, and which wildlife we might want around. Can you tell the difference between a bad bug ...
Revised Phosphorus Index Can Help Curb Agricultural Runoff
Lake Erie. All with the help of an online program. The revised Ohio Phosphorus Risk Index is a program ... farm-specific data to generate their risk of phosphorus in agricultural runoff. The revised index is the result ... The revised phosphorus risk index can help Ohio farmers better work toward meeting the 40 percent ...
Better Process Control School
must be received by July 25 to receive a partial refund. There is a $50 cancellation fee ($150 ... high-speed internet connection Processor: 2 GHz Free Disk Space: 250 MB Free RAM: 2 Gb Resolution: 1024x768 ...
Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field
site and rate criteria from Assessing Nutrient Loss Risk in Ohio (NRCS) between 50 to 200 PPM. Time ... step 7. STP value of 50 PPM Mehlich III or less: CROP YIELD —Reduce risk of crop yield losses with ... available. The maintenance STP range is "critical level" to 40 PPM in corn soybean rotation and 50 ...
Native Shrubs: Creating Living Landscapes for Birds, Butterflies, Bees, and Other Beneficials
moist, acidic, well-drained soil that is high in organic matter. Spring flowers attract bees, ... with acidic, well-drained soils high in organic. For specific highbush blueberry growing requirements ... generally suitable to grow throughout Ohio, keep in mind that soil and moisture conditions vary across the ...