Application of a Modified Langmuir Isotherm to Phosphate Sorption by some Acid Soils

1988 ◽  
Vol 52 (1) ◽  
pp. 97-102 ◽  
Author(s):  
S. Kuo
Keyword(s):  
Langmuir Isotherm ◽  
Acid Soils ◽  
Phosphate Sorption

Modelling phosphate-sorption kinetics in acid soils

1995 ◽  
Vol 46 (2) ◽  
pp. 239-245 ◽  
Author(s):  
D. FREESE ◽  
W.H. RIEMSDIJK ◽  
S.E.A.T.M. ZEE
Keyword(s):  
Acid Soils ◽  
Sorption Kinetics ◽  
Phosphate Sorption

EFFECT OF TEMPERATURE ON PHOSPHATE SORPTION AND DESORPTION IN TWO ACID SOILS

Soil Science ◽  
1982 ◽  
Vol 133 (3) ◽  
pp. 160-166 ◽  
Author(s):  
S. H. CHIEN ◽  
N. K. SAVANT ◽  
U. MOKWUNYE
Keyword(s):  
Acid Soils ◽  
Effect Of Temperature ◽  
Phosphate Sorption

Phosphorus sorption by acid soils: comparative study of some parameters

1987 ◽  
Vol 109 (1) ◽  
pp. 87-94 ◽  
Author(s):  
J. Arines ◽  
Maria Sainz
Keyword(s):  
Comparative Study ◽  
Buffer Capacity ◽  
Acid Soils ◽  
Phosphorus Sorption ◽  
Sorption Behaviour ◽  
Phosphate Sorption ◽  
North West ◽  
Sorption Parameter ◽  
Best Parameter ◽  
Sorption Parameters

SummaryA comparative study of sorption maxima (simple and double Langmuir equations) and buffer capacity of acid soils was made in order to select the most useful P-sorption parameter. Data were obtained from 20 acid soils from Galicia (north-west Spain) and selection was made by linear and multiple regressions among sorption parameters, and between these and some soil characteristics related to phosphate sorption (clay and organicmatter content, pH in NaF, and 0·5 M-CuCl2-extracted Al).The phosphate buffer capacity, determined by the slope of the regression ‘sorbed-P v. logc’, was the best parameter to represent soil phosphate sorption behaviour. 0·5 M-CuCl2- extracted Al was the edaphic characteristic which best related to sorption properties.

Effect of liming on phosphate sorption by acid soils

1990 ◽  
Vol 41 (1) ◽  
pp. 165-175 ◽  
Author(s):  
R. NAIDU ◽  
J. K. SYERSY ◽  
R. W. TILLMAN ◽  
J. H. KIRKMAN
Keyword(s):  
Acid Soils ◽  
Phosphate Sorption

Pyrophosphate as a source of phosphorus for maize in some acid soils from southern Nigeria

1983 ◽  
Vol 100 (2) ◽  
pp. 477-483
Author(s):  
F. O. Uzu ◽  
E. J. Udo ◽  
A. S. R. Juo
Keyword(s):  
Adsorption Capacity ◽  
Soil Type ◽  
Langmuir Isotherm ◽  
Acid Soils ◽  
Bonding Energy ◽  
Energy Index ◽  
Short Term ◽  
Southern Nigeria ◽  
Rate Of Hydrolysis ◽  
Glasshouse Experiment

SUMMARYHydrolysis and sorption reaction of pyrophosphate (PP) in soils and uptake of PP by maize were studied using some acid soils from southern Nigeria. Rate of hydrolysis varied with the soil type, and half-lives of hydrolysis ranged from 10 to over 40 days in unsterilized soils and more than 40 days in all cases when the soils were sterilized. An appreciable fraction (over 40%) of the added PP resisted hydrolysis, the effect being more pronounced in the sterilized soils.Sorption of both PP and orthophosphate (OP) by soils followed the Langmuir isotherm. The adsorption capacity and bonding energy index for all soils were greater for PP than for OP.A short-term glasshouse experiment showed that PP was as good as OP as a source of P to maize. When the soils were limed to pH 6, PP appeared to be superior to OP.

Phosphate sorption by jurassic oolitic limestones

Geoderma ◽  
1975 ◽  
Vol 13 (3) ◽  
pp. 257-264 ◽  
Author(s):  
I.C.R. Holford ◽  
G.E.G. Mattingly
Keyword(s):  
Phosphate Sorption
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