In this Issue:
  • Peanut Nodule Analysis to Assess Crop Health
  • Diagnosing the Cause of Yellowing Peanut Fields
  • Potassium Deficiency in Hay Fields can Enhance Disease Issues
  • Has Excess Rain Affected your Cotton Fertility Program?
  • Maximizing Cotton Profits With Poultry Litter
  • Evaluation of ESN Controlled Release Fertilizer for Florida Corn Production
  • Should You give a Nitrogen Credit to the Crop that Follows Peanuts?
  • Pegging Zone Calcium for Peanuts
  • Mehlich 3: Improved Soil Testing for Florida Growers
  • Yellowing in Peanuts Due to Manganese Deficiency
  • Fertility

    Peanut Nodule Analysis to Assess Crop Health

    David Hensley and Diane Rowland, UF/IFAS Agronomy Department

    One of the primary benefits of growing legumes like peanut is their ability to convert nitrogen in the atmosphere to a form that is available for use throughout the plant. They do this by forming a symbiosis (a mutual “partnership”) with bacteria known as Rhizobia. …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2017/08/18/peanut-nodule-analysis-to-assess-crop-health/

    Diagnosing the Cause of Yellowing Peanut Fields

    It happens every year. You cruise peanut fields and see spots of yellowing in a field.  The million dollar question is, “What is causing this yellowing?”  Unfortunately, there are many answers to this question. Problems that cause yellowing in peanuts can Include:

    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2017/08/18/diagnosing-the-cause-of-yellowing-in-peanut-fields/

    Potassium Deficiency in Hay Fields can Enhance Disease Issues

    The Yellow Bahiagrass Hayfield

    At the end of June, a Jackson County rancher noticed something strange about his hay field.  The field was gradually turning yellow and was not growing well.  Typically plants turn yellow as the result of a nitrogen deficiency, but this field had been fertilized for hay production.  Upon inspection, the leaves …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2017/07/21/potassium-deficiency-in-hay-fields-can-enhance-fungal-disease-issues/

    Has Excess Rain Affected your Cotton Fertility Program?

    Michael J. Mulvaney, UF/IFAS Soil Specialist & Glen Harris, UGA Soil Specialist

    If you’re like me, you’re watching this rain and wondering where your nutrients are in the soil profile.  The Jay FAWN station has recorded almost 20″ of rain so far in June.  Last week we talked about peanut gypsum …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2017/06/30/has-excess-rain-affected-your-cotton-fertility-program/

    Maximizing Cotton Profits With Poultry Litter

    Dennis O’Brien, USDA ARS Office of Communications

    A USDA Agricultural Research Service (ARS) agronomist in Mississippi has found a way to help cotton growers in the Southeast maximize profits when they use poultry litter as fertilizer.

    The practice makes sense. Poultry litter (chicken waste, spilled feed, excess feathers, and other …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2017/03/17/maximizing-cotton-profits-with-poultry-litter/

    Evaluation of ESN Controlled Release Fertilizer for Florida Corn Production

    Dr. Michael J. Mulvaney, Cropping Systems Specialist, WFREC, Jay, FL

    Now is the time to start thinking about nitrogen (N) management strategies for corn production in the Panhandle.  This is a follow-up to the March 2016 article: 

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2017/01/13/evaluation-of-esn-controlled-release-fertilizer-for-florida-corn-production/

    Should You give a Nitrogen Credit to the Crop that Follows Peanuts?

    Dr. Michael J. Mulvaney, Cropping Systems Specialist – University of Florida, West Florida Research and Education Center

    Raymond J. Geisel, Graduate Student – University of Florida, Soil and Water Science Department

    You’ve got your peanut crop out of the ground. Your harvest was good. With all this talk of an El Niño year, …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/10/23/should-you-give-a-nitrogen-credit-to-the-crop-that-follows-peanuts/

    Pegging Zone Calcium for Peanuts

    Glen Harris, UGA Soil Extension Specialist

    When we switched from growing small-seeded Georgia Green to large-seeded Georgia 06G we really thought we would need to increase our gypsum or calcium recommendations.  But after years of research we concluded that the recommendations didn’t need to change.  You can still use a pegging soil sample …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/06/12/pegging-zone-calcium-for-peanuts/

    Mehlich 3: Improved Soil Testing for Florida Growers

    There has been a change in the testing procedure at the UF/IFAS Lab which analyzes the nutrient profile of Florida’s soils. The Extension Soil Testing Laboratory (ESTL) has replaced the Mehlich 1 (M1) test with the Mehlich 3 (M3) test, but the question from many is why and what does this mean to the user …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2014/09/26/mehlich-3-improved-soil-testing-for-florida-growers/

    Yellowing in Peanuts Due to Manganese Deficiency

    Recently, I have visited several peanut fields in Holmes County that are demonstrating yellowing foliage that is easily observed from a passing vehicle.  There are several possible causes of symptoms like this including nitrogen problems due to wet soils or poor nodulation of roots, disease conditions like white mold, or a nutrient deficiency or toxicity.  …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2014/08/15/yellowing-in-peanuts-due-to-manganese-deficiency/

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