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phosphorus
phosphorus
A Dictionary of Food and Nutrition
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2005
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© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. (Hide copyright information)
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phosphorus An essential element, occurring in tissues and foods as phosphate (salts of
phosphoric acid),
phospholipids, and
phosphoproteins. In the body most (80%) is present in the skeleton and teeth as calcium phosphate (hydroxyapatite); the remainder is in the
phospholipids of cell membranes, in
nucleic acids, and in a variety of metabolic intermediates, including
ATP. The
parathyroid hormone controls the concentration of phosphate in the blood, mainly by modifying its excretion in the urine.
Adult needs (about 1.3 g per day) are always met. The
calcium to phosphate ratio of infant foods is, however, important. Phosphate deficiency is common in livestock and gives rise to
osteomalacia (also known as sweeny or creeping sickness).
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Phosphorus a major expense in formulas.(Bottom Line)(Statistical data)
Magazine article from: Feedstuffs; 11/3/2008; ; 700+ words
; PHOSPHORUS is the elephant in the room. Concerns about...implementation of regulations have focused attention on phosphorus levels in animal feeds. Short supplies and increasing demand for phosphorus to grow ethanol (corn) have had a dramatic...
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PHOSPHORUS AS CAPITAL INVESTMENT
News Wire article from: US Fed News Service, Including US State News; 7/14/2009; 700+ words
; ...press release: Investing in soil phosphorus may not seem worthwhile in difficult economic times, but building soil phosphorus levels may be economical in the...if soil tests show low to medium phosphorus levels. "At very low soil phosphorus...
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Phosphorus nutrition may be critical for multiparous cows.(Nutrition And Health/Dairy)
Magazine article from: Feedstuffs; 7/12/2004; ; 700+ words
; Phosphorus nutrition of multiparous dairy cows...less able than younger cows to mobilize phosphorus from bone reserves during this period...They pointed out that most recent phosphorus research has addressed requirements...
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Phosphorus chemicals--shortage of resources promotes industrial reformation.(Phosphorus)
Magazine article from: China Chemical Reporter; 5/6/2004; 700+ words
; The phosphorus chemical industry in China has maintained...2003, however, the price of yellow phosphorus started a remarkable and even skyrocketing...a reducing operating rate in yellow phosphorus producers. Enterprises with complete...
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Phosphorus. (Good Sources of Nutrients) (pamphlet)
Newspaper article from: Pamphlet by: U.S. Department of Agriculture; 1/1/1990; 700+ words
; ...Good Food Source? A good food source of phosphorus contains a substantial amount of phosphorus in relation to its calorie content and contributes...Recommended Dietary Allowance (U.S. RDA) for phosphorus in a selected serving size. The U.S...
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Phosphorus control and biosolids recycling
Magazine article from: BioCycle; 9/1/1998; ; 700+ words
; ...efforts to protect surface waters from phosphorus have an impact on the land application...application of materials containing phosphorus include Maryland, Mississippi and Louisiana...aggressively in Maryland. Although phosphorus controls are inevitable for most parts...
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Phosphorus derivatives showing muscle.
Magazine article from: Chemical Market Reporter; 12/15/1997; ; 700+ words
; ELEMENTAL PHOSPHORUS' largest end use, thermal phosphoric acid, continues...acid production. Concerns about the demise of the phosphorus market may be premature, however, as phosphorus ([P.sub.4]) is increasingly being targeted...
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PROPER PHOSPHORUS MANAGEMENT IS KEY TO OPTIMIZING MONTANA CROP YIELD
News Wire article from: US Fed News Service, Including US State News; 2/23/2007; 700+ words
; ...press release: Proper management of phosphorus fertilizer applications is key to optimizing...State University Extension specialist. Phosphorus is second only to nitrogen in the amount...cropland in Montana. Unlike nitrogen, phosphorus is very difficult for plants to access...
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Phosphorus reduction techniques examined.
Magazine article from: Feedstuffs; 8/2/1999; ; 700+ words
; ...TABLE 2. Relative bioavailability of phosphorus in commonly supplemented feed phosphate...Source: Axe, 1998 TABLE 3. Phytate phosphorus content of some common feedstuffs Phytate...of total Feedstuff Number of samples phosphorus, % phosphorus Com 10 0.26 66 Grain...
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Phosphorus world: chemistry, biochemistry and technology (CD-ROM).(properties)
Magazine article from: Chemistry and Industry; 12/18/2006; ; 700+ words
; Phosphorus world: chemistry, biochemistry and...Quite rightly, every lecture course on phosphorus chemistry I have attended has begun...fire. This name was soon replaced by phosphorus, from the Greek phosphoros, meaning...
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Phosphorus
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
Phosphorus Description Phosphorus (chemical symbol P) is a mineral discovered by the German alchemist...reactions for both plants and animals and is essential to all life. Phosphorus is found in living things, in soil and rock, mostly as chemical...
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phosphorus
Book article from: The Columbia Encyclopedia, Sixth Edition
phosphorus [Gr.,=light-bearing], nonmetallic...valence -3, +3, or +5. Solid phosphorus has a tetratomic molecule (P 4 ) with...123.8952 atomic mass units (amu). Phosphorus was discovered c.1674 by Hennig Brand...
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Phosphorus (revised)
Book article from: Chemical Elements: From Carbon to Krypton
PHOSPHORUS (REVISED) Note: This article, originally...2006 for the eBook edition. Overview Phosphorus is found in Group 15 (VA) of the periodic...elements are related to each other. Phosphorus is part of the nitrogen family along...
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phosphorus cycle
Book article from: A Dictionary of Biology
phosphorus cycle The cycling of phosphorus between the biotic and abiotic components of the environment...phosphates are returned to the soil, seas, rivers, and lakes. Phosphorus-containing rocks are mined for the manufacture of fertilizers...
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Periodic Table of the Elements: Phosphorus
Book article from: The Columbia Encyclopedia, Sixth Edition
Periodic Table of the Elements: Phosphorus Periodic Table of the Elements: Phosphorus Atomic Number: 15 Atomic Symbol: P Phosphorus Atomic Weight: 30.97376 Electron Configuration: 2 · 8 · 5
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