Effect of Goal 24% EC and Stomp 500 EC on Weed Control, Growth, Yield of Fenugreek (Trigonellafoenum-graecum) in Northern State, Sudan

Abstract

This research was conducted during two consecutive winter seasons of the years2018/19 and 2019/20 at the Demonstration Farm of the Faculty of Agricultural Sciences- El Selaim – ShergElneel Unit - Dongola Locality - Northern State, located within Latitude 16° and 22° N, and Longitude 20°and 32° E to evaluate and compare the effect of two herbicides Goal (oxyflourofen) 24% E. C. at 1.7, 2.4 and 2.5 kg. a.i/fed., and Stomp (pendimethalin) 500 E. C., at 1.7, 2.5 and 3.4 kg.a.i/fed., applied pre-emergenceon weed and yield of Fenugreek to determine the most suitable weed control treatment to achieve high yield. Results showed that, broad-leaves weeds were predominant in the experimental site. Goal herbicide was the best for controlling narrow leaved weeds while Stomp herbicide was the best for controlling broad-leaved weeds. Goal at 2.4 and 2.5 and Stomp at 2.5 and 3.5 kg a. i./fed significantly reduced weed biomass (g/m²). The high rate of Goal herbicide (2.5 kg a. i./fed) achieved least weed biomass (g) and was followed by the high rate of Stomp (3.5 kg a.i./fed). The high rate for each herbicide Goal (2.5 kg a.i./fed), Stomp (3.5 kg a.i./fed) and continuous hand weeding full season significantly increased growth parameters, number of pods/plant and the yield (kg/fed.). Combined analysis of both winter seasons indicated that, weed competition for fenugreek crop significantly reduced seed yield (kg/fed.) by 33.33%. The research reported that, the high rate for each herbicides Goal (2.5kg/fed.) and Stomp (3.4 kg/fed.) were the best.