Poultry litter contains many trace elements such as As, Cu, and Zn, and its land application may lead to the accumulation of these elements in soils, especially near the soil surface. The objectives of this study were to determine the total amount of trace elements and evaluate the effect of litter granulation and various litter to water extraction ratios on water extractable trace elements in ...

Contributions in the field of soil chemistry have immensely benefited humankind, including enhanced agricultural production and the quality of our environment. This review focuses on research breakthroughs since the mid-1970s and delineates frontiers in soil chemistry for the upcoming decade. However, early contributions in ion exchange, sorption phenomena, and soil acidity are highlighted. Beg...

Trace elements occur in the human and animal body in milligrams per kilograms amount or less as against major elements which occur in gram per kg.essential elements are elements required for lifewhose deficient intake results in impairment of vital functions and only intake of physiologic amounts of the element can alleviate or prevent such a disturbance in function. Certain T.Es exists in the ...

With the aid of more sensitive instrumental methods it is possible to determine trace elements after separation of different fractions from soil and plant samples. Fractions of soils and sediments are obtained by extraction with different reagents, chosen in function of biological, ecological or chemical considerations. In plant samples it is possible to separate free ions and organo-mineral co...

an ex-situ experiment to assess the metal extractive potential of fourteen agriculture plants (vigna unguiculata, gossypium hirsutum, jatropha curcas, etc.) was conducted on magnesite mines which had above permissible levels of cadmium and lead. there was no much difference in the total chlorophyll a and b, carbohydrate and protein contents in the plants grown in the mining soil and adjacent co...

A collection of 235 samples were taken from 115 sites (representing a density of 1 sampling site ca. 130 km) on rural soils derived from the major rock types in the southern Iberian Massif. The geochemical baselines of selected trace elements (As, Co, Cr, Cu, Ni, Pb and Zn) were determined on the b2 mm soil fraction. The sampling sites were not directly influenced by external pollution. Soil ge...

This study assesses the biochemical degradability of biochars produced from five contrasting crop residues (rice husk, olive pit, almond shell, maize straw and wood chips) in acidic soils contaminated with trace elements. For this purpose, highly moderately acid were amended each proposed subjected to a microbial degradation experiment under controlled conditions for 155 days. CO2 production pu...

Trace metal analysis of archaeological soils has grown in popularity recent decades, as an additional means measuring human impact on and off sites. Nonetheless there been a tendency to ascribe such elements too easily ancient metallurgy, whereas pollution research studies have identified many other causes heightened trace metals anthropogenic deposits. This article reviews the published histor...

During recent years there has been developing among geochemists ancl among students of physiology and medi cine, an increasing interest in trace elements and the roles they play in biological systems. In a recent National Academy of Science publication on "Geochem istry and the Environment", several distinguished scholars addressed themselves to the "Relation of Selected Trace Elements to Healt...