jimsonweed (datura stramonium l.) is an important weed in bean fields in iran. in order to investigate the effect of density and relative time of emergence of jimsonweed on yield and yield components of chitti bean, a field study based on factorial experiment was conducted at farm bean research national station in khomein in 2006. treatments were chosen to provide four different weed densities ...

efficacy of many herbicides to control broad- and narrow-leaf weeds (grass weeds) in tobacco fields of mazandaran and guilan provinces was investigated. the experiment was randomized complete blocks design in four replications and the following treatments: eptam (eradicane 82% ec) at 6 l.ha-1 which incorporated pre-planting (ppi), trifluralin (treflan 48% ec) at 2 l/ha ppi, cycloate (roneet 72....

The present study attempted to investigate how language teacher educators evaluated two current approaches: monologic or prevalent pedagogy which is widely practiced all across the world including Iran, and dialogic pedagogy which is theoretically established by Yakubinsky, Bakhtin, and Vygotsky. The study tried to understand, whether Iranian EFL teachers and teacher educators preferred to adop...