EXCHANGEABLE ALUMINUM AND PHOSPHORUS SORPTION OF SOME ACID SOILS OF MYSORE STATE

Soil Science ◽  
1974 ◽  
Vol 118 (4) ◽  
pp. 243-246
Author(s):  
B. S. JAI PRAKASH ◽  
T. D. BHASKER
Keyword(s):  
Acid Soils ◽  
Phosphorus Sorption ◽  
Exchangeable Aluminum ◽  
Mysore State

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.

scholarly journals Relationship Between Exchangeable Alumunium and Phosphorus Sorption Parameters of Indonesian Acid Soils

2004 ◽  
Vol 6 (2) ◽  
pp. 70-74
Author(s):  
A Hartono
Keyword(s):  
Acid Soils ◽  
Sorption Isotherms ◽  
Clayey Soils ◽  
Phosphorus Sorption ◽  
General Reaction ◽  
P Sorption ◽  
Hydrous Oxides ◽  
Sorption Parameters ◽  
Main Component

In acid soils, phosphorus (P) sorption is generally attributed to hydrous oxides of Fe and Aluminum (AI) particularly intropical soils with low pH. However, reports concerning the role of exchangeable AI in P sorption mechanism are very liltle.Phosphorus (P) sorption isotherms were studied in fifteen acid upland soils containing different amount of exchangeable AI. Psorption characteristics were satisfactorily described by the Langmuir equation. which was used to determine P sorptionmaxima and bonding energies, with r values ranging from 0.97 to 0.99. The soils varied widely in their capacities to sorb P.P sorption maxima rangedfrom 303 to 1429 mg kg-I (mean 627 mg kg-I) and bonding energies from 0.65 to 8.00 L mtl (mean 2.39 L mg-I). Exchangeable AI was found not correlated with P sorption maxima (r = -0.11) but significantly correlated with P bonding energies (r = 0.68**). This was clearly shown by clayey soils from Java and Sumatra but not in sandy soils fromKalimantan. The results suggested that in general. reaction of exchangeable AI with P increased P bonding energy butexchangeable AI was not the main component in P sorption maximum

scholarly journals Suppression of Fusarium solani f. sp. phaseoli on Bean by Aluminum in Acid Soils

1999 ◽  
Vol 89 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Hiromitsu Furuya ◽  
Tadashi Takahashi ◽  
Tsutomu Matsumoto
Keyword(s):  
Fusarium Solani ◽  
Volcanic Ash ◽  
Disease Incidence ◽  
Clay Mineralogy ◽  
Acid Soils ◽  
Soil Samples ◽  
Infested Soil ◽  
Soil Aluminum ◽  
Exchangeable Aluminum

The severity of bean root rot caused by Fusarium solani f. sp. phaseoli in vitro was studied with regard to exchangeable soil aluminum for 25 soil samples collected from northeastern Honshyu island, Japan. Of these, 24 were Andosols, typically acidic and of volcanic ash origin. Disease severity was assessed based on the number of lesions produced by the pathogen on a 6-cm section of bean stem buried and incubated for 8 days at 25°C in artificially infested soil samples. The number of lesions differed considerably among soil samples. In all soils in which disease incidence was very low, macroconidial germination was strongly inhibited. The inhibition was observed in all soil samples with exchangeable aluminum contents of at least 0.4 meq/100 g of soil, although it is unclear if this concentration is the lowest limit for inhibition. When soil pH was 5.6 or lower, higher amounts of exchangeable aluminum were detected from soils in which the major clay mineralogy was chloritized 2:1 minerals, while no or limited amounts of aluminum were detected from soils in which the major clay mineralogy was allophane/imogolite. Macroconidial germination and disease incidence are thus closely related to clay mineralogy, which regulates the behavior of exchangeable aluminum.

scholarly journals Production of soybean and maize plants cultivated in acid soils with high contents of exchangeable aluminum

2019 ◽  
Vol 14 (3) ◽  
pp. 1-11
Author(s):  
G.O.M. Cunha ◽  
J.A. Almeida ◽  
P.R. Ernani ◽  
C.A. Souza ◽  
L.C. Gatiboni ◽  
...  
Keyword(s):  
Acid Soils ◽  
Exchangeable Aluminum ◽  
Maize Plants

WATER-SOLUBLE AND EXCHANGEABLE ALUMINUM IN ACID SOILS AS AFFECTED BY LIMING AND FERTILIZATION

1967 ◽  
Vol 47 (3) ◽  
pp. 203-210 ◽  
Author(s):  
L. B. MacLeod ◽  
L. P. Jackson
Keyword(s):  
Soil Ph ◽  
Surface Soil ◽  
Acid Soils ◽  
Water Soluble ◽  
Ph Values ◽  
Exchangeable Al ◽  
Exchangeable Aluminum ◽  
High Fertilization ◽  
Surface Soil Ph ◽  
Representative Samples

The concentration of water-soluble and exchangeable aluminum was determined in the 0–15-, 15–23-, 23–30- and 30–45-cm depths of a Podzol limed to provide surface soil pH values ranging from 4.5 to 7.2. Both soluble and exchangeable Al decreased with increasing soil pH. Soluble Al ranged from 5.7 ppm at pH 4.4 with high fertilization to 0.3 ppm at pH 6.5 with similar fertilization. Increasing the rate of fertilization at pH 4.5 raised the soluble Al from 2.6 to 5.7 ppm. Fertilization still doubled the soluble Al in soil at pH 5.1 but had little effect as the pH was raised further to 5.8 and 6.5. Soluble Al in the subsoil samples was less than in surface soil samples at the same pH, while with exchangeable Al, the concentration was greater in the subsoil than in the surface soil samples.There was not a direct relationship between pH and soluble Al, although the highest soluble Al concentrations occurred at lowest soil pH levels. Analyses of 30 representative samples of surface soil taken from farmers' fields showed that the soluble Al concentration at pH 4.0 ranged from 3.5 to 4.8 ppm, while at a pH of 5.0 it ranged from 0.2 to 2.8 ppm. The concentrations of soluble Al in many of these soils exceeded the levels previously shown by nutrient solution experiments to severely restrict growth of legumes and some varieties of barley.

scholarly journals Phosphorus Sorption and Lime Requirements of Maize Growing Acid Soils of Kenya

2013 ◽  
Vol 2 (2) ◽  
pp. 116 ◽  
Author(s):  
P. O. Kisinyo ◽  
C. O. Othieno ◽  
S. O. Gudu ◽  
J. R. Okalebo ◽  
P. A. Opala ◽  
...  
Keyword(s):  
Acid Soils ◽  
Base Cations ◽  
Exchange Capacity ◽  
Available P ◽  
Available Phosphorus ◽  
Phosphorus Sorption ◽  
The West ◽  
Soil P ◽  
P Sorption ◽  
East And West

<p>In Kenya, maize (<em>Zea mays</em> L.) is mainly grown on acid soils in high rainfall areas. These soils are known for low available phosphorus (P), partly due to its sorption by aluminium (Al) and iron oxides. The study determined soil P sorption, lime requirements and the effects of lime on soil pH, Al levels and available P on the main maize growing acids soils in the highlands east and west of Rift Valley (RV), Kenya. Burnt lime containing 21% calcium oxide was used. The soils were strongly to extremely acid (pH 4.85-4.07), had high exchangeable Al<sup>3+</sup> (&gt; 2 cmol Al kg<sup>-1</sup>) and Al saturation (&gt; 20% Al), which most maize germplasm grown in Kenya are sensitive to. The base cations, cation exchange capacity and available P (&lt; 10 mg P kg<sup>-1</sup> bicarbonate extractable P) were low, except at one site in the highlands east of RV indicative with history of high fertilizer applications. Highlands east of RV soils had higher P sorption (343-402 mg P kg<sup>-1</sup>) than the west (107-258 mg P kg<sup>-1</sup>), probably because of their high Al<sup>3+ </sup>ions<sup> </sup>and also the energies of bonding between the soil colloids and phosphate ions. Highlands east of RV also had higher lime requirements (11.4-21.9 tons lime ha<sup>-1</sup>) than the west (5.3-9.8 tons lime ha<sup>-1</sup>). Due to differences in soil acidity, Al levels and P sorption capacities within and between highlands east and west of RV, blanket P fertilizer and lime recommendations may not serve all soils equally well.</p>

Sign in / Sign up

Export Citation Format

Share Document