PROPERTIES OF TANK SILTS OF SRIVAIKUNTUM BLOCK IN THOOTHUKUDI DISTRICT OF TAMIL NADU
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Authors
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M. PARAMASIVAN* and N. SENTHIL KUMAR
ICAR – KVK, Tamil Nadu Agricultural University, Virinjipuram – 632 104
Keywords:
Tank silt, non system, system physico-chemical properties, fertility, macro and micronutrientsAbstract
Tank silt samples (0-30 cm) fifteen each from the tanks of non system and system in Srivaikuntum
block of Thoothukudi district were collected to assess the physico-chemical properties and fertility
status of. Majority of the samples showed neutral to slightly saline in reaction non saline in both non
system and system tanks. Organic carbon content was found to be higher in tank silts of system
tanks as compared to non system tanks. Both silts were high in available nitrogen, phosphorus and
potassium. How ever, the clay, silt, water holding capacity and the macro nutrients were also high in
tank silts of system. Available micronutrients in all the tank silt samples of non system and system
were found adequate. The macro and micronutrients were found to be significantly and positively
correlated with pH, EC and organic carbon.
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