A comparison of wet oxidation methods for determination of total phosphorus in soils

Gasparatos, Dionisios; Haidouti, C.

doi:10.1002/1522-2624(200108)164:4<435::aid-jpln435>3.0.co;2-5

Cited by 50 publications

(24 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The total Fe, and Mn contents of the soil nodules were determined according to the aqua regia extraction (Gasparatos and Haidouti 2001). Simplicity and adaptability, as a routine procedure, have led to the widespread use of the aqua regia for the determination of total amounts of heavy metals in environmental and pedological studies.…”

Section: Methodsmentioning

confidence: 99%

Microscopic structure of soil Fe-Mn nodules: environmental implication

et al. 2004

View full text Add to dashboard Cite

The internal structure, iron and manganese distributions of Fe-Mn nodules from imperfectly drained soils of central Greece were studied by scanning electron microscopy (SEM) and elemental analysis. Nodules exhibited a differentiated structure with discontinuous concentric rings as expression of their redox history. Fe and Mn have shown distinct repartition and were distributed mainly in concentric bands. The microstructure and the arrangement of iron-manganese compounds reflect the periodical development and the relative slow accretion rates of the studied nodules. These properties provide ample opportunity for adsorption and isolation of heavy metals from the soil system.

show abstract

Section: Methodsmentioning

confidence: 99%

Microscopic structure of soil Fe-Mn nodules: environmental implication

et al. 2004

View full text Add to dashboard Cite

show abstract

“…Nitrogen was analysed using the Kjeldahl method, whereas P was evaluated colorimetrically using the H 2 SO 4 /H 2 O 2 digestion method (Gasparatos and Haidouti, 2001). Potassium and Na were measured using flame emission spectroscopy and Ca, Mg, Fe, Mn, Cu and Zn were measured using atomic absorption spectrophotometry (Varian SpectrAA 300).…”

Section: Soil and Leaf Analysismentioning

confidence: 99%

Comparative effects of organic and conventional apple orchard management on soil chemical properties and plant mineral content under Mediterranean climate conditions

Gasparatos

Roussos

Christofilopoulou

et al. 2011

J. Soil Sci. Plant Nutr.

View full text Add to dashboard Cite

The effects of conventional and organic management systems on soil chemical properties and leaf nutrients under Mediterranean conditions were studied over a 2-year period on adjacent commercial apple orchards in Southern Greece. The soil in both orchards was characterised as a clay loam-clay and was uniform in morphological and physical properties. The results indicated no significant differences in soil chemical properties between the different management systems, including soil organic matter (SOM), pH, cation exchange capacity (CEC) and C/N ratio. However, soil samples from the conventional orchard exhibited significantly higher values (p< 0.01) of electrical conductivity (EC) and higher concentrations of K, Ca, Na, Cu and Zn, which were likely the result of chemical fertiliser application. Despite the fact that organic systems promote the accumulation of soil organic matter and fertility over time through the use of organic sources, in our study, the SOM values declined, suggesting that the type and the rate of organic matter input in the organic orchard were insufficient. The leaf nutrients, with the exception of P and Ca, were within the sufficiency range in both management systems. The present findings did not provide evidence of major differences in the leaf macronutrient content between conventionally and organically grown apple trees. Nevertheless, our leaf analysis revealed higher concentrations of Zn in the conventionally grown trees and opposite results for Cu, probably due to the extensive use of copper-containing fungicides in organic orchards in Greece.

show abstract

“…The total heavy metal content was estimated by refluxing 1 g of soil in 15 ml hot aqua regia for 16 hours (Gasparatos and Haidouti, 2001). The available metal contents were determined by extraction of the soils with 0.005M DTPA (pH=7.3).…”

Section: Methodsmentioning

confidence: 99%

Total and bioavailable forms of Cu, Zn, Pb and Cr in agricultural soils: a study from the hydrological basin of Keritis, Chania, Greece

2013

Global NEST Journal

View full text Add to dashboard Cite

The hydrological basin of Keritis in Chania, Greece is mainly an agricultural area where various agrochemicals are used. In topsoils, the total and available forms of Cu, Zn, Pb and Cr were determined after their extraction with boiling Aqua Regia and DTPA respectively. Although the total heavy metal concentrations in Keritis soils were similar to the total concentrations in other agricultural areas, the studied soils can not be described as heavily polluted. The bioavailable concentrations of Cu, Zn, Pb and Cr were low. The relative availability and comparative mobility followed the order of Cu>Pb>Zn>Cr and was closely related to the soil organic matter.

show abstract

A comparison of wet oxidation methods for determination of total phosphorus in soils

Cited by 50 publications

References 0 publications

Microscopic structure of soil Fe-Mn nodules: environmental implication

Microscopic structure of soil Fe-Mn nodules: environmental implication

Comparative effects of organic and conventional apple orchard management on soil chemical properties and plant mineral content under Mediterranean climate conditions

Total and bioavailable forms of Cu, Zn, Pb and Cr in agricultural soils: a study from the hydrological basin of Keritis, Chania, Greece

Contact Info

Product

Resources

About