Evaluation of soil properties and wheat (Triticumaestivum L.) productivity influenced by nitrogen levels and sowing dates under zero tillage condition in Chitwan, Nepal [printed text] / Mahato, R.B, Author; Pande, K.R, Author; Regmi, A.P., Author. - [s.d.]. - 53-61 p. in Monograph : printed text Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Karki, Krishna B.