TY - BOOK AU - Kushwaha, Satyabhan AU - Guide: Sawarkar, S.D. TI - Effect of Long Term Application of Fertilizers and Manure on Nitrogen Fractions in a Vertisol U1 - 631.4 PY - 2012/// CY - Jabalpur PB - Department of Soil Science & Agriculture Chemistry KW - Soil Science & Agriculture Chemistry ER -