Ecology, Environment and Conservation Paper

Vol 24, Issue 2 2018; Page No.(849-855)

EFFECT OF SEWAGE WATER IRRIGATION ON SOIL PROPERTIES: A CASE STUDY OF PARAKKAI LAKE IN TAMIL NADU, INDIA

S. SahayaVasanthi and S. Adish Kumar

Abstract

Use of sewage water for irrigation improved chemical properties and fertility status in soil. Sewage water contains elements essential for plant growth and also contains heavy metals which may be toxic for animals if their concentration exceeds than permissible limit. It was therefore of interest to conduct study to estimate levels of contaminations present in water and soil of suchindram (Parakkailake)pond area. Water and Soil samples were analyzed for physico-chemical parameters such as pH, hardness and electrical conductivity,major nutrients. Water samples were collected at random from the water bodies of suchindram pond.About 6 samples of water and 9 soil samples were collected at adequate places. Major nutrient for which these samples were analyzed were nitrogen (K), Phosphorous (P), Potassium (K). pH of all water samples was recorded below the normal range while hardness and electrical conductivity of all water samples were recorded above the normal range set by WHO. Soil samples were collected by grid sampling method and the concentration of heavy metals was recorded in the permissible limits set by WHO.

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