“Growth, productivity, physical and economic optima and yield gaps estimation in wheat (Triticum aestivum L.) through site specific nutrient management approaches under inner-Terai region of Chitwan, Nepal”, J. Agric. Nat. Res., vol. 4, no. 1, pp. 191–202, Jan. 2021, doi: 10.3126/janr.v4i1.33271.