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  1. Palmer Amaranth and Waterhemp Management: It’s All About the Seed

    https://ohioline.osu.edu/factsheet/anr-76

    only 25 percent germination following year equals 50,000 plants Even assuming 99 percent control that ... the seed last in soil? Approximately 80 percent of the seeds lose viability within the first 12 ... left on the surface, compared with burial 6 inches deep.   Bottom line:  Viable seed levels will ...

  2. Limiting Risks for Your Unborn Baby

    https://ohioline.osu.edu/factsheet/hyg-5535

    healthy. Certain substances or dietary habits could classify you as high risk. Some risk factors are ... behaviors are associated with low birth weight, which can lead to low oxygen levels at birth, the inability ... low-carbohydrate diet, the high-protein diet, the starvation diet and the liquid-protein diet. Fad diets often ...

  3. Interpreting a Soil Test Report

    https://ohioline.osu.edu/factsheet/agf-0514

    suitability to grow a chosen crop. Phosphorous and potassium soil test levels help us know if fertilizer is ... values is needed if they are not reported as ppm using a Mehlich 3 soil test. Soil test values reported ... in pounds per acre are converted to ppm by dividing pounds per acre by 2. If phosphorus soil test ...

  4. Solar Eclipse

    https://ohio4h.org/solareclipse

    this Summary of Learning Outcomes. Small Moon, Big Sun 1   Topic: Space Science Level: Cloverbud, K-2 ... eclipse? Time: 30–45 minutes   Small Moon, Big Sun 2 Topic: Space Science Level: Beginning, Intermediate ... Time: 30 minutes   Small Moon, Big Sun 3 Topic: Space Science Level: Intermediate, Advanced Activity: ...

  5. Grain Bin Hazards

    https://ohioline.osu.edu/factsheet/aex-59155

    situation. For example, if the grain is moldy, then a HEPA (High Efficiency Filter) cartridge will be needed ... maintenance to reduce risk of ignition due to machinery failure. Falling Hazards: Many walking/working ... the surface, suffocation will likely occur. In three to four seconds, grain can be above knee level ...

  6. Build a Star Circuit Necklace

    https://ohio4h.org/build-a-star-circuit-necklace

    LED bulb:     So that it is visible between two star rays (tips), or   On the back of the pendant so ... images provided by iStockphoto.com by Getty Images. ALL SOLAR ECLIPSE VIEWING RISKS BORNE BY THE VIEWER. ... Any and all risks associated by viewing the solar eclipse on any property operated by, or with glasses ...

  7. Small Moon, Big Sun 2

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

    to INTERMEDIATE level) |  PDF for PRINTING A total solar eclipse is a rare and awe-inspiring ... such as a hallway or gym. What To Do Tape the 9-inch paper plate to a wall at eye level. Stand in front ... of the plate while holding the coin in your hand at eye level. Stretch your arm straight out in front ...

  8. Ever-Evolving Aspects of Cannabis Production

    https://ohioline.osu.edu/factsheet/anr-99

    recreational status. Even though marijuana continues to be illegal at the federal level due to its high ... concentration goes beyond 0.3%. For obvious reasons, high tunnel and greenhouse operations face lower ... overall success of any cannabis production effort. Hemp programs overseen by state-level agencies also ...

  9. Ammonia Emission from Animal Feeding Operations and Its Impacts

    https://ohioline.osu.edu/factsheet/AEX-723.1

    50 ppm, increased levels of keratoconjunctivitis and tracheitis have been observed. These trachea and ... causes high ammonia levels inside animal production buildings, especially in winter months when the ... concentrations. People begin to detect odors at 5–50 ppm. Irritation to mucous surfaces occurs at 100–500 ppm ...

  10. Growing Rhubarb in the Home Garden

    https://ohioline.osu.edu/factsheet/hyg-1631

    adjust the values based on a soil test report for the site and the site’s planting area characteristics. ... feet Potash/Potassium oxide (K 2 O): 4½ pounds K2O per 1,000 square feet  If no soil test is available, ... soils, but grows best in fertile, loamy, well-drained soil that has good organic matter content. Careful ...

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