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  1. A Guide to Corn Growth and Development

    https://ohioline.osu.edu/factsheet/anr-0148

    maturity). Vegetative and reproductive stages of development are determined when 50% or more of the plants ... coleoptile emerges through the soil surface (Figure 2). The root system consists of the radicle (with branch ... roots) and seminal roots. The number of calendar days between planting and emergence varies and is ...

  2. Choosing a Laboratory for Nutrient and Soil Health Testing

    https://ohioline.osu.edu/factsheet/anr-0107

    State University Extension Soil testing provides key information about soil nutrient availability. It is ... a complete picture of overall soil health. Farmers, gardeners, and landowners can use soil testing data to ... optimize their nutrient management plans. Implementing recommendations based on soil test data prevents ...

  3. Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values

    https://ohioline.osu.edu/factsheet/anr-75

    Bray P. When only soil test values in the agronomic range were considered (less than 50 ppm Bray P), ... relationships between Mehlich-3, Bray P, and Ammonium Acetate soil test extractants in the Tri-State Region. ... 3–1170 ppm, and Mehlich-3 K values ranged from 25–899 ppm. We examined relationships with all soil test ...

  4. Team Dynamics online

    https://leadershipcenter.osu.edu/events/team-dynamics-online-6

    optimal level. A team that is performing at a high level is able to capitalize on the strengths of the ... embracing common sense with uncommon levels of discipline and persistence. Ironically, teams succeed because ... their goals.   Objectives Identify the benefits of high performance teams Define the different stages of ...

  5. 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 ...

  6. 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 ...

  7. Selecting, Storing, and Serving Ohio Apples

    https://ohioline.osu.edu/factsheet/HYG-5507

    in apple production in the United States. It produces around 50 different varieties, including Ohio ... recommendations below are approximations. 1 pound = about 3 medium apples 1 pound = approximately 1½ cups ... recommends two cups of fruits per day as part of a healthy diet. A medium, raw, 3-inch apple is low in ...

  8. Guidelines for Choosing a Soil Analytical Laboratory

    https://ohioline.osu.edu/factsheet/HYG-1133

    the test results will be of high quality, credible, and meaningful. In addition, any recommendations ... here to aid the grower in evaluating a soil analytical laboratory. Factors to Consider Test Me​thods ... region. This summary, entitled  Recommended Chemical Soil Test Procedures for the North Central Region, ...

  9. Lawn Mower Clinic 2024

    https://fabe.osu.edu/events/lawn-mower-clinic-2024

    $50, we will service your  walk-behind lawn mower over the course of one weekend. Please take note of the ...

  10. 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, ... increasing interest in drone spraying and the high level of public demand for relaxation of current rules and ... data points: soil characteristics (type, moisture content, and nutrient content) location of drainage ...

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