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Soil Terminology and Definitions
https://ohioline.osu.edu/factsheet/SAG-19
of soil antecedent biological activity. A high BR generally indicates higher soil microbial activity, ... accumulation in the soil. This index can be used as an early and sensitive indicator of carbon or soil organic ... and macropores leading to soil compaction and decreased soil organic matter levels. Soil compaction ...
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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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Developing Phosphorus and Potassium Recommendations for Field Crops
https://ohioline.osu.edu/factsheet/AGF-515
+ (0.05 x CEC))] + (YP x CR) + 20 CL is the critical level (100 ppm at a CEC of 10), STL is the soil test ... test results are based on soil calibration studies that correlate soil test levels to crop yield ... crop (buildup stage). Once soil test values reach the critical soil test level, a maintenance approach ...
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Silent Spring Revolution: John F. Kennedy, Rachel Carson, Lyndon Johnson, Richard Nixon, and the Great Environmental Awakening
(Pennsylvania) smog incident, JFK’s Limited Nuclear Test Ban Treaty, Great Lakes preservation, the Santa Barbara ...
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Erik Ohlson
https://plantpath.osu.edu/our-people/erik-ohlson
streams and base-level controls from historic dams in the unglaciated mid-Atlantic region, USA. Philos ... E.W. 2022. High Plains wheat mosaic virus: An emerging trade issue for corn seed. ASTA’s CSS and Seed ... Kenya. Ohlson, E.W. 2017. QTL mapping using high density SNP markers in cowpea. West African Cowpea ...
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Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage
https://ohioline.osu.edu/factsheet/AC-52
screening steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5 ppm) or within ... (DON), also called vomitoxin. As a result, high levels of Gibberella ear rot severity and moldy grain are ... usually accompanied by high levels of vomitoxin. Mycotoxins are harmful to both humans and animals. ...
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Forester (Land Mgmt)- 20051227
a balance between wise use and protection of our natural resources for the benefit of all.” Our agency ... production, minerals, wildlife habitat, recreation, watershed protection, soils, aesthetics & other ... to higher-level management staff; reviews & implements approaches & techniques for potential ...
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Warming Up For Spring Planting?
https://wayne.osu.edu/news/warming-spring-planting
temperature of the soil for indoor containers can be 5 degrees lower than the actual inside temperature? ... the soil warm which helps the roots of the plants grow strong and healthy. Providing heat from the ... cause root rot or crown rot in mature plants. You need to keep the soil moist to help with germination, ...
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Ohio Data that Shaped the Tri-State Fertilizer Recommendations
https://ohioline.osu.edu/factsheet/agf-518
that very low soil test levels require high fertilizer rates, but as soil test levels increase, our ... able to answer the question, “At what soil test level should I apply fertilizer to see a yield ... response?” To answer this question, we need to establish a critical soil test level. For each trial, we ...
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2023 CFAES Diversity, Equity, and Inclusion Speaker Series
https://cfaesdei.osu.edu/workshopsprograms/2023-dei-speaker-series
national-level responses to our food supply revealed a lot of weaknesses, the hyper-local response to feeding our ... creation. This talk will chronicle the loss of Black farmland from 1920-1997 and draw links between that ...