The use of excess conventional Phosphorus (P) fertilizers to improve agricultural productivity, in order to meet constantly increasing global food demand, potentially causes surface and ground water pollution, waterway eutrophication, soil fertility depletion, and accumulation of toxic elements such as high concentration of selenium (Se), arsenic (As) in the soil. Quite a number of soil microor...

T HE relationship of dietary fat to calcium and phosphorus utilization has been reported for the rat b y many investigators (Haldi et al., 1939; French, 1942; Calverley and Kennedy, 1949; Cheng et al., 1949 and Swell et al., 1956). High dietary levels of fat have increased fecal calcium in monogastric animals through the formation of insoluble sQaps.~(Boyd et al., 1932 and Fedde et al., 1960). ...

Phosphorus is a major essential macronutrient for plant growth, and most of the phosphorus in soil remains in insoluble form. Highly efficient phosphate-solubilizing bacteria can be used to increase phosphorus in the plant rhizosphere. In this study, 13 isolates were obtained from waste mushroom residues, which were composed of cotton seed hulls, corn cob, biogas residues, and wood flour. NBRIP...

Since 10 million tons of steelmaking slag, which contains a few percent phosphorus, are annually produced, the phosphorus amount in slag is equivalent to annual import volume rock Japan. Therefore, attracting attention as potential resources. Phosphorus-concentrated obtained by dephosphorization reaction between high hot metal and oxidizing at temperature phosphorous comparable that rock. Howev...

Comparative, experimental studies on sediment cores from freshwater and brackishmarine conditions reveal major differences in the benthic exchange of phosphate across the sediment-water interface when shifting from anoxic to oxic conditions. The flux of phosphate to the sediment during this shift was found to be mediated mainly by scavenging from newly formed colloidal ferric oxohydroxide. The ...

Phosphorus (P) is one of the most important nutrients for phytoremediation of arsenic (As)-contaminated soils. In this study, we demonstrated that As-hyperaccumulator Pteris vittata was efficient in acquiring P from insoluble phosphate rock (PR). When supplemented with PR as the sole P source in hydroponic systems, P. vittata accumulated 49% and 28% higher P in the roots and fronds than the -P ...

Phosphorus is ubiquitous in planet Earth and plays a fundamental role all living systems. Finding reasonable prebiotic source of phosphorus not trivial, as common sources where it present nowadays are the form phosphate minerals, which rather insoluble nonreactive materials, making unavailable for ready incorporation organisms. A possible from exogenous meteoritic bombardment and, particular, i...

1. After extraction of teichoic acid from cell walls of Bacillus licheniformis with dilute alkali, the insoluble residue contains the teichuronic acid and mucopeptide components and a small amount of residual phosphorus. 2. A complex of teichuronic acid and a part of the mucopeptide was isolated from the soluble fraction obtained by lysozyme treatment of alkali extracted walls. 3. Small-molecul...