In this Issue:
  • Using the Linear Bed Foot System for Vegetable Fertilization
  • Environmentally Smart Nitrogen (ESN) as a Controlled-release Nitrogen source for Corn and Cotton
  • Biochar: New Applications of an Old Agricultural Practice
  • Are You Sure You Need That Gypsum? Calcium Induced Deficiencies in Vegetables
  • Manage Potassium to Control Cotton Stemphylium Leafspot
  • UF/IFAS Evaluating Soil Mapping Technology for Variable Rate Applications
  • New Fact Sheets Added to EDIS in February
  • Fertilization

    Using the Linear Bed Foot System for Vegetable Fertilization

    Some production systems, particularly vegetables, utilize wide row spacing (anywhere from 4 to 8 foot wide). In these systems it is of economic and environmental importance to fertilize the crop root zones evenly, and not fertilize the row middles, where nutrients will go to waste or could even become a pollutant. The linear bed foot …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2016/08/26/using-the-linear-bed-foot-system-for-vegetable-fertilization/

    Environmentally Smart Nitrogen (ESN) as a Controlled-release Nitrogen source for Corn and Cotton

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

    Environmentally Smart Nitrogen (ESN) is a polymer-coated urea formulated as 44-0-0. The reason it contains 2% less nitrogen (N) than urea (which is 46-0-0) is due to the weight of the polymer coating.  ESN is commercially available in bulk in some parts of …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2016/04/01/environmentally-smart-nitrogen-esn-as-a-controlled-release-nitrogen-source-for-corn-and-cotton/

    Biochar: New Applications of an Old Agricultural Practice

    Ramon G. Leon, UF/IFAS Weed Science Specialist, West Florida Research and Education Center-Jay, FL

    Biochar is a solid byproduct of burning wood or plant residues rich in cellulose under high temperatures and low oxygen conditions. This process is called pyrolysis, and it is one of the systems that is currently used for biofuel …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/08/07/biochar-new-applications-of-an-old-agricultural-practice/

    Are You Sure You Need That Gypsum? Calcium Induced Deficiencies in Vegetables

    By Josh Freeman (University of Florida, IFAS Extension, Assistant Professor, Horticultural Science) and Mark Reiter (Associate Professor and Extension Specialist, Virginia Tech)

    Many growers live with the mindset that vegetable crops need a tremendous amount of calcium to promote strong growth and prevent fruit disorders like blossom-end rot (BER). There is no doubt BER can …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/07/10/are-you-sure-you-need-that-gypsum-calcium-induced-deficiencies-in-vegetables/

    Manage Potassium to Control Cotton Stemphylium Leafspot

    Now is the time to implement potassium (K) management plans for cotton. Late-season K deficiency is linked to cotton leafspot (Stemphylium) disease. Stemphylium begins with minor leaf spotting and can lead to severe premature defoliation under certain circumstances.

    Potassium in plant cells is vital for the regulation of water use (through stomatal activity) and crop …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/06/05/manage-potassium-to-control-cotton-stemphylium-leafspot/

    UF/IFAS Evaluating Soil Mapping Technology for Variable Rate Applications

    The next generation of agriculture Best Management Practices (BMPs) will likely include new soil mapping technologies. Resulting maps are increasingly being used to guide variable applications of irrigation, fertilizer, herbicides, and pesticides in the field. On-the-go soil sensors have spatial dependence ranges less than the distances used by USDA soil surveys, or even most grid …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/05/29/ufifas-evaluating-soil-mapping-technology-for-variable-rate-applications/

    New Fact Sheets Added to EDIS in February

    The University of Florida IFAS Extension offers a database of fact sheets available for free download on the Internet called EDIS (Electronic Data Information Source) that has many publications of interest to farmers and ranchers in Northwest Florida. Each fact sheet has a PDF or printer friendly link in the top left corner. The following are just …

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    Permanent link to this article: http://nwdistrict.ifas.ufl.edu/phag/2015/03/13/new-fact-sheets-added-to-edis-in-february/

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