ISSN : 0975-3710
EISSN : 0975-9107
N.E. NAVEEN1*, U.B. MANJUNATHA2, M. DINESH KUMAR3, S.M. JAYAPRAKASH4, H.S. CHAITANYA5
1ICAR-Krishi Vigyan Kendra, Brahmavar, 576213, Keladi Shivappa Nayaka University of Agricultural & Horticultural Sciences, Shivamogga, 577201, Karnataka, India
2Department of Agronomy, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural & Horticultural Sciences, Shivamogga, 577201, Karnataka, India
3Department of Agronomy, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural & Horticultural Sciences, Shivamogga, 577201, Karnataka, India
4ICAR-Krishi Vigyan Kendra, Brahmavar, Udupi, 576213, Keladi Shivappa Nayaka University of Agricultural & Horticultural Sciences, Shivamogga, Karnataka, India
5ICAR-Krishi Vigyan Kendra, Brahmavar, Udupi, 576213, Keladi Shivappa Nayaka University of Agricultural & Horticultural Sciences, Shivamogga, Karnataka, India
* Corresponding Author : naviagron@gmail.com
Received : 21-02-2022 Accepted : 17-03-2022 Published : 30-03-2022
Volume : 14 Issue : 3 Pages : 11142 - 11144
Int J Agr Sci 14.3 (2022):11142-11144
Keywords : Herbicide combinations, Mixed weed flora, Pendimethalin, Transplanted rice
Academic Editor : Rishikesh Singh
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Director of Research, Keladi Shivappa Nayaka University of Agricultural & Horticultural Sciences, Shivamogga, 577201, Karnataka, India for financial support. Authors acknowledge the Mr. Shivamoorthy Upadhyaya a progressive farmer of Kota Village, Udupi district for providing Land for conducting the research work, facilities and assistance in conducting this research. Authors are also thankful to ICAR-Krishi Vigyan Kendra, Brahmavar, Udupi, 576213 and ICAR-Krishi Vigyan Kendra, Brahmavar, Udupi, 576213
Author Contribution : All authors equally contributed
A field experiment was conducted during the Kharif season of 2017 at Farmer’s field of Kota hobli, Udupi Taluk, Karnataka, India, to find out the best herbicide combinations against mixed weed flora in transplanted rice under the coastal condition of Karnataka. At 30 and 60 days after transplanting (DAT) among the different herbicide combinations lower total density of grasses, sedges, broadleaf weeds (6.63 and 10.94 No./m2, respectively), total dry weight (0.33 and 0.76 g/ m2, respectively) and higher weed control efficiency (94.21 and 91.69 %, respectively) was recorded with the pre-emergent application of pendimethalin 38.7 CS @ 750 g a.i. ha-1 at 3 DAT fb post-emergent application of penoxsulam 24 % CS @ 22.5 g a.i. ha-1 at 30 DAT (T5). Significantly highest plant height (97.26 cm), a higher number of tillers per hill (24.19), grain yield (5306 kg/ha) and straw yield (6219 kg/ha) was recorded in the pre-emergent application of pendimethalin 38.7 CS @ 750 g a.i. ha-1 at 3 DAT fb post-emergent application of penoxsulam 24 % CS @ 22.5 g a.i. ha-1 at 30 DAT (T5) compared to weedy check, which recorded the lowest paddy yield (2874 kg/ha) and this treatment was followed by applying pre-emergent herbicide pendimethalin 38.7 CS at 750 g a.i. ha-1 at 3 DAT fb post-emergent application of penoxsulam 24 % CS at 22.5 g a.i. ha-1 at 30 DAT
1. Anonymous (2016) FAO. Rice Market Monitor and market division Food and Agriculture Organisation of United Nations.
2. Mahapatra I.C., Rao K.S., Panda B.B. and Shivay Y.S (2012) Indian J. Agron., 57, 9-13.
3. Anonymous (2015) State agriculture profile Karnataka.
4. Balasubramanian R., Veerabadran V., Devasagayam M., Krishnasamy S. and Jayapaul P. (1996) Pestology, 24(12), 18-20
5. Mukherjee D. and Singh R.P. (2005) Indian J. Agron., 50, 194-196.
6. Khaliq A., Matloob A., Ata Z. and Wahid A. (2011) Pakistan J. Weed Sci. Res., 17(2), 111-123.
7. Prabhakaran N.K., Sakthivel N. and Nithya C. (2014) Trends in Biosci., 7(24), 4244-4247.
8. Kaur S. and Singh S. (2015) Indian J. Weed Sci., 47(2), 106–109.
9. Ajay P. and Tiwari T.L. (1996) World Weeds, 3, 57-59.
10. Sanjoy S. (2005) Indian J. Weed Sci., 37(1&2), 109-110.