Long-term use of sewage sludge and sewage water in agriculture - Bhat, Mohammad Auyoub
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Application of sewage to the agricultural land as a source of irrigation water, plant nutrients and organic matter can lead to improved growth and yield of crop plants. Due to presence of toxic heavy metals within its composition, a cautious approach to its use in raising crops would be prudent. It is important to stress that total heavy metal content in sludge and sewage water treated soils does not necessarily reflect bioavailability or toxicity because speciation of metals could favour the presence of insoluble forms that are not absorbed by the plants, thus excluding toxicity risk to the…mehr

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Produktbeschreibung
Application of sewage to the agricultural land as a source of irrigation water, plant nutrients and organic matter can lead to improved growth and yield of crop plants. Due to presence of toxic heavy metals within its composition, a cautious approach to its use in raising crops would be prudent. It is important to stress that total heavy metal content in sludge and sewage water treated soils does not necessarily reflect bioavailability or toxicity because speciation of metals could favour the presence of insoluble forms that are not absorbed by the plants, thus excluding toxicity risk to the biota. Every government in the world should formulate regulatory guidelines based on scientific evidences for maximum allowable soil metal concentrations to provide a safety factor in the land application of sewage.
Autorenporträt
Dr. M. A. Bhat obtained his B.Sc. (Agriculture) from SKUAST in 1999, M.Sc. (Soil Science, Gold Medalist) from NDUAT in 2001 and Ph.D. from BHU in 2006. Presently, he is working as Assistant Professor in the Division of Soil Science at SKUAST of Kashmir. Dr. Bhat has published several research papers in national and international journals.