Abstract

A field experiment was conducted during two consecutive kharif seasons of 2010 and 2011 at the Instructional Farm, Rajasthan College of Agriculture, Udaipur. The soil of the experimental field was clay loam in texture with medium in available nitrogen (268.40 and 270.80 kg/ha) and phosphorus (19.80 and 19.70 kg/ha) and high in available potassium (288.52 and 290.50 kg/ha) and alkaline in reaction with pH 7.85 and 8.01 during 2010 and 2011, respectively. The experiment consisting of 18 treatment combinations and replicated four times was set out in split plot design with three tillage practices (conventional, reduced and minimum tillage) as main plots and six nitrogen management treatments (control, 100% through urea, 50% through chemical fertilizer+50% through VC, 50% through chemical fertilizer+50% through FYM, 25% through chemical fertilizer+75% through VC and 25% through chemical fertilizer+75% through FYM as sub-plot treatments. Sorghum variety CSV-23 was taken as test crop during both the years. Maximum content and uptake of nitrogen in grain and fodder were also observed through 100% chemical source.