International Journal of Chemical Studies
Vol. 5, Issue 6 (2017)
Effect of herbicides in combination and sequential use on crop growth and production potential in hybrid maize
Author(s): Satyendra Kumar Gupta and GC Mishra
Abstract: An experiment was carried out at Agronomy Main Research Station, OUAT, and Bhubaneswar during kharif, 2016. The experiment was laid out in randomized block design with ten treatments and three replications. Amongst broad leaved weeds, Luduwigia parviflora was the dominant while in grasses, Digitaria sanguinalis was most prevalent and only one sedge weed Cyprus rotundus occurred. The herbicides in combination and sequential application comprised of atrazine @ 1.0 kg/ha as pre- emergence (PE) at 1 days after sowing (DAS), atrazine @750 g/ha+ pendimethalin @750 g /ha as PE at 1 DAS, atrazine @750 g /ha + 2,4-D amine salt @ 400 g /ha as post emergence (PoE) at 25 DAS, halosulfuron @ 60 g/ha as PoE at 25 DAS, tembotrione @120 g/ha as PoE at 25 DAS, atrazine @1.0 kg/ha as PE at 1 DAS followed by halosulfuron @60 g/ha at 25 DAS, pendimethalin @1.0 kg/ha as PE at 1 DAS followed by atrazine @ 750 g /ha + 2,4-D amine salt @ 400 g/ha as PoE at 25 DAS and atrazine @1.0 kg/ha as PE at 1 DASfollowed by tembotrione @120 g/ha at 25 DAS were tested with hand weeding at 20 and 40 (DAS) and un-weeded control. Weed management treatments exerted the significant effect in increasing the grain yield over un-weeded control (Table 24). Pre-emergence application of atrazine @ 750 g/ha + pendimethalin @ 750 g/ha at 1 DAS recorded the highest grain yield (7.00t/ha).
Pages: 2112-2115 | 432 Views 9 Downloads
How to cite this article:
Satyendra Kumar Gupta, GC Mishra. Effect of herbicides in combination and sequential use on crop growth and production potential in hybrid maize. Int J Chem Stud 2017;5(6):2112-2115.