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  1. Grapevine Nutrient Management: Petiole Sampling and Analysis

    https://ohioline.osu.edu/factsheet/hyg-1438

    availability. However, there is a poor relationship between soil and plant nutrient levels. While a soil may be ... adequate levels of another nutrient while the soil test indicates a deficiency. This poor relationship may ... Manganese (Mn) 25–1,000 ppm 3 31–150 ppm Iron (Fe) 30–100 ppm 31–50 ppm Copper (Cu) 5–15 ppm 5–15 ppm Boron ...

  2. Corn Response to Long-Term Weather Stressors

    https://ohioline.osu.edu/factsheet/anr-0150

    early, it calculates the time needed for the soil to warm so crop planting can proceed with a lower risk ... these challenges through management decisions. Drought and High Temperatures An increased frequency of ... continue to increase, leading to variable soil moisture across the midwestern United States (Crimmins et ...

  3. Timber Theft in Ohio

    https://ohioline.osu.edu/factsheet/F-97

    rebounding since the recent Great Recession. Several high profile timber theft incidents have received ... answer is really quite simple. Timber has value! The monetary value of timber in Ohio can be highly ... variable, but it can be as high as a few thousand dollars per tree or tens of thousands of dollars per acre. ...

  4. Salmonella in Fresh Produce

    https://ohioline.osu.edu/factsheet/anr-62

    signal detected. Purple/blue: low intensity signal; Green/yellow: medium intensity signal; Red: high ... between 60 to 65 degrees Celsius. This technique is very sensitive, however, the level of detection varies ... Further, due to the asymptomatic nature of the interaction between Salmonella and tomato plants and fruits, ...

  5. Postdoctoral research demonstrates power of machine learning to advance ecosystem prediction

    https://fabe.osu.edu/news/postdoctoral-research-demonstrates-power-machine-learning-advance-ecosystem-prediction

    a peer-reviewed journal covering research on the relationships between meteorology and the fields of plant, ... animal, and soil sciences, ecology, and biogeochemistry.   Gaur's article, titled "Explainable ... exchange of energy between plants and the atmosphere. This process is a critical component of modern land ...

  6. Controlling Non-Native Invasive Plants in Ohio Forests: Ailanthus

    https://ohioline.osu.edu/factsheet/f-65

    shallow soils of varying pH, and is highly tolerant of poor air quality. Identification Ailanthus trees ... impacts, and a landowner's comfort level with those methods. While not always easy to control, ... to control small to medium sized ailanthus by spraying the circumference of the lower 12–18 inches of ...

  7. Using the Tree Measuring Stick

    https://ohioline.osu.edu/factsheet/F-62

    defects, use your judgment in making deductions that reduce the volume between 10 and 50 percent. ... between your eye and stick to be sure it is 25 inches (Figure 2b). The “Diameter of Log” scale on the top ... unusable. Deductions should be made for estimated loss due to these defects. Trees that are over 50 percent ...

  8. Calculating Cation Exchange Capacity, Base Saturation, and Calcium Saturation

    https://ohioline.osu.edu/factsheet/anr-81

    example of typical soil test levels in Ohio (in ppm). We can calculate the collective charge each cation ... by the soil test levels. For calcium, a soil test level of 2000 ppm, divided by 200 equals 10.0 ... (ppm) to meq/100 g soil for base and acid cations to determine CEC. Base Cation Soil test level (ppm ...

  9. Western Ohio Cropland Values and Cash Rents 2014-15

    https://ohioline.osu.edu/factsheet/aede-15-15

    is usually large tracts of land with highly productive soils. Average land will typically be the ... ) Quality: Higher quality soils translate into higher rents. Fertility Levels: Higher fertility levels often ... majority of land in a given region or county, while poor land will tend to have lower productivity soils ...

  10. Canada Thistle (Cirsum arvense)

    https://pested.osu.edu/node/397

    disturbed upland areas but also invades wet areas with fluctuating water levels such as stream bank sedge ... meadows. It can also be found in clay to gravely soils. Leaves: 3-8 inches long, alternate with spiny, ... from root pieces that snap off. The problem is….Canada thistle is a highly invasive thistle that ...

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