International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (475) Last page : (480)
Article doi: http://dx.doi.org/10.18782/2320-7051.6136
Effect of Different Doses of Herbicides on Weed Control Efficiency, Growth and Productivity of Transplanted Rice (Oryza sativa)
Naresh Kumar1*, Dharam Pal Nandal2, Amit Kumar1 and Mukesh Kumar1
1Department of Agronomy, CCS, Haryana Agricultural University Hisar-125 004, India
2Director, Directorate of Student Welfare, CCS, Haryana Agricultural University Hisar-125 004, India
*Corresponding Author E-mail: naresh.jindra@gmail.com
Received: 30.12.2017 | Revised: 28.01.2018 | Accepted: 6.02.2018
ABSTRACT
An experiment was undertaken to study the response of different doses of herbicides on weed control efficiency, growth parameters and productivity of transplanted rice. The investigation was carried out at Students’ Farm of College of Agriculture, Chaudhary Charan Singh Haryana Agricultural University; Kaul (Kaithal) situated at latitude of 29o51′ North and longitude of 76o41′ East at an elevation of 241 meters above mean sea level. The experiment was laid out in randomized block design replicated three times during the kharif season of 2008 consisting 15 treatments combinations viz., T1- 25 g/ha dose of Bispyribac sodium 10 SC at 20 DAT; T2- 25 g/ha dose of Bispyribac sodium 10 SC at 25 DAT; T3- 30 g/ha dose of Bispyribac sodium 10 SC at 20 DAT; T4- 30 g/ha dose of Bispyribac sodium 10 SC at 25 DAT; T5- 30 g/ha dose of Azimsulfuron 50 DF at 20 DAT; T6- 30 g/ha dose of Azimsulfuron 50 DF at 25 DAT; T7- 40 g/ha dose of Azimsulfuron 50 DF at 20 DAT; T8- 40 g/ha dose of Azimsulfuron 50 DF at 25 DAT; T9- 750 g/ha dose of Pretilachlor 50 EC at 3 DAT; T10- 1500 g/ha dose of Butachlor 50 EC at 3 DAT; T11- 100 g/ha dose of Oxadiargyl 80 WP (Top Star) at 3 DAT; T12- 20 g/ha dose of Pyrazosulfuron 10 WP at 3 DAT; T13- 56.25 g/ha dose of Fenoxaprop-p-ethyl 9EC (Whip Super) at 25 DAT; T14- Weed Check; T15- Weed Free. Findings of the experiment revealed that among POE treatments, T3 recorded significantly lowest total weed density at 60 DAT (7.2/m2) and 80 DAT (6.2/m2), lowest dry matter accumulation by weeds at harvest (6.5 g/m2) in comparison to rest of the other treatments except treatment T1 (7.8/m2, 7.1/m2 and 7.7 g/m2 respectively) to which it was statistically at par. Highest weed control efficiency was observed in treatment T3 (87.2%) among POE treatments and in treatment T9 (89%) among PRE treatments. Performance of treatments T1, T3 and T4 were statistically at par with PRE treatment T9 which is best among all treatments except treatment T15 (weed free) in terms of highest number of tillers production, dry matter accumulation by crop plants and productivity of rice crop. So using Bispyribac sodium (POE) 25 g/ha at 20 DAT or 30 g/ha at 20 DAT are the alternate options in transplanted rice in terms of weed control as well as productivity of rice.
Key words: Rice, Weed, POE, Bispyribac sodium, Herbicide
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Kumar, N., Nandal, D.P., Kumar, A. and Kumar, M., Effect of Different Doses of Herbicides on Weed Control Efficiency, growth and productivity of Transplanted Rice (Oryza sativa), Int. J. Pure App. Biosci.6(1): 475-480 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6136
