Adsorption by soil of water-soluble phosphate from earthworm casts

1987 ◽  
Vol 97 (2) ◽  
pp. 223-231 ◽  
Author(s):  
M. C. H. Mouat ◽  
R. G. Keogh
Keyword(s):  
Water Soluble ◽  
Soluble Phosphate ◽  
Earthworm Casts

Novel water soluble phosphate prodrugs of taxol® possessing in vivo antitumor activity

1993 ◽  
Vol 3 (8) ◽  
pp. 1761-1766 ◽  
Author(s):  
Yasutsugu Ueda ◽  
Amarendra B. Mikkilineni ◽  
Jay O. Knipe ◽  
William C. Rose ◽  
Anna Maria Casazza ◽  
...  
Keyword(s):  
Antitumor Activity ◽  
Water Soluble ◽  
Soluble Phosphate ◽  
In Vivo Antitumor Activity

The synthesis of water-soluble phosphate pillar[5]arenes functionalized graphene as a fluorescent probe for sensitive detection of paraquat

Talanta ◽  
2019 ◽  
Vol 195 ◽  
pp. 472-479 ◽  
Author(s):  
Xiaoping Tan ◽  
Yue Wu ◽  
Sha Yu ◽  
Tingying Zhang ◽  
Hexiang Tian ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Water Soluble ◽  
Sensitive Detection ◽  
Soluble Phosphate ◽  
Functionalized Graphene

Antifouling effect of water-soluble phosphate glass frit for filtration plants

2019 ◽  
Vol 65 (2) ◽  
pp. 363-370
Author(s):  
Kyudae Shim ◽  
Mohamed Abdellatif ◽  
Jeryang Park ◽  
Dongkyun Kim
Keyword(s):  
Phosphate Glass ◽  
Glass Frit ◽  
Water Soluble ◽  
Soluble Phosphate ◽  
Effect Of Water

Comparative Analysis of Soluble Phosphate Amendments for the Remediation of Heavy Metal Contaminants: Effect on Sediment Hydraulic Conductivity

2006 ◽  
Vol 3 (3) ◽  
pp. 219 ◽  
Author(s):  
Dawn M. Wellman ◽  
Jonathan P. Icenhower ◽  
Antoinette T. Owen
Keyword(s):  
United States ◽  
Hydraulic Conductivity ◽  
Pore Structure ◽  
Pore Space ◽  
The United States ◽  
Water Soluble ◽  
Department Of Energy ◽  
United States Department ◽  
Soluble Phosphate ◽  
Long Chain

Environmental Context. The contamination of surface and subsurface geologic media by heavy metals and radionuclides is a significant problem within the United States Department of Energy complex as a result of past nuclear operations. Water-soluble phosphate compounds provide a means to inject phosphorus into subsurface contaminant plumes, to precipitate metal ions from solution. However, phosphate phases can form within the sedimentary pore structure to block a fraction of the pore space and inhibit further remediation of the contaminant plume. A series of tests have been conducted to evaluate changes in sedimentary pore structure during the application of several proposed phosphate remediation amendments. Abstract. A series of conventional, saturated column experiments have been conducted to evaluate the effect of utilizing in situ, soluble, phosphate amendments for subsurface metal remediation on sediment hydraulic conductivity. Experiments have been conducted under mildly alkaline and calcareous conditions representative of conditions commonly encountered at sites across the arid western United States, which have been used in weapons and fuel production and display significant subsurface contamination. Results indicate that the displacement of a single pore volume of either sodium monophosphate or phytic acid amendments causes approximately a 30% decrease in the hydraulic conductivity of the sediment. Long-chain polyphosphate amendments afford no measurable reduction in hydraulic conductivity. These results demonstrate (1) the efficacy of long-chain polyphosphate amendments for subsurface metal sequestration; and (2) the necessity of conducting dynamic experiments to evaluate the effects of subsurface remediation.

Evaluation of some sources of fertilizer phosphorus in two cycles of a paddy-wheat cropping sequence

1977 ◽  
Vol 88 (3) ◽  
pp. 625-630 ◽  
Author(s):  
H. S. Hundal ◽  
P. S. Deol ◽  
G. S. Sekhon
Keyword(s):  
Relative Efficiency ◽  
Rock Phosphate ◽  
Ammonium Phosphate ◽  
Water Soluble ◽  
Dicalcium Phosphate ◽  
Slight Reduction ◽  
Soluble Phosphate ◽  
Water Soluble P ◽  
Cropping Sequence ◽  
Soluble P

SUMMARYA field experiment was made on Gurdaspur clay loam to assess the relative efficiency of various sources of fertilizer phosphorus for a paddy-wheat cropping sequence. Urea ammonium phosphate, superphosphate, a nitrophosphate fertilizer containing 30% water-soluble P and fertilizers containing 50 and 70% water-soluble P prepared from the nitrophosphate and superphosphate, dicalcium phosphate and rock phosphate were applied to the paddy crop at the rate of 0, 15, 30, 45 and 60 kg p2O6/ha and to wheat at double these rates.The cumulative yield data for paddy and wheat show a slight reduction in efficiency of phosphatio fertilizers, with the exception of dicalcium phosphate, as their watersoluble content decreased below 70%. In general, the relative efficiency of the less water-soluble sources and of rock phosphate was considerably higher for paddy than for wheat.The results show that the relative efficiency of low water-soluble phosphate fertilizers increased with time. The efficiency of phosphorus fertilizers declined with the rate of their application, more so in the case of higher water-soluble materials.

Evaluation of phosphate fertilizers: I. Immediate value of dicalcium phosphate, nitrophosphates, Gafsa rock phosphate basic slag and potassium metaphosphate for barley and ryegrass

1968 ◽  
Vol 70 (2) ◽  
pp. 131-138 ◽  
Author(s):  
G. E. G. Mattingly ◽  
A. Penny
Keyword(s):  
Total Phosphorus ◽  
Rock Phosphate ◽  
Growing Season ◽  
Water Soluble ◽  
Dicalcium Phosphate ◽  
Soluble Form ◽  
Soluble Phosphate ◽  
Basic Slag ◽  
Phosphate Fertilizers

SUMMARYThree granular nitrophosphates containing 5, 26 and 50 % of their total phosphorus in a water-soluble form, granular potassium metaphosphate, Gafsa rock phosphate and basic slag (both as powders) were compared with granular superphosphate and powdered dicalcium phosphate as standards in two annual experiments with ryegrass and in three experiments with barley.In 1960 total yields of ryegrass during a whole season were similar with all fertilizers. Nitrophosphate-5, Gafsa rock phosphate and basic slag acted more slowly than granular superphosphate and grass grew less well and took up less phosphorus during the first 12 weeks. Over the whole growing season more phosphorus was taken up by grass from powdered dicalcium phosphate and from granular potassium metaphosphate (0.5–2.0 mm) than from granular superphosphate (1.0–4.0 mm).Powdered dicalcium phosphate was equivalent to about 60% as much phosphorus applied as superphosphate to barley. Rock phosphate was almost inert and percentage granular superphosphate equivalents of basic slag and potassium metaphosphate were 22 and 23% respectively. Percentage superphosphate equivalents of the granular nitrophosphates were 1, 25 and 53% and almost equal to the water-soluble phosphate they contained.

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