هقايسه كارايى علف كشى .بذدى ٠تالين با بوخى علف كشرءهاى ثبتشده در كنترل ءلفهاًىهرز مزارع ىي ١ز جنوب كرمان (Panjabi)

In order to stud؛, the effect of pendimethaiin (Prowl) on weed control of onion (Allium cepa L.) fields, an experiment has been carried out in randomized complete block design with four replications, during 2017 in Agricultural Research Center of South Kernian. The treatments include application of pendimethaiin (Prowl) at 3.5, 3, 2.5, 2 L ha" (pre-emergence), oxyfluorfen (Goal) at 750 ml ha'), and its repetition 18 days later (postemergence), oxadiazon (Ronestar) at 3 L ha') (per-emergence), oxadiazon at 2 L ha') (post-emergence), ioxynil (Totril) at 3 1, ha') (post-emergence) plus removing narrow leaves weeds by, hand, and weed free as control. The highest relative abundance of weed species has been Bromus tectorum L.٠ Malva varviflor L.٠ Chenopodium murale L..Anagcdlis arvensis L, and Rumex crispus L. at 39%, 17%. 12%, 9%, and 8%, respectively. Results show that herbicide treatments have had a significant effect on weed density, and biomass. Applications of pendimethaiin at 3.5 L ha) reduces biomass of A. arvensis, R. crispus, M. parviflor, B. tectorum, c. murale, and total weed by, 100%, 92%, 91%, 82%, 77%, and 79%, respectively. Onion yield has been 5٠9.95 ton ha'), increased by 138% when pendimethaiin is applied at 3.5 L ha'). Therefore, Applications of pendimethaiin at 3.5 L ha-1 is recommended in onion fields because of optimum weed conrol efficiency and increasing yield. [ABSTRACT FROM AUTHOR]

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