Economic Affairs, Vol. 68, No. 01, pp. 455-461, March 2023 DOI: 10.46852/0424-2513.1.2023.14 How to cite this article: Gogoi, H., Halim, R.A., Saikia, T., Deka, N. and Singh, S.P. (2023). Resources Use Efficiency in Sali (Winter) Rice Cultivation in Upper Brahmaputra Valley Zone of Assam- A Comparative Study of Mechanised and Non-mechanised Farm. Econ. Aff., 68(01): 455-461. Source of Support: None; Conflict of Interest: None Research Paper Resources Use Efficiency in Sali (Winter) Rice Cultivation in Upper Brahmaputra Valley Zone of Assam- A Comparative Study of Mechanised and Non-mechanised Farm Horindra Gogoi 1 *, R.A. Halim 1 , Trishnalee Saikia 2 , Nivedita Deka 1 and Soibam Peter Singh 3 1 Department of Agricultural Economics and Farm Management, Assam Agricultural University, Jorhat, India 2 Krishi Vigyan Kendra, Assam Agricultural University, Jorhat (Teok), Assam, India 3 Krishi Vigyan Kendra, Anjaw, Arunachal Pradesh, India *Corresponding author: horindra.gogoi@aau.ac.in (ORCID ID: 0009-0008-7904-3623) Received: 15-12-2022 Revised: 22-02-2023 Accepted: 01-03-2023 ABSTRACT T he present study was conducted in Upper Brahmaputra Valley Zone of Assam, India in January, 2020 to study resource use efciency in Sali rice cultivation in mechanised and non-mechanised farms. A sample of 120 farmers was selected randomly from two Agricultural Development Ofcer Circle (ADO Circle) each comprising of 5 villages. Results revealed that human labour and seed were used comparatively in lesser quantities in mechanised farms than the non-mechanised farms, while manures and fertilizers were applied in higher quantities in mechanised farms than the non-mechanised farms. Coefcient of fertilizer was signifcant in both mechanised and non mechanised farms. On the other hand, coefcients of elasticity of seed and machine labour were positively signifcant in mechanised farms, while FYM was observed to be positively signifcant in non-mechanised farms. Human labour was found to be negatively signifcant in non-mechanised farms. In mechanised farms, the ratio of Marginal Value Product (MVP) to Marginal Factor Cost (MFC) was highest for machine labour (1.85) followed by seed (1.59) and fertilizers (1.52). The coefcients of the production function were estimated to be positively signifcant for seed, fertilizers and machine labour used, while the allocative efciency ratios revealed that an additional expenditure of one rupee on these inputs would increase the gross returns by ` 1.59, ` 1.52 and ` 1.85 respectively. In case of non-mechanised farms, the ratio of MVP to MFC for area, seed, plant protection chemicals, human labour and bullock labour were found to be less than unity. HIGHLIGHTS m In mechanised farms, the utilization of human labour and seed was comparatively less than the non-mechanised farms, while more quantities of manures and fertilizers was utilized in mechanised farms as compared to the non-mechanised farms. m The MVP to MFC ratio in mechanised farm was greater than unity for human labour, seed and fertilizer indicating that an additional expenditure of one rupee on those inputs would increase the gross returns by ` 1.59, ` 1.52 and ` 1.85 respectively. m The non-mechanised farms depicted the over utilization of the area, seed, plant protection chemicals, human labour and bullock labour as indicated by the ratio of MVP to MFC less than unity. Keywords: Resource use efficiency, sali rice cultivation, resource utilisation