and A.K. Patra, T.R.R.S.D.B. 2013. Effect of Sewage Sludge and Inorganic Fertilizers on Productivity and Micronutrients Accumulation by Palak (Beta vulgaris) and their Availability in a Typic Haplustept. Journal of the Indian Society of Soil Science. 61, 3 (Dec. 2013).