A field experiment was carried out in sub-tropical climate of Bhimdattanagar, Kanchanpur to assess the effect of site specific nutrient management approach in productivity of spring rice. The experiment was carried in single factor randomized completely block design with four replication, in four different farmer’s field, each farmers’ field as single replication. The seedlings were grown in the mat nursery bed and transplanted in the experimental plots with different nutrient management practices. Nutrient management practices were Site Specific Nutrient Management with Nutrient Expert dose (SSNMNE)(109:28:38 kg NPK/ha), Government recommendation dose (100:30:30kg NPK/ha +6 ton FYM), Farmer’s field practice (FFP)(different among farmers) with three omission plots viz. omission of Nitrogen (0:28:38 kg NPK/ha), Omission of Phosphorus (109:0:38 kg NPK/ha) and Omission of Potassium (109:28:0 kg NPK/ha). SSNM-NE dose was obtained by household survey in the respective area and using nutrient expert model. The growth parameters, yield, yield attributing traits and total cost of production were recorded. Data were analyzed using Duncan’s Multiple Range Test (DMRT) in Genstat. Result indicates that the highest grain yield (5.81 t/ha) was obtained from SSNM-NE which was statistically at par with government recommendation (5.54 t/ha). Similarly, thousand grains weight, straw yield in the experiment 23.20g, 6.90t/ha were significantly higher in SSNM-NE respectively. Straw yield, grain yield and thousand grain weight of SSNM-NE were found to be statistically at par with government recommendation. The economic analysis revealed that higher B: C ratio (1.91), net return and gross return were higher in SSNM-NE.
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 GON. “Rice varietal mapping in nepal: Implication for development and adoption. Government of Nepal: Ministry of Agriculture development, Depatment pf Agriculture, Crop development directiorate, 7, 2015.
 B. Basnet, “Envirinmental Friendly Technologies for Increasing Rice Productivity”, The Journal of Agriculture and Environment., Vol. 9, Pp. 34-40, 2008.
 A.P. Regmi, “Improving the productivity of rice-wheat system through field specific nutrient management in Nepal. Los Banos, Laguna, Phillippines”, PhD dissertation submitted to University of Philippines at Los Banos (UPLB), 2003.
 M. Thapa, “Factors affecting fertilizer use efficiency in dry season paddy production in Makawanpur”, Agronomy Journal of Nepal, (Agron JN), Vol. 1, Pp. 123-133, 2010.
 C. Adhikari, K.F. Bronson, G.M. Panuallah, A.P. Regmi, P.K. Saha, A. Dobermann, and E. Pasuquin, “On farm soil N supply and N nutrition in rice wheat system of Nepal and Bangladesh”, Field crops Research, Vol. 60, Pp. 272-286, 1999.
 C. Witt, A. Dobermann, S. Abdulrachman, H.C. Gines, G.H. Wang, R. Nagarajun, D.C. Olk, “Internal nutrient efficiencies in irrigated lowland rice of tropical and subtropical Asia”, Field Crops Research, Vol. 63, Pp. 113-138, 1999.
 B. Singh, A. Pant, A. Bahtnagar, M. Bhatt, “Evaluation of Nutrient Expert Based Fertilizer Recommendation for Growth, Yield and Nutrient Uptake of Maize Hybrids and Soil Properties in Maize-Wheat Cropping System in Mollisol”, International Journal of Current Microbiology and Applied Sciences., Pp. 3539-3550, 2017.
 S. Marahatta, “Increasing Productivity of an Intensive Rice Based System through Site Specific Nutrient Management in western terai of Nepal”, The Journal of Agriculture and Environment, 2017.
 A. Dobermann, P.F. White, “Strategies for nutrient management in irrigated and rainfed lowland rice”, Nutrient. cyl. Agroeco Syst., Vol. 53, Pp. 1-18, 1999.
 V. Pooniya, S.L., Jat, A. Choudhary, A.K., Singh, C. Parihar, R. Ban, K.S. Rana, “Nutrient Expert assisted site-specific-nutrient-management: An alternative precision fertilization technology for maize-wheat cropping system in South-Asian Indo-Gangetic Plains” ICAR-Indian Agricultural Research Institute, Vol. 85(8), Pp. 996–1002, 2015.
 D. Lawlor, G. Cornic, “Photosynthetic carbon assimilation and associated metabolism in relation to water deficits in higher plants”, Plant Cell Environment, 2002.
 S.S. Meena, “Effect of hybrid rice to nitrogen and potassium application in sandy clay loam soil”, Indian Journal of Agricultural science, Pp. 8-11, 2003.
 A. Tanaka, C. Garcia, “Studies of the relationship between tillering and nitrogen uptake of the rice plant. Soil Science and Plant Nutrition, 11, 3, 31-37, 1965.
 B. Singh, V. Singh, “Fertilizer Management in Rice”, Springer International Publishing AG, 2017.
 M. Budhar, S. Palaniappan, “Effect of integration of fertilizer and green manure nitrogen on yield attributes, nitrogen uptake and yield of lowland rice (Oryza sativa L.)”, Journal of Agronomy and Crop Science, Vol. 176, pp. 183–187, 1996.
 K. Sahu, E. Kariali, P. Mohapatra, “Tiller dominance in rice is dependent on assimilate concentration of the panicle”, Indian Journal of Plant Physiology, Vol (9), Pp. 402–406, 2004.
 W. Zhou, L. Tengfei, Z. Yang, T. Wang, F. Yong, Y. Chen, R. Wanjun, Morphophysiological mechanism of rice yield increase in response to optimized nitrogen management. Nature, 2017.
 S. Krishnakumar, S. Haefele, “Integrated nutrient management and LCC based nitrogen management on soil fertility and yield of rice”, Scientific Research and Essays, Vol. 8(41), Pp. 2059-2067, 2013.
 T.M. Walker, “Hibrid rice response nitrogen fertilization for Midsouthern United states rice production”, Agronomy Journal, Vol. 100, Pp. 381-386, 2008.
 N. Fageria., “Yield Physiology of rice”, Journal of plant nutrition, Vol. 30(6), Pp. 843-879, 2010.
 T. Satyanarayana, K. Majumdar, M. Pampolino, “A tool to optimize nutrient use and improve productivity of maize”, Better Crops., Vol. 97(1), Pp. 21– 24, 2012.
 A.S. Bali, “Response of rice (oryza sativa L) genotypes to nitrogen level under Transplanted condition in kasmir valley”, Indian Journal of Agronomy, Vol. 40(1), Pp. 59-69, 1995.
 S. Mehta, B. Seema, V. Kumar, “Performance of winter maize (Zea mays) hybrid to planting methods and nitrogen levels”, Indian Journal of Agricultural Sciences, Vol. 81(1), Pp. 50-54, 2011.
 S.A. Dalling, “The physiological basis of Nitrogen redistribution during filling in cereals”, American society of plant physiologists, Pp. 55-71, 1985.
 C. Witt, A. Dobermann, S. Abdulrachman, “Internal nutrient efficiencies of irrigated lowland rice in tropical and subtropical Asia”, Field Crops Research, Vol. 63(2), pp. 113–138, 1999.
 M. Thapa, “Factors affecting fertilizer use efficiency in dry season paddy production in Makawanpur”, Agronomy Journal of Nepal, Agron JN, Vol. 1, 2010.
 C. Dobermann, A. Witt, “A Site-Specific Nutrient Management Approach for Irrigated, Lowland Rice in Asia”, Better Crops International, Vol. 16, No. 1, 2002.
 P.J. Curran, “Exploring the relationship between reflectance red edge and chlorophyll content in slash pine”, Tree physiology, Vol. 7(1-2-3-4), Pp. 33-38, 1990.