Sorption Dynamics of Organic and Inorganic Phosphorus Compounds in Soil

2006 ◽  
Vol 35 (5) ◽  
pp. 1855-1862 ◽  
Author(s):  
A. S. Berg ◽  
B. C. Joern
Keyword(s):  
Inorganic Phosphorus ◽  
Phosphorus Compounds ◽  
Sorption Dynamics

scholarly journals Availability of organic and inorganic phosphorus compounds as phosphorus sources for Carex species

1996 ◽  
Vol 133 (2) ◽  
pp. 225-231 ◽  
Author(s):  
M. E. PÉREZ CORONA ◽  
I. VAN DER KLUNDERT ◽  
J. T. A. VERHOEVEN
Keyword(s):  
Inorganic Phosphorus ◽  
Phosphorus Compounds ◽  
Phosphorus Sources

CHARACTERIZATION OF MODEL AND SOIL ORGANIC MATTER METAL-PHOSPHATE COMPLEXES

1969 ◽  
Vol 49 (3) ◽  
pp. 365-373 ◽  
Author(s):  
M. Lévesque
Keyword(s):  
Organic Matter ◽  
Fulvic Acid ◽  
Organic Phosphorus ◽  
Inorganic Phosphorus ◽  
Chelating Resin ◽  
Alkaline Media ◽  
Phosphorus Compounds ◽  
Metal Phosphate ◽  
Reaction Products ◽  
Soil Extracts

Fulvic acid–metal–phosphate complexes prepared in the laboratory and corresponding complexes extracted (0.1 N NaOH and chelating resin) from a soil were characterized by means of electrophoresis, Sephadex gel filtration, and methods for differentiation of organic and inorganic phosphorus. The findings can be summarized as follows:(1) The prepared material in aqueous solution (after purification by dialysis) comprised three different entities: a fulvic acid–metal–phosphate complex, a fulvic acid–metal complex, and unbonded inorganic phosphate. These entities were reaction products obtained during the formation of fulvic acid–metal–phosphate complexes.(2) Upon hydrolysis in mild alkaline media, the metal–phosphate bonds of the fulvic acid–metal–phosphate complexes were broken; the fulvic acid–metal complexes, freed from the phosphate, remained intact.(3) While metal ions were necessary for bridging phosphorus and fulvic acid, phosphorus in turn may have bridged the fulvic acid–metal units.(4) Significant amounts of complexed inorganic phosphorus were found intermixed with organic phosphorus compounds in soil extracts; this suggested the existence of organic matter metal–phosphate complexes in soil.

scholarly journals Thermal Annealing of Recoil Atoms in Neutron Irradiation of Inorganic Phosphorus Compounds

1961 ◽  
Vol 34 (4) ◽  
pp. 590-591 ◽  
Author(s):  
Hiroshi Baba ◽  
Kenji Yoshihara ◽  
Hiroshi Amano ◽  
Kichizo Tanaka ◽  
Nagao Shibata
Keyword(s):  
Thermal Annealing ◽  
Neutron Irradiation ◽  
Inorganic Phosphorus ◽  
Phosphorus Compounds ◽  
Recoil Atoms

Hot atom chemistry of solid inorganic phosphorus compounds — alkali and ammonium orthophosphates

1970 ◽  
Vol 32 (10) ◽  
pp. 3191-3197 ◽  
Author(s):  
Terumasa Nakamura ◽  
Kikujiro Ujimoto ◽  
Norimasa Yoza ◽  
Shigeru Ohashi
Keyword(s):  
Inorganic Phosphorus ◽  
Phosphorus Compounds ◽  
Atom Chemistry

scholarly journals Abstract for the Organic Phosphorus 2013 conference - Panama City, Panama

2021 ◽  
Author(s):  
Vito Abbruzzese
Keyword(s):  
Agricultural Production ◽  
Mycorrhizal Fungi ◽  
Metal Ion ◽  
Inositol Phosphates ◽  
Organic Phosphorus ◽  
Inorganic Phosphorus ◽  
Phosphorus Compounds ◽  
Bacterial Strains ◽  
Dominant Form ◽  
Livestock Farms

Organic phosphorus (Po) compounds in soil often comprise a large component of soil total P (up to 84% for pasture), and represent a potentially significant source of P for agricultural production. Information on the quantities and forms of soil Po remains relatively limited, but we do know that inositol phosphates and their numerous metal-ion derivatives often constitute the dominant form of soil total Po. In addition, other phosphate esters, such as sugar phosphates, phospholipids and nucleic acids have often been identified in smaller quantities within soils. Various soil microorganisms, such as mycorrhizal fungi and phosphate-solubilising microorganisms (PSMs), can access inositol phosphates and other Po compounds. These microorganisms play an important role in the mineralisation of soil Po and the release of inorganic phosphorus compounds to soil solution or for direct plant uptake. Our research aims to explore the extent to which the coupled microbial and enzyme system with agricultural soils might be manipulated in order to increase the value derived from soil Po compounds as part of agricultural production. Specifically, we describe research focussed on inoculation experiments in which selected fungal and bacterial strains, alongside extracellular phosphatase enzymes, are trialled for their efficacy with respect to the mineralisation and solubilisation of Po compounds within soils. For example, arbuscular mycorrhizas (AMs) belonging to the phylum Glomeromycota could be introduced to soil ecosystems in order to benefit from the symbiotic endobacteria living inside the fungus whose genes are involved in mineral P acquisition. Such AMs could be mixed with strains of some of the most beneficial PSMs for Po mineralisation, e.g. Azospirillum spp., Bacillus spp., Penicillium spp. and Rhizobium spp. In addition, bacterial strains such as Bacillus amyloliquefaciens FZB24, FZB42 and FZB45, could be inoculated in soils due to their ability to secrete extracellular phosphatase enzymes. Our research focuses on the extent to which inoculations could increase the availability of phosphorus within soils for agricultural production, focussing largely on livestock farms and associated grass quality and yields. In particular, we will examine whether inoculation of livestock slurries and manures provides a vector for indirect manipulation of soil microbial and enzyme systems within livestock farms. The ultimate aim of this approach is to reduce the reliance of agricultural production on finite inorganic phosphorus fertiliser reserves.

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