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  1. Soils and Soil Health

    https://ohioline.osu.edu/factsheet/anr-0136

    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 ...

  2. Developing Phosphorus and Potassium Recommendations for Field Crops

    https://ohioline.osu.edu/factsheet/agf-0515

    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 ...

  3. Understanding How Soil Test Phosphorus Impacts Water Quality

    https://ohioline.osu.edu/factsheet/anr-0111

    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) ...

  4. Bumble Bee Pollination in Tomato Greenhouses

    https://ohioline.osu.edu/factsheet/ent-0092

    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 ...

  5. Nutrient Management of Forage Crops Intended for Hay

    https://ohioline.osu.edu/factsheet/anr-0109

    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 ...

  6. Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field

    https://ohioline.osu.edu/factsheet/agf-509

    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 ...

  7. Native Shrubs: Creating Living Landscapes for Birds, Butterflies, Bees, and Other Beneficials

    https://ohioline.osu.edu/factsheet/hyg-5813

    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 ...

  8. Drones for Spraying Pesticides—Opportunities and Challenges

    https://ohioline.osu.edu/factsheet/fabe-540

    likely to cause a significant level of soil compaction resulting in reduced crop yield. Spot spraying, ... spraying and the high level of public demand for relaxation of current rules and regulations. Universities, ... a number of important data points: soil characteristics (type, moisture content, and nutrient content) ...

  9. Native Trees: Creating Living Landscapes for Birds, Butterflies, Bees, and Other Beneficials

    https://ohioline.osu.edu/factsheet/hyg-5815

    are native to the region and generally suitable to grow throughout Ohio, keep in mind that soil and ... moist soil conditions to thrive in a sunny, dry space is a recipe for failure, even though the plant ... soils. Birch fruits are cone-like catkins composed of tiny seeds. River birch fruits mature in late ...

  10. Assessing Farm Financial Health Using Your Balance Sheet

    https://ohioline.osu.edu/factsheet/anr-0135

    risk a farm can bear measuring farm financial health (growth, liquidity, solvency, and ratios) gauging ...

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