Volume : 4, Issue : 4, April - 2015

Low-cost agricultural practices to reduce heavy metal

Renu Yadav, Archana Yadav

Abstract :

<p> Agriculture soil may become contaminated by the accumulation of heavy metals through emissions from the rapidly </p> <div>expanding industrial areas, mine tailings, disposal of high metal wastes, leaded gasoline, paints and land application </div> <div>of fertilizers. Gradually increasing pollution of agricultural land, leads to accumulation of toxic products. The adequate </div> <div>protection and restoration of soil ecosystems contaminated by heavy metals require their characterization and remediation .The application of </div> <div>soil amendments is another very effective measure to reduce the concentration of heavy metals in crops. Both organic (e.g., farmyard manure) </div> <div>and inorganic amendments (e.g., lime, zeolites, and iron oxides) were found to decrease the metal accumulation. Further effective methods to </div> <div>reduce metal transfer into food chain include crop rotation and cultivation of industrial or bio–energy crops.</div>