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Foliar uptake of nutrients applied in solution to Creeping Bentgrass, Annual Bluegrass (Poa annua), and Ultra-Dwarf Bermudagrass (2009)

Title:
Foliar uptake of nutrients applied in solution to Creeping Bentgrass (Agrostis palustris Huds.),
Annual Bluegrass (Poa annua var. reptans (Hausskn.) Timm) and Ultra-Dwarf Bermudagrass
(Cynodon dactylon x C. transvaalensis Burtt-Davy).

Publication Date:
06-24-2009

Abstract: Liquid applications of nutrients to turfgrass are a routine management practice. A better understanding of nutrient chelating chemistry coupled with a measurable increase in products marketed to turfgrass professionals purported to facilitate effective and efficient absorption of nutrients into turfgrass leaves has resulted in a need for a better understanding of the capacity of turfgrass species to absorb essential nutrient elements. Research was conducted with the objectives to 1) determine the foliar uptake of nutrients in solution to Creeping Bentgrass (Agrostis palustris Huds.), Annual Bluegrass (Poa annua var. reptans (Hausskn.) Timm) and Ultra-Dwarf Bermudagrass (Cynodon dactylon x C. transvaalensis Burtt-Davy).and 2) determine temporal, location and seasonal differences in foliar uptake among these same species. Based on the results of this study it was found that foliar uptake was significantly affected by source of nutrient with organic chelating agent, when differences were identified, facilitating greater uptake vs. synthetic (i.e. EDTA) chelation. Time of year affected absorption efficiency with cooler temperature resulting in lower uptake. This is speculated to be highly influenced by ambient temperatures at time of application. Volatility losses were not measured in this study so caution should be exercised for interpretation of nitrogen results, especially NH4. The species investigated exhibited appreciable uptake of nutrients applied in solution. Liquid applications and more specifically, organically chelated foliar products, could reduce total nutrient applications and decrease potential for surface and ground water contamination due to decreased migration of select nutrients to the root zone.

Attachments:
Download this file (FoliarUptakeOfNutrients.pdf)FoliarUptakeOfNutrients.pdf[Peer Reviewed Research!]194 kB

Research From Oregon State University

  • Effect of PK Plus® and a Fungicide on Microdochium Patch (Microdochium nivale) Incidence and Severity on an Annual Bluegrass (Poa annua) Putting Green - 2010

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    Effect of PK Plus® and a Fungicide on Microdochium Patch (Microdochium nivale) Incidence and Severity on an Annual Bluegrass (Poa annua) Putting Green (Golembeiwski, 2010)

    Summary
    Turf managers require alternate strategies for managing diseases such as microdocium patch (Microdochium nivale), prevously referred to as pink snow mold or fusarium patch, and specifically where the disease occurs as a chronic condition during cool, wet/humid weather. This chronic pressure occurs most commonly in coastal areas all season, or in the spring/early… Read More +

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Research From Clemson University

  • Foliar uptake of nutrients applied in solution to Creeping Bentgrass, Annual Bluegrass (Poa annua), and Ultra-Dwarf Bermudagrass (2009)

    Title:
    Foliar uptake of nutrients applied in solution to Creeping Bentgrass (Agrostis palustris Huds.),
    Annual Bluegrass (Poa annua var. reptans (Hausskn.) Timm) and Ultra-Dwarf Bermudagrass
    (Cynodon dactylon x C. transvaalensis Burtt-Davy).

    Publication Date:
    06-24-2009

    Abstract: Liquid applications of nutrients to turfgrass are a routine management practice. A better understanding of nutrient chelating chemistry coupled with a measurable increase in products marketed to turfgrass professionals purported to facilitate effective and efficient absorption of nutrients into turfgrass leaves has resulted in a need for… Read More +

  • Ultradwarf Bermudagrass Performance on Greensmix Differing in Water Holding Capacity (2003)

     

    Ultradwarf Bermudagrass Performance on Greensmix Differing in Water Holding Capacity (2003)

    Introduction
    Ultradwarf bermudagrasses have become popular in the Carolinas as an alternative to TifDwarf bermudagrass and bentgrass. In many cases, the new bermudagrass varieties have been planted to newly constructed greens or renovated greens that have very low peat and high sand contents. These high infiltration rate and low water and nutrient holding capacity mixes are typically used for growing bentgrass. Leaching of nutrients and… Read More +

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