Tanveer, Asif; Nadeem, Muhammad Athar; Abbas, Rana Nadeem; Tufail, Muhammad Shoaib; Tahir, Muhammad; Javaid, Muhammad Mansoor
May 2012
Herbologia;Apr2012, Vol. 13 Issue 1, p83
Academic Journal
A field experiment was carried out to study the effect of different doses of a new herbicide namely formasulfuron + isoxadifen ethyl + iodosulfuron-methyl-sodium in comparison with atrazine+S-metolachlor on weeds and yield of maize (Zea mays L.) planted in spring and autumn season. Experiment comprised six treatments: weedy check, manual hoeing, atrazine + S-metolachlor (Primextra gold-720SC) 1080 g a.i. ha-1, formasulfuron + isoxadifen ethyl + iodosulfuron-methyl-sodium (Maister-61WG) 152.5, 190.39, 228.75 g a.i. ha-1 sprayed as post-emergence at 20 days after sowing of crop. Formasulfuron + isoxadifen ethyl+iodosulfuron-methyl-sodium 228.75 g a.i. ha-1 gave 41.2% to 63.9% control of Cyperus rotundus and 90.3 to 94.4% control of Achyranthus aspera in spring maize while control of C. rotundus and Trianthema portulacastrum in autumn maize was 56.2 to 61.9% and 85.2 to 86.5%, respectively. Grain yield ranged from 4.60 to 5.63 t ha-1 with formasulfuron + isoxadifen ethyl + iodosulfuron-methyl-sodium 228.1 g a.i. ha-1 in both the seasons. Grain yield was highest with atrazine + S-metolachlor in both the seasons (5.2-5.8 t ha-1).


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