Vol. 12, Issue 9 (2023)

Author(s):
K Vineela, Dr. D Subramanyam, Dr. G Karuna Sagar, Dr. P Sudhakar and Dr. KV Naga Madhuri

Abstract:
A field experiment was conducted during late kharif season of 2021-22 and 2022-23 at S.V. Agricultural College Farm, Tirupati in split-plot design with three replications to know the effect of different organic nutrient management practices for different systems of rice cultivation. Among the different systems of rice cultivation, significantly higher growth and yield attributes of rice crop were produced under normal transplanted rice and all these parameters were at par with wet direct seeded rice. Among the organic nutrient management practices tested, higher growth and yield attributes as well as yield were obtained with application of 100% RDN through PM which was at par with 50% RDN through VC + 50% RDN through PM but both of them were significantly inferior than 100% RDN through inorganic fertilisers on sandy clay loam soils of Southern Agro-Climatic Zone of Andhra Pradesh. Application of 100% RDN through PM in transplanted rice found effective in obtaining higher grain yield as well as benefit: cost ratio than rest of systems of rice cultivation and organic nitrogen management practices.