International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (1945) Last page : (1950)
Article doi: http://dx.doi.org/10.18782/2320-7051.5273
Effect of High Density Planting and Weed Management Practices on Weed Drymatter, Weed Indices and Yield of Bt Cotton
B. Madavi1*, P. Leela Rani2, G. Sreenivas3 and K. Surekha4
1Department of Agronomy College of Agriculture, Rajendranagar, Hyderabad, PJTSAU
2AICRP on Weed Management, Rajendranagar, Hyderabad, PJTSAU
3Agro Climate Research Centre, ARI, Rajendranagar, Hyderabad PJTSAU
4Indian Institute of Rice Research, Rajendranagar,Hyderabad
*Corresponding Author E-mail: bodigemadavi@gmail.com
Received: 22.07.2017 | Revised: 1.08.2017 | Accepted: 2.08.2017
ABSTRACT
An experiment was conducted during kharif, 2015 at College Farm, College of Agriculture, Rajendranagar, Hyderabad to find out the growth and yield of Bt cotton as influenced by high density planting system and different weed control management practices. The treatments comprised of four planting densities andfour weed management practices. Among the plant densities, the plant density of 1,11,111 plants ha-1 normal planting (60 cm x 15 cm) produced significantly more kapas yield (3134 kg ha-1), reduced weed drymatter with higher weed control efficiency (61.88%) as against high plant density of 1, 11,111 plants ha-1 paired row planting and 1, 48,148 plants ha-1. Among the weed management practices, pre emergence application of pendimethalin 1.0 kg ha-1fbPoE tank mix application of pyrithiobac sodium 62.5 g ha-1+quizalofop-p-ethyl 50 g ha-1 at 20, 40 and 60 DAS recorded more kapas yield (3119 kg ha-1), with higher weed control efficiency (73.24%) with reduced weed drymatter.
Key words: Bt cotton, HDPS, Weed control efficiency, Weed index, Yield.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Madavi, B., Rani, P.L., Sreenivas, G. and Surekha, K., Effect of High Density Planting and Weed Management Practices on Weed Drymatter, Weed Indices and Yield of Bt Cotton, Int. J. Pure App. Biosci.5(4): 1945-1950 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5273
