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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (742) Last page : (747)
Article doi: : http://dx.doi.org/10.18782/2320-6551

Effect of Different Herbicide Combinations on Weed Dynamics and Production Potential of Transplanted Rice

M. Ashok Naik¹, P.V. Ramesh Babu²*, M. Srinivasa Reddy³ and P. Kavitha⁴

¹P. G Scholar, Department Agronomy,
²Assistant Professor, Department Agronomy,
³Associate Professor and Head, Department Agronomy,
⁴Assistant Professor and Head, Department of Soil Science & Agricultural Chemistry,
Agricultural College, Mahanandi-518502, Andhra Pradesh, India
*Corresponding Author E-mail: ramesh_agro04@yahoo.com
Received: 31.05.2018 | Revised: 29.06.2018 | Accepted: 7.07.2018  

 ABSTRACT

A field experiment was conducted at College Farm, Agricultural College, Mahanandi on sandy loam soils to know the efficacy of different herbicides in transplanted rice. Most of the improved crop management practices in rice cultivation failed in controlling weeds due to poor and improper management. At present the use of herbicides or manual is not effective in timely controlling the weed population. Hence, the present investigation was aimed to study the influence of herbicide in combination with hand weeding on the productivity of transplanted rice. The experiment comprised of 8 treatments i.e., such as application of herbicides alone and their integration with one hand weeding, two hand weeding and unweeded check were tested in randomized block design with three replications. Among these treatments, the lower weed density and weed dry weight, higher weed control efficiency, yield attributes, maximum grain yield (5637.00 kg ha-1), straw yield (6599.00 kg ha-1) and harvest index (46.60 %) were recorded under two hand weeding, which was at par with post emergence application of bispyribac sodium 20 g a.i. ha-1in combination with hand weeding at 40 DAT.

Key words: Transplanted rice, Herbicides, Hand weeding, Weed control efficiency, Yield attributes and Yield.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Ashok Naik, M., Ramesh Babu, P. V., Srinivasa Reddy, M. and Kavitha, P., Effect of Different Herbicide Combinations on Weed Dynamics and Production Potential of Transplanted Rice, Int. J. Pure App. Biosci.6(5): 742-747 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6551