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Perennial sowthistle (Sanchus arvensis)
https://pested.osu.edu/node/418
neutral, fine textured, rich soils. Leaves: Alternate, blue-green with prickly-toothed margins. Deeply ...
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Apple of Peru (Nicandra phyhsalodes)
https://pested.osu.edu/node/396
producer. Large, persistent seed-banks quickly accumulate in the soil due to seed dormancy. Very competitive ...
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Johnsongrass (Sorgum halepense)
https://pested.osu.edu/node/402
soil surface. They are stout with purple spots and scales at the nodes. The problem is….Johnsongrass ...
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Shatter cane (Sorghum bicolor)
https://pested.osu.edu/node/412
base. It is believed that natural crossing between diverse sorghum types produced the present day ...
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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 ...
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Musk thistle (Carduus nutans)
https://pested.osu.edu/node/407
soils. It invades open natural areas, meadows, grassy bald, disturbed areas, old pastures, roadsides, ...
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Kochia (Bassia scoparia)
https://pested.osu.edu/node/403
can accumulate high nitrate concentrations under certain conditions. Caution should be exercised when ...
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Environment, Economy, Development and Sustainability (EEDS)
https://aede.osu.edu/node/7415
Development or International Development. Since EEDS is a joint major between our department and the School ... to complement their work in their major program of study. EEDS is a joint program between our ...
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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 ...
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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 Methods ... region. This summary, entitled Recommended Chemical Soil Test Procedures for the North Central Region, ...