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Massive phosphorus accumulation in soils: Kerala’s continuing conundrum

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Title Massive phosphorus accumulation in soils: Kerala’s continuing conundrum
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Creator R. DINESH, V. SRINIVASAN, S. HAMZA, M. ANANDARAJ
 
Subject Spices, Kerala, Soils, Phosphorus, toxicity
 
Description Not Available
A recent study by the Kerala State Planning Board1 involving a comprehensive analysis of soils from all the Panchayats across all districts of the state shows acidity at a whopping 91% of the samples tested, with 54% of the samples testing for strong to extremely acid reaction (pH < 5.5). Thus P availability should have been seriously hampered in these soils, making it unavailable to crops. We now have a situation with 61% of the
samples registering high (25–35 kg/ha) to extremely high (100 kg/ha) available P levels. The repeated application of manures based on N requirement could have caused P to accumulate in the soil. A practical
approach would be to skip application of high analysis or complex fertilizers containing P in such soils. Also, periodical soil testing from recognized laboratories and soil test-based nutrient management are
imperative to deal with the possible fallouts from excessive P accumulation in the soils of Kerala.
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Date 2021-08-07T18:11:17Z
2021-08-07T18:11:17Z
2014-02-10
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/53630
 
Language English
 
Relation Not Available;