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  1. Phosphorus (P) Nutrient Use in Ohio

    https://ohioline.osu.edu/factsheet/anr-0143

    -phosphorus-from-animal-manure-pss-2249.pdf Ag Crops and Livestock phosphorus soil fertility nutrient management water quality Agriculture ... a foundational area of study in soil fertility research. The basis of university fertilizer recommendations is ... fertilizer is added to the soil. The change in P nutrient use which occurred around 1995 coincided with ...

  2. Herbicide Injury and the Problem of Spray Drift

    https://ohioline.osu.edu/factsheet/anr-0137

    but it has a high degree of uptake from the soil and is very persistent. Grape injury has been ... vineyard. Injury, however, may occur if the spray rate is too high when these herbicides are applied to soil ... registered for use in the vineyard but also used extensively in row-crop agriculture or vegetation management ...

  3. BuckeyeNext

    https://ohio4h.org/workforce-development/buckeyenext-0

    experience. Our hope is that your 4-H experience has allowed you to master a set of skills, a talent, or ... research-based career readiness competencies, Ohio 4-H Pathways to the Future created a program to introduce Ohio ...

  4. Small Moon, Big Sun 1

    https://ohio4h.org/small-moon-big-sun-beginning

    and Earth and the moon. When we look at an everyday item and hold it closer to our eyes, it will ... appear bigger compared to the same item held farther away from our eyes. The same phenomenon occurs when ... the sun. Start the discussion by asking these questions: What are the names of things found in our ...

  5. Manure and Compost: Nitrogen Availability in Organic Production

    https://ohioline.osu.edu/factsheet/anr-34

    researchgate.net/publication/346060031_Estimating_Plant-available_Nitrogen_from_Manur e. Ag Crops and Livestock organic manure compost nitrogen soil nutrient management plan ... is a challenging obstacle for producers. A nutrient management plan needs to consider the following ... prevent excessive soil nutrient levels. Volatilization Losses Immediate incorporation or injection of ...

  6. Sustainability Internship Program

    https://aede.osu.edu/news/sustainability-internship-program

    management practices, and installing recycling and compost bins in buildings throughout the Columbus campus, ...

  7. Lawn Mowing

    https://ohioline.osu.edu/factsheet/hyg-5816

    University Mowing, the controlled defoliation of turfgrass, is a cornerstone practice in lawn management ... subsequent interventions. Proper mowing practices are pivotal, regardless of fertilization, irrigation, or ... limited soil moisture can lead to signs of stress and increased risk of turfgrass loss in closely mowed ...

  8. Camera Obscura (Pinhole Camera)

    https://ohio4h.org/camera-obscura

    Using Your Camera Obscura NOTE: Our eyes need time to get used to the darkness of the camera obscura. ... a screen, such as the tracing paper. To understand how camera obscuras work, think about how our eyes work ... Because our simple cardboard tube device does not have the same ability to focus light that our eyes do, ...

  9. Ohio Phosphorus (P) Use by Crop Reporting District

    https://ohioline.osu.edu/factsheet/anr-0144

    epa.ohio.gov/static/Portals/35/documents/Nutrient-Mass-Balance-Study-2020.pdf Ag Crops and Livestock phosphorus soil fertility nutrient management water quality Agriculture and ... Nutrient Use in Ohio section “Determining P 2 O 5 Available from Fertilizer and Manure” were used to ... Nutrient Availability: Fertilizer Annual fertilizer P 2 O 5 use has declined statewide by 69,000 tons or ...

  10. Shiitake Mushroom Production: Logs and Laying Yards

    https://ohioline.osu.edu/factsheet/f-0041

    and the choice of log stacking method can greatly reduce the need for management activities such as ... humidity might be more favorable and require less active management. A laying yard located behind the north ... ground. This difference is more pronounced on some sites than others. Wet or heavy soil and low vegetation ...

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