Effect of concentrated organic manure, nitrogen and sulphur on the productivity and economics of sugarcane (Saccharum officinarum)

An experiment was conducted during the spring season of 1995-96 and 1996-97 on sandy-loam soil of Pusa, to study the effects of different levels of concentrated organic manure, nitrogen and sulphur on growth, yield and economics of sugarcane ( Saccharum, officinarum L.). Concentrated organic manure and IN fertilization significantly influenced growth parameters and yield attributes, and crop responded up to 20 q organic manure, 150 kg N/ha, respectively, for cane yield and net profit. Integration of concentrated organic manure + N further induced significant increase in cane yield and net profit over their individual application. Concentrated organic manure 20 q with 150 kg N/ha resulted in significantly higher cane yield and net profit over 200 kg N/ha alone. Sulphur fertilization did not cause significant variation in cane yield, though there was improvement in sucrose (%) in juice, but it was reduced by increase in N levels.