Growth Parameters of Rice (Oryza sativa) as Influenced by Tillage and Weed Management Practices in Rice-Maize-Greenmanure System Under Conservation Agriculture

K Vijayagouri¹*, M Madhavi², G Pratibha³ and T Ramprakash⁴

¹Department of Agronomy, College of Agriculture, Professor Jayashankar Telanagana State Agricultural University, Hyderabad, Telangana, India
²Senior Professor and Associate Dean (Agronomy), Agriculture College, Aswaraopet, India
³Principal Scientist (Agronomy), CRIDA, Hyderabad, India
⁴Principal Scientist (Soil Science) and Head, AICRP on Weed Management, Hyderabad, Telangana, India

*Corresponding Author: K Vijayagouri, Department of Agronomy, College of Agriculture, Professor Jayashankar Telanagana State Agricultural University, Hyderabad, Telangana, India.

Received: September 20, 2022; Published: October 05, 2022

Abstract

Crop management practices highly influences the profitability of rice production. Tillage and weed management practices effects the growth of rice and ultimately final yield. In order to evaluate the influence of different Tillage and weed management practices on various growth parameters of transplanted as well as direct seeded rice under rice-maize-greenmanure system, a field experiment was conducted during kharif-2018 in the field of AICRP on Weed Management, College of Agriculture, Professor Jayashankar Telanagana State Agricultural University, Hyderabad. The experiment was laid out in split plot design with five main plots, three sub-plots and three replications. The main plots included five tillage practices such as i) conventional tillage transplanted rice fb conventional tillage maize, ii) Conventional tillage transplanted rice fb zero tillage maize, iii) conventional tillage direct seeded rice fb conventional tillage maize, iv) zero tillage direct seeded rice fb zero tillage maize with residue cover and v) zero tillage direct seeded rice with residue cover fb zero tillage maize with residue cover and sub plots including three weed management practices i.e., chemical weed management with recommended herbicides, Integrated Weed Management (IWM) and unweeded control. In terms of plant height, tillers and dry matter, transplanted rice performed well compared to direct seeded rice irrespective of tillage practice adopted. Among direct seeded rice treatments, conventional tillage direct seeded rice proven to be better than zero tillage direct seeded rice. Integrated Weed Management was proven to be superior than chemical weed management in terms of tiller production and dry matter production whereas Plant height was comparable between chemical weed management and Integrated Weed Management. Transplanted rice proven to be superior than direct seeded rice irrespective of tillage and weed management practices. The results showed that Conventional tillage combined with Integrated weed management resulted in superior growth parameters in both transplanted rice as well as direct seeded rice.

Keywords: Direct Seeded Rice; Residue Cover; Zero Tillage; Integrated Weed Management; Conventional Tillage; Sesbania

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Citation

Citation: K Vijayagouri., et al. “Growth Parameters of Rice (Oryza sativa) as Influenced by Tillage and Weed Management Practices in Rice-Maize-Greenmanure System Under Conservation Agriculture". Acta Scientific Agriculture 6.11 (2022): 14-20.

Copyright

Copyright: © 2022 K Vijayagouri., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.