Volume No. 3 Issue No.: 3 Page No.: 879-889 Jan-Mar 2009

 

EFFECT OF TREATED PAPERBOARD MILL EFFLUENT IRRIGATION ON SOIL HEALTH AND YIELD OF VEGETABLE CROPS

 

C. Udayasoorian* and S. Ponmani1

Department of Environmental Science,Tamil Nadu Agricultural University Coimbatore Tamil Nadu (INDIA)

 

Received on : October 21, 2008

 

ABSTRACT

 

An attempt has been made to use the treated paperboard mill effluent and well water with the combination of solid wastes viz., Biomanure (BM), Vermicompost (VC), Farmyard manure (FYM) and Fly ash (FA) for cultivating vegetable crops viz., chillies and brinjal and also to study their impact on soil and crop quality. Application of FA, BM and VC along with effluent irrigation had increased the soil organic carbon, available nutrients (N, P, K) and exchangeable cations (Ca, Mg, K and Na). The soil microbial population and enzyme activities viz., urease, phosphatase and dehydrogenase were higher under effluent irrigation, leads to increased soil health and crop growth. The treatment combination of biomanure @ 5 t ha-1 + vermicompost @ 3.5 t ha-1 + fly ash @ 5 t ha-1 + 100 % NPK performed better than rest of the treatments in both the crops. The plant height and number of branches was high in effluent irrigated plot along with solid waste application (BM + VC + FA). The experimental results revealed that yield of chillies and brinjal under treated effluent irrigation was higher than well water irrigation. The yield increased was recorded 20.90 per cent in chillies and 17.28 per cent in brinjal over control (100 % NPK alone).

 

Keywords : Treated paperboard Mill effluent, Solid wastes, Chillies, Brinjal, Soil health

 

 

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