Int.J.Curr.Microbiol.App.Sci (2020) 9(11): 349-358 349 Original Research Article https://doi.org/10.20546/ijcmas.2020.911.042 Impact of System of Rice Intensification (SRI) Components on Nutrient Content, Nutrient Uptake, Soil Parameters and Economics over Conventional Puddled Transplanted Rice Rahul Kumar 1 , Manish Raj 1* , Kanhaiya Lal 1 , Aditya Shri 1 , Ajay Kumar 1 and Priyanka Kumari 2 1 Department of Agronomy, 2 Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur, 813210, Bihar, India *Corresponding author ABSTRACT Introduction Globally rice spread in an area of about 216 million hectares (mha) with the production and productivity of 655 million tonnes (mt) and 3004 kg ha -1 respectively. Rice stands second position in area and production in world (FAOSTAT 2015). In India rice is grown in an area of about 43.19 mha having 110.15 mt production of and 2550 kg ha -1 productivity (Annual report of Ministry of Agriculture and Farmers‟ Welfare, 2017-18). It is a great challenge to the farmers and researchers to achieve the Country‟s needs i.e. 140 mt of rice requirement (Dinesh et al., 2017) in the year 2025 under the worsening condition of water scarcity and reduction in cultivable land (Shobharani et al., 2010). Rice is generally grown in traditional transplanted system where continuous water stagnation is present which leads to water losses through percolation, evaporation, seepage and results in poor water use International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 11 (2020) Journal homepage: http://www.ijcmas.com An experiment was conducted at research farm of Bihar Agricultural University, Sabour, Bhagalpur, India during Kharif 2019 to study the impact of system of rice intensification (SRI) components on nutrient content and uptake, soil parameters and economics over conventional puddled transplanted rice. The experiment was laid out in completely randomized block design with eight treatments replicated thrice. The first treatment was conventional puddle transplanted rice (CPTR), thereafter six treatments were CPTR with an addition component of SRI in each treatment and the last treatment was sole SRI. Results revealed that the highest gross return (Rs 122650 ha -1 ) was recorded in the SRI, which was statistically at par with CPTR with 12 days seedling. The highest net return (Rs 78975 ha -1 ) was recorded in the CPTR with 12 days seedling, and highest B:C ratio obtained (2.12) in CPTR with 12 days seedling. Among all the treatments the N, P and K content in grain was recorded no significant difference. The highest N, P and K uptake in grain and straw were recorded with SRI over other treatments. Keywords System of Rice Intensification, Transplanted rice, CPTR Accepted: 04 October 2020 Available Online: 10 November 2020 Article Info