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| Web URL(s): | http://archive.lib.msu.edu/tic/tgtre/article/1997may1a.pdf
Last checked: 12/20/2012
Requires: PDF Reader |
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| Publication Type:
| Professional |
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| Author(s): | Hull, Richard J. |
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| Author Affiliation: | Professor, and Chairman, Plant Sciences Department, University of Rhode Island |
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| Title: | Phosphorus usage by turfgrasses: The energy nutrient often neglected by turf managers |
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| Source: | TurfGrass TRENDS. Vol. 6, No. 5, May 1997, p. 1-12. |
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| Publishing Information: | Cleveland, OH: Advanstar Communications |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Phosphorus; Nutrients; Nutrient absorption; Plant nutrient analysis; Nutrient deficiency; Plant metabolism; Nutrient availability; Soil pH; Inorganic salts; Salts; Soil water; Phosphates; Nutrient uptake; Enzymes; Cell membranes; Cell membrane permeability; Amino acids; Proteins; DNA; Ribonucleic acid; Cell structure; Mobility; Phosphorus fertilizers; Cold resistance; Plant recovery; Root growth; Disease control; Nutrient balance; Disease resistance; Establishment rate; Poa annua; Mineral element toxicity
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| Abstract/Contents: | Discusses the role of phosphorus in turfgrass nutrition. States that "of the three general fertilizer nutrients, nitrogen (N), phosphorus (P) and potassium (K), phosphorus is often the least understood." Details the availability of phosphorus in soil, stating that "in acid soils, P is less available as a result of its association with iron (Fe), aluminum (Al) and manganese (Mn). In less acid or well limed soils, P is more abundant in soil water but still most of it precipitates out of soultion as salts of Ca [calcium], Mg and Al." Explains that "roots absorb phosphate by an active uptake process...[and] phosphate in the soil solution will never move freely into a root cell against such a steep concentration gradient." Describes the role of phosphorus in metabolic processes, stating that "anion uptake by cells is only one example of how phosphate bond energy is used to do the cell's work. There are numerous other cases where phosphate bonds permits metabolic reactions to proceed when otherwise they would not, or would do so very slowly." Also discusses phosphorus circulation in plants and functions of phosphorus in turfgrass. States that phosphorus may aid in "recovery from stress"; "reducing disease infection"; and "turf establishment." Concludes that "phosphorus can accumulate in the soil and if clippings are not removed there are few avenues by which it will be lost from the turf-soil environment. Consequently, annual applications of P to mature turf that has been in place for several years is probably unecessary. While P toxicity is unlikely to be a problem, additional applications will do no good and are a waste of money. Like all additions made to turf, applications of P should be based on soil or tissue analyses and a sound understanding of plant needs." |
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| Language: | English |
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| References: | 13 |
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| See Also: | See also related article, "Calcium usage by turfgrasses: The nutrient forgotten by turf managers", TurfGrass TRENDS, 6(10) October 1997, p. 6-13, R=59761 R=59761 |
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| Note: | Includes sidebar, "Phosphorus management of turf", p. 11
Figures
Tables
Reprinted in The Turf Line News, Vol. 142, October/November 1997, p. 28 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hull, R. J. 1997. Phosphorus usage by turfgrasses: The energy nutrient often neglected by turf managers. TurfGrass Trends. 6(5):p. 1-12. |
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Last checked: 12/20/2012
Requires: PDF Reader |
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