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Date of Planting
https://agcrops.osu.edu/node/4418
soil conditions are not excessively wet. An early morning soil temperature of 50 degrees Fahrenheit at ... very slowly at soil temperatures below 50 degrees Fahrenheit. Short-term weather forecasts should be ... Ohio, April 10 to May 10. Approximately 100 to 150 GDDs (heat units) are required for corn to emerge. In ...
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Developing Phosphorus and Potassium Recommendations for Field Crops
https://ohioline.osu.edu/factsheet/agf-0515
determined using field studies to correlate soil test levels to crop yield response. Ohio data was used to ... This framework strives to build soil test levels up to and beyond a critical level, and then maintain ... these levels over time. The critical level is a key component to this framework. Soil test levels above ...
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Where Could the U.S.-Mexico GM Corn Dispute End Up?
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-06/where-could-us-mexico-gm-corn-dispute-end
the original decree ratcheted up trade tensions between the two countries. Following US pressure, ... “…approval procedure that requires a risk assessment…” (Article 9.6.4 (a)). Therefore, the United States and ... constituted, would be expected to present its initial report within 150 days (Article 31.17.1). After ...
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Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field
https://ohioline.osu.edu/factsheet/agf-509
site and rate criteria from Assessing Nutrient Loss Risk in Ohio (NRCS) between 50 to 200 PPM. Time ... step 7. STP value of 50 PPM Mehlich III or less: CROP YIELD —Reduce risk of crop yield losses with ... available. The maintenance STP range is "critical level" to 40 PPM in corn soybean rotation and 50 ...
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How Climate Affects Corn Production
https://agcrops.osu.edu/node/4407
low humidity, evaporation demand on a crop is high and a high amount of available soil moisture must ... being around 32 degrees Fahrenheit and high-end ones being around 112 degrees Fahrenheit. Growth ... temperatures for growth vary between day and night, as well as over the entire growing season. For example, ...
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Corn Growth and Development
https://agcrops.osu.edu/node/4409
150 1320 Silk elongation is most progressed on uppermost ear. V19 19-leaf collar 50 1370 Tassel ... Development: A key step in high yield corn production is monitoring fields and troubleshooting yield-limiting ... Method Start with first oval-shaped leaf as V1. Field defined as being at a given stage when at least 50 ...
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Phosphorus Best Management Practices Field Day
high. Best Management Practice (BMP) Field Day is an event to address these problems and offer solutions ... extension specialists and research scientists with expertise in Phosphorus and how it relates to soil ...
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Ask the Expert – Managing Frogeye Leaf Spot with Dr. Carl Bradley
a high-level of resistance to frogeye leaf spot, rotating to non-host crops (such as corn), and applying an ... have been observed in the U.S. These strains are highly-resistant to QoI fungicides (sometimes called ...
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Drones for Spraying Pesticides
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-05/drones-spraying-pesticides
harvest. With the help of fast and accurate GPS or GNNS technology, a high-resolution camera, and variable ... square inch of crop or soil. Using drones for spraying pesticides is becoming attractive mainly for four ... reasons: 1) The topography or soil conditions do not allow the use of traditional ground sprayers or ...
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Battle for the Belt: Episode 2
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-06/battle-belt-episode-2
states, including Ohio (Figure 1). For Ohio, between April 17 to May 15, there has been an average ... reduction of 0.12 suitable field days per year between 1995 and 2020. Since 1995, an average of 15 suitable ... days for fieldwork were observed between April 17 to May 15 in Ohio. With the Battle for the Belt ...