Int.J.Curr.Microbiol.App.Sci (2020) 9(10): 1635-1638 1635 Original Research Article https://doi.org/10.20546/ijcmas.2020.910.196 Effect of Phosphorus and Gypsum on Growth, Yield and Economics of Groundnut (Arachis hypogea L.) D. R. M. S. Vidya Sagar*, Joy Dawson and Ramasahayam Uday Kumar Reddy Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India *Corresponding author ABSTRACT Introduction Groundnut (Arachis hypogea L.) is an important oil seed crop and a grain legume. India is the second largest producer of Groundnut after China. It contributed to sustainable agriculture being a legume and is cultivated in both kharif and Zaid by farmers. According to (Satish et al., 2011), groundnut is primarily used for extraction of oil, with an analysis of about 46.70%. It is also consumed directly because of its high food value, which is again due to its higher content of protein (22.0%), carbohydrate (10.0%) and minerals (3.0%). Among different agronomic practices, nutrient management is one which accelerates growth and productivity of the crop. Phosphorus is essential for the formation of chlorophyll and protoplasm, cell division and development of meristematic tissues, also helps in the seed development and maturity of plant. This nutrient is required for synthesis of oil, protein, acid and is also involved in formation of glucosinolates which on hydrolysis increases the oil content. Its deficiency causes severe restriction in the growth of plant tops and root (Mirvat et al., 2006). International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 10 (2020) Journal homepage: http://www.ijcmas.com The experiments comprising of 9 treatments, viz. Phosphorus at 40, 50 and 60 kg/ha along with 3 levels of Gypsum at 200, 300 and 400 kg/ha. It was laid out in a Randomized Block Design and replicated thrice. Maximum plant dry weight was recorded with Phosphorus 60 kg/ha along with Gypsum 400 kg/ha. Yield attributes namely more number of pods/plant and kernel yield was recorded with Phosphorus at 60 kg/ha along with Gypsum at 300 kg/ha. Net Returns and Benefit Cost Ratio was also recorded in the aforesaid treatment. Keywords Groundnut, kharif, Gypsum, Phosphorus, Growth, Yield, Economics Accepted: 12 September 2020 Available Online: 10 October 2020 Article Info