نوع مقاله : مقالات پژوهشی
عنوان مقاله English
نویسندگان English
The lack of herbicides for broadleaf weed control is one of the most important challenges of
chickpea production in Iran. Field experiments were conducted in Lorestan, Kermanshah, East and
West Azerbaijan to evaluate weed control and chickpea response to application of some herbicides in
2006. There were four replications at each site and treatments were arranged in a randomized complete
block design. The experimental treatments in this study were post emergence application of lentagran
(2.5 l/ha), pre emergence application of simazine plus prometrin (0.800 plus 0.830 kg/ha,
respectively), simazine (0.800 kg/ha), prometrine (0.830 kg/ha), pre emergence application of
fomesafen (1 l/ha), post emergence application of fomesafen (1 l/ha plus nonionic surfactant sitogit
1:1000), preplant incorporation (1 l/ha), preemergence (1 l/ha) and post emergence (0.7 l/ha)
application of Imazethapyr, preplant incorporation (2.5 l/ha) and post emergence (2.5 l/ha) application
of pendimetalin, and weed hand-weeded control. Imazethapyr in all manner of application in spite of
acceptable weed control (80% reduction of weeds density) had seriously injury effects on chickpea
plants. post emergence application of lentagran, preemergence application of fomesafen, simazine and
simazine plus prometrin were preferable herbicide treatments with minimum injury on chickpea and
effectively control of weed species. Preemergence application of fomesafen in the meanwhile of
relatively appropriate weed control had not unacceptable phytotoxy effects on chickpea, so by
limitation of chickpea herbicides, preemergence application of this herbicide can be promising.
Fomesafen exhibited the potential to provide a relatively considerable weed control level in chickpea
(88% reduction of weeds biomass). These results indicate that fomesafen is an effective herbicide for
control of several broadleaf weeds with less injurious to chickpea. Imazethapyr treatments caused
unacceptable chickpea injury.
Key words: Fomesafen, Imazethapyr, Prometrine, Simazine
