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During 2009 Rabi season flood of river Krishna, the cultivated area of 128 Km2 was flooded in the northern part of Karnataka catchment. The flood entirely killed the vegetations stands on the fields. After wards, the effects of the flood on the ecological properties of the soils and the conditions of agricultural production had been evaluated. A study was conducted to estimate the flood effects on heavy metals concentrations and on the nutrient status of the soils. The sediment layer left from the flood had a thickness of several mm. Boron, Molybdenum within this layer were in between proscribed values and the metal ions concentrations of Iron, Zinc , Copper, were found slightly above the prescribed limits. Thus no restriction had to be announced for food production purposes. Regarding the Major and Secondary nutrients status of the flooded soils, only the mineral Nitrogen content was substantially reduced when compared to not flooded soils. This effect could most probably be related to denitrification processes as a result of anaerobic conditions during the flood. Available Potash (K2O) and Phosphorus (P2O5) found more than the prescribed limits.
Dr. B.M.Kalshetty. 2012. \u201cRiver Krishna Flood Effects on Soil Properties of Cultivated Areas in Bagalkot District, Karnataka State\u201d. Global Journal of Science Frontier Research - B: Chemistry GJSFR-B Volume 12 (GJSFR Volume 12 Issue B6): .
Crossref Journal DOI 10.17406/GJSFR
Print ISSN 0975-5896
e-ISSN 2249-4626
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Total Score: 114
Country: India
Subject: Global Journal of Science Frontier Research - B: Chemistry
Authors: Dr. B.M.Kalshetty, Dr. T.P.Giraddi, R.C.Sheth, M.B.Kalashetti (PhD/Dr. count: 2)
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Publish Date: 2012 11, Thu
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During 2009 Rabi season flood of river Krishna, the cultivated area of 128 Km2 was flooded in the northern part of Karnataka catchment. The flood entirely killed the vegetations stands on the fields. After wards, the effects of the flood on the ecological properties of the soils and the conditions of agricultural production had been evaluated. A study was conducted to estimate the flood effects on heavy metals concentrations and on the nutrient status of the soils. The sediment layer left from the flood had a thickness of several mm. Boron, Molybdenum within this layer were in between proscribed values and the metal ions concentrations of Iron, Zinc , Copper, were found slightly above the prescribed limits. Thus no restriction had to be announced for food production purposes. Regarding the Major and Secondary nutrients status of the flooded soils, only the mineral Nitrogen content was substantially reduced when compared to not flooded soils. This effect could most probably be related to denitrification processes as a result of anaerobic conditions during the flood. Available Potash (K2O) and Phosphorus (P2O5) found more than the prescribed limits.
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