Efficacy of New formulation of Isoproturon with 2, 4-D against Weeds in Wheat
Keywords:
Arelon, Isoking, Isoproturon, <I>Phalaris minor</I>, Avena, Wheat.Abstract
Two formulations of isoproturon viz. arelon and isoking (1.0 and 1.25 kg a.i./ha) each with 2,4D (0.75 and 1.0 kg/ha) as tankmix and sequence application along with farmers' practice and untreated check were evaluated for weed control in wheat during 200607 and 200708 at Palampur. Phalaris minor (42.6%), Avena ludoviciana(25.1%), Lolium temulentum (11.1%), Vicia sativa, (7.6%), Anagallis arvensis (9.6%), and Coronopus didymus (4.0%) were the major weed species and reduced wheat grain yield by 38.7%. Tankmix application of isoking + 2,4D effectively controlled P. minor, A. ludoviciana and L. temulentum and were on par with farmer's practice. Arelon 1.0 kg a.i./ha + 2,4D 1.0 kg/ha resulted in lowest count of Vicia sativa, while isoking 1.0 kg a.i./ha + 2,4D 1.0 kg/ha resulted in lowest count of Anagallis arvensis. All herbicidal treatments were significantly superior to farmers' practice in controlling C. didymus. Isoking 1.0 kg a.i./ha + 2,4D 1.0 kg/ha recorded highest weed control efficiency (71.5), treatment efficiency index (1.93), crop resistance index (5.0) and resulted in highest grain yield, net returns (Rs. 14373/ha) and marginal benefit:cost ratio (13.2). Isoking 1.25 kg a.i./ha + 2,4D 0.75 kg/ha had highest weed management index, agronomic management index and integrated weed management index.Downloads
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Published
2012-06-01
How to Cite
Kumar, S., Rana, S. S., Chander, N., & Angiras, N. N. (2012). Efficacy of New formulation of Isoproturon with 2, 4-D against Weeds in Wheat. Himachal Journal of Agricultural Research, 38(1), 12–17. Retrieved from https://hjar.org/index.php/hjar/article/view/118530
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