Journal ArticleDOI
The effect of pH on the total and free ionic concentrations of mnganese, zinc and cobalt in soil solutions
Reads0
Chats0
TLDR
In this paper, the pH adjustment of five soils whose pH in the field had been adjusted to between 5.0 and 7.5 were incubated with water or 0.01 m CaCl2 at 90% field capacity, and additional samples of the most acid soil were limed to various pH values immediately before incubation.Abstract:
Summary
Samples of five soils whose pH in the field had been adjusted to between 5.0 and 7.5 were incubated with water or 0.01 m CaCl2 at 90% field capacity. Additional samples of the most acid soil were limed to various pH values immediately before incubation.
Manganese, zinc and cobalt concentrations in the soil solutions, collected by displacement, decreased as the pH increased; the concentrations in calcium chloride solutions were higher than those in water solutions. The free divalent ions Mn2+, Zn2+ and Co2+ were the major metal species in solution at pH 5 but the proportion of the metals present as the free ion decreased as the pH increased.
Differences in the manganese and zinc concentrations in the solutions were due not only to the pH of these solutions but also to the original pH of the soil in the field.read more
Citations
More filters
Book
Heavy metals in soils : trace metals and metalloids in soils and their bioavailability
TL;DR: In this article, the authors defined the sources of heavy metals and metalloids in Soils and derived methods for the determination of Heavy Metals and Metalloids in soil.
Journal ArticleDOI
Contrasting effects of manure and compost on soil pH, heavy metal availability and growth of Chenopodium album L. in a soil contaminated by pyritic mine waste
TL;DR: For metal sulphides-contaminated soil, liable to acidification, manure application appears to be able to enhance the initial stages of re-vegetation, by species such as C. album.
Journal ArticleDOI
A Review of the Different Methods Applied in Environmental Geochemistry For Single and Sequential Extraction of Trace Elements in Soils and Related Materials
TL;DR: A comprehensive review of the single and sequential extraction schemes for metal fractionation in environmental samples such as soil and industrially contaminated soils, sewage sludge and sludge amended soils, road dust and run off, waste and miscellaneous materials along with other approaches of sequential extraction methods are presented in this paper.
Journal ArticleDOI
Partitioning of metals (Cd, Co, Cu, Ni, Pb, Zn) in soils: concepts, methodologies, prediction and applications ― a review
TL;DR: A review of analytical methods and models for measuring or predicting the solid-liquid partitioning of metals in aerobic soils, and collates experimental data can be found in this article, where the authors present an empirical distribution coefficient, which gives the ratio of the concentration in the solid phase to that in the solution phase.
Journal ArticleDOI
Single extraction schemes for soil analysis and related applications
TL;DR: In this article, different kinds of elemental soil analysis, for the determination of 'total', 'pseudo-total' and 'extractable' soil contents and their different purposes are reviewed.
References
More filters
Journal ArticleDOI
Development of a DTPA soil test for zinc, iron, manganese and copper
Willard L. Lindsay,W. A. Norvell +1 more
TL;DR: A DTPA soil test was developed to identify near-neutral and calcareous soils with insufficient available Zn, Fe, Mn, or Cu for maximum yields of crops.
Journal ArticleDOI
Individual Activity Coefficients of Ions in Aqueous Solutions
TL;DR: A revised and extended table of ionic activity coefficients, which has largely been computed by independent means, taking into consideration the diameter of the hydrated ions,* as estimated by various methods, is presented in this article.
Journal ArticleDOI
Micronutrient Cation Complexing in Soil Solution: II. Complexing of Zinc and Copper in Displaced Solution from Calcareous Soils
TL;DR: In this paper, the concentration and degree of complexing of Zn and Cu were measured in the soil solution of 20 calcareous soils from Colorado, and the results showed that Zn levels in solution were generally less than 2 ppb with rarely more than 75% of the Zn being complexed.
Journal ArticleDOI
The use of ion exchangers for the determination of physical-chemical properties of substances, particularly radiotracers, in solution; theoretical.
Journal ArticleDOI
Transition metal bonding in humic acid: an ESR study
TL;DR: In this paper, the mechanisms of bonding of Mn2+, Cu2+, and VO2+ in humic acid extracted from a mineral soil were investigated by electron spin resonance spectroscopy.