Effect of long term application of fertilizer and manure under rice-wheat system [printed text] / Kharel, T.P, Author; Regmi, A.P., Author; Shrestha, L L, Author; Tripathi, J., Author. - [s.d.]. - 182-189 p. in Monograph : printed text Proceedings of wheat research papers presented at 25th National Winter Crops Research Workshop held at NARC, Khumaltar, September 11-12, 2002