Effect of treated tannery effluent and domestic waste water irrigation on Tagetes erecta

Abstract

Tanning industry is generating enormous quantities of effluent every day. The scientific\rways and means of utilizing this liquid waste is of utmost important in reducing pollution load to the\renvironment. Present study has been carried out to apply treated tannery effluent (TTE) diluted with\rdomestic waste water (DWW) as irrigation sources at different concentration of 25 per cent, 50 per\rcent, 75 per cent and 100 per cent on a non food crop Tagetes erecta. Results reveal that application\rof diluted mixture of TTE along with DWW can be used efficiently for crop production. Germination\rpercentage of 73.13 per cent was recorded with 25 per cent of TTE and 75 per cent of DWW dilution\ras compared with 71.17 per cent in control. Different growth parameters showed variation with different\rlevel of diluted tannery waste water application. Highest root and shoot length was observed in\rcontrol (11.08 cm and 10.70 cm) followed by 25 per cent effluent irrigation (11.22 cm and 10.47 cm).\rDifferent concentrations of tannery effluent were found to influence the vigour index significantly.\rThe highest vigour index was observed at control (1601.1) followed by 25 per cent effluent concentration\r(1585.59). The lowest vigour index was observed in case of treatment receiving 100 per cent effluent\rconcentration (173.48). Red soil with different concentration of treated tannery effluent with domestic\rwaste water recorded good results as compared to the black cotton soil.