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  1. C.O.R.N. Newsletter 2009-12

    https://agcrops.osu.edu/newsletters/2009/12

    full season hybrids. In delayed planting situations, use the optimal seeding rates for the yield ... potential of each field. Recommended seeding rates for early planting dates are often 10% higher than the ... more rapid and uniform. So, as planting is delayed, seeding rates may be lowered (decreased to 3 to 5% ...

  2. C.O.R.N. Newsletter 2009-22

    https://agcrops.osu.edu/newsletters/2009/22

    roots chewed back to the stalk or tunneling in the roots. Root systems can be rated using the 0 to ... economic injury has occurred. Modified Node-Injury Scale. Rating Visible Damage to Roots 0 no visible ... inch per day. Evapotranspiration rates in corn depend on temperature, humidity, wind, solar radiation ...

  3. Cool Nights and Lots of Moisture can Equal Sclerotinia Stem Rot

    https://agcrops.osu.edu/newsletter/corn-newsletter/2017-21/cool-nights-and-lots-moisture-can-equal-sclerotinia-stem-rot

    infection does occur the disease will develop at a slower rate.  If the resistance scores are good – then ...

  4. Bt Resistance in Western Corn Rootworm—The 3rd Shoe Has Dropped

    https://agcrops.osu.edu/newsletter/corn-newsletter/bt-resistance-western-corn-rootworm%E2%80%94-3rd-shoe-has-dropped

    use the 0-3 node injury scale to rate feeding (see this guide by Dr. Chris DiFonzo @ Michigan State ...

  5. Is yield jeopardized when replants result in excessive stands?

    https://agcrops.osu.edu/newsletter/corn-newsletter/2017-19/yield-jeopardized-when-replants-result-excessive-stands

    treatments for killing an original stand of corn when replanting herbicide resistant corn. A seeding rate of ...

  6. C.O.R.N. Newsletter 2013-40

    https://agcrops.osu.edu/newsletters/2013/40

    year, wet, the combinations of seed treatments did a much better job and at the higher rates.  There ... have been lots of questions over the past few days on what fungicides to apply; what rates to use; and ... – yield benefits can be measured.  The two active ingredients are applied at totally different rates.  For ...

  7. C.O.R.N. Newsletter 2013-07

    https://agcrops.osu.edu/newsletters/2013/07

    documented faster emergence rates with shallower planting depths, the comparisons have often included deeper ... Crop Management Award to determine the response of hybrids with different drought tolerance ratings to ... tolerance ratings for the three hybrids were 7, 8, and 6, respectively; based on scale where 1 is poor and ...

  8. C.O.R.N. Newsletter 2008-13

    https://agcrops.osu.edu/newsletters/2008/13

    applied at three times the rate of DAP or MAP, plant needs are highly unlikely to be met by rock phosphate ... application. Even if the stated 3x rate of rock phosphate application worked on all soils (not just P-depleted ... already exceed the cost of using TSP, MAP, or DAP at a lower rate. Another suggested use of rock phosphate ...

  9. C.O.R.N. Newsletter 2009-09

    https://agcrops.osu.edu/newsletters/2009/09

    Lower Rates? Reminders on Preplant Burndown Treatments, Including Marestail and Dandelion Alfalfa Weevil ... Application at Wheat Green-up? Pelletized Lime, Can I Get Away with Lower Rates? Authors: Robert Mullen, Keith ... Diedrick This question comes up every year – can I put down a lower rate of pelletized lime and achieve the ...

  10. OSU Extension to Hold NW Ohio Precision Ag Day and “Fert-Cert” August 4th

    https://agcrops.osu.edu/newsletter/corn-newsletter/2015-20/osu-extension-hold-nw-ohio-precision-ag-day-and-%E2%80%9Cfert-cert%E2%80%9D

    rate and source considerations by Eric Richer, OSUE Fulton County.  The morning will wrap up with ...

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