Effect of different levels of sewage sludge (citywaste) and inorganic fertilizers on the yield attribute and quality of mustard (Brassica juncea L.)

Abstract

The influence of sewage-sludge and inorganic fertilizers (NPK) on growth, yield and quality of mustard was assessed from a field experiment on loamy soil in Rabi season of 2010-11. The levels of sewage sludge and inorganic fertilizers (NPK). The plant height (cm), seed yield (q ha-1) and content of oil and protein were significantly increased by the application of both sewage-sludge and inorganic fertilizer. The maximum growth and yield was obtained by the sewage-sludge application @12 t ha-1 and by the 75 per cent inorganic fertilizer. The interaction between sewage-sludge and inorganic fertilizer was found significant and the maximum increase in the growth, yield, oil (%) and protein (%) was obtained by applied sewage-sludge @ 12 t ha-1 and 75 per cent NPK. Four level of sewage-sludge (@ 0, 4, 8 and 12 t ha-1) through city waste and four level of inorganic fertilizers (@ 0, 50, 75 and 100 per cent of recommended dose were evaluated.