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A field experiment was conducted during Kharif 2010-11 at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad to study the response of secondary treated distillery spentwash on physiological and quality parameters of Bt cotton under rainfed condition. Result indicated that application of 1.5 N through distillery spentwash significantly increased the total dry matter production (339.7 g plant-1 ), leaf area (51.3 dm2 plant-1 ), LAI (0.95), good opened bolls plant-1 (31.2) and yield (2566.1 kg ha-1 ), but was on par with 1 N through spentwash. Significantly lower micronaire value was recorded with the application of 0.25 N through spentwash + 0.75 N through fertilizers and RPP, but was on par with 1 N through spentwash. However other quality parameters did not differ significantly. Similarly, significantly higher CGR, RGR and NAR were recorded where nutrients were supplied through spentwash as compared to chemical fertilizer treatments. | Effect of secondary treated distillery spentwash on physiological and quality parameters of Bt Cotton-II
