Full TGIF Record # 58814
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Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/34/2/article-p265.xml?rskey=2QeIHq
    Last checked: 11/14/2019
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Author(s):Miller, Grady L.
Author Affiliation:Department of Environmental Horticulture, University of Florida
Title:Potassium application reduces calcium and magnesium levels in bermudagrass leaf tissue and soil
Section:Turf management
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Source:HortScience. Vol. 34, No. 2, April 1999, p. 265-268.
# of Pages:4
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Potassium fertilizers; Calcium; Magnesium; Cynodon dactylon; Cynodon transvaalensis; Leaf tissue; Soil chemistry; Nutrient availability; Potassium chloride; Potassium sulfate; Comparisons; Application rates; Cultivar variation
Cultivar Names:Tifdwarf; Tifway
Abstract/Contents:"High rates of potassium (K) are often applied in an attempt to increase stress tolerance of hybrid bermudagrass [Cynodon dactylon (L.)] Pers. x C. transvaalensis Burtt Davy] turfs. Two field-grown bermudagrass cultivars, 'Tifdwarf' and 'Tifway', were used to determine the influence of applied K on plant nutrient content and nutrient retention in two soils. Six rates of K ranging from 0 to 390 kg· ha⁻¹ were applied twice per month each growing season from 1992 to 1994. The cultivars were established on both a sand-peat (9:1 by volume) and loamy sand. Potassium chloride and K^D[^D2SO₄ were compared as sources of K, and were applied simultaneously with N applications. Extactable soil K and leaf tissue K concentrations increased with increasing K rates. There was a critical K fertilization level (74 to 84 kg*ha⁻¹) for each cultivar and medium combination beyond which no increase in tissue concentration was observed. Increasing K fertilization resulted in a decrease in extractable Ca and Mg in both media with corresponding decreases in tissue Ca and Mg concentrations. High K rates appear to increase the potential for Ca and Mg deficiencies in bermudagrass, indicating that rates higher than those that provide sufficient K levels for normal growth should not be used."
See Also:Other items relating to: MICRO

Other items relating to: Potassium
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Miller, G. L. 1999. Potassium application reduces calcium and magnesium levels in bermudagrass leaf tissue and soil. HortScience. 34(2):p. 265-268.
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DOI: 10.21273/HORTSCI.34.2.265
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    Last checked: 11/14/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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