Trace Metals in Agriculture

Trace elements in agroecosystems and impacts on the environment

“…The dominant minerals of each trace metal may vary among different soils. Cu containing minerals in soil include malachite (Cu 2 (OH) 2 …”

“…Trace elements that have been extensively studied in the last decade include copper (Cu), zinc (Zn), iron (Fe), manganese (Mn), molybdenum (Mo), boron (B), cobalt (Co), nickel (Ni), lead (Pb), cadmium (Cd), chromium (Cr), arsenic (As), and selenium (Se). Cu, Zn, Fe, Mn, Mo, and B are essential to the normal growth of plants, Cu, Zn, Fe, Mn, Mo, Co and Se are essential to the growth and health of animals and human beings, and Cu, Zn, Pb and Cd are the most environmentally concerning elements that have been often reported to cause contamination of soil, water, and food chains [2]. Some plants can tolerate and accumulate much higher concentrations of trace elements such as Cu, As, and Cd than regular plants [3][4][5].…”

Comparison of Extraction Procedures for Assessing Soil Metal Bioavailability of to Wheat Grains

“…Many factors such as use of metal-enriched materials including chemical fertilizers, farm wastes, sewage sledges, and wastewater, mining or industrial activities, and automotive emission can contribute to cause to this contamination. In agricultural production systems, soil contamination of heavy metals can result in input and accumulation these elements through repeated use of metal-enriched chemicals such as fungicides, farm wastes, chemical fertilizers, and biosolids [1]. Fungicides and pesticides containing Cu, Zn, and As have been widely used to protect citrus, apples, peaches, strawberries, and other fruit crops [2].…”

Anatomic and Physiological Disorder After Intoxication with Heavy Metals in Tobacco (Nicotiana Tabacum L.)

“…Combination of high concentrations of heavy metals in some microelements presents complex problem in agroeconomical practice (14). Heavy metals (Cu, Cd, Cr, Hg, Pb and Zn) have strong negative effects on the soil capacity and can inhibit mineralization of soil and synthesis of organic acids essential for plants.…”