ﻣﻘﺎﯾﺴﻪ ﮐﺎراﯾﯽ ﻋﻠﻒ ﮐﺶ ﺑﯿﺲ ﭘﺎﯾﺮﯾﺒﺎك ﺳﺪﯾﻢ وﺟﯿﻦ 12/5 درﺻﺪ ﺑﻪ دو روش ﮐﺎرﺑﺮد ﺧﺎك ﻣﺼﺮف و ﺑﺮگ ﻣﺼﺮف ﺟﻬﺖ ﮐﻨﺘﺮل ﻋﻠﻒ ﻫﺎي ﻫﺮز ﺷﺎﻟﯿﺰار

Comparison the efficacy of bispyribac sodium (Vejin, 12.5%) herbicide in soil abd foliar applied method for paddy fields weed control

ﺑﺮﺧﯽ ﻋﻠﻒ ﮐﺶ ﻫﺎ ﺑﻪ ﻫﺮ دو روش ﺑﺮگ ﭘﺎش و ﺧﺎك ﭘﺎش ﻗﺎﺑﻠﯿﺖ ﮐﺎرﺑﺮد در ﺷﺎﻟﯿﺰار دارﻧﺪ، ﮐﻪ ﺑﺮاي ﮐﺸﺎورزان ﺑﻪ دﻟﯿﻞ ﺳﻬﻮﻟﺖ ﮐﺎرﺑﺮد، ﻋﻠﻒ ﮐﺶ ﻫﺎي ﺧﺎك ﭘﺎش ﻣﻨﺎﺳﺐ ﺗﺮ ﻫﺴﺘﻨﺪ. آزﻣﺎﯾﺶ ﻫﺎي ﮔﻠﺪاﻧﯽ و ﻣﺰرﻋﻪ اي ﺑﻪ ﻣﻨﻈﻮر ارزﯾﺎﺑﯽ ﮐﺎراﯾﯽ ﻋﻠﻒ ﮐﺶ ﺑﯿﺲ ﭘﺎﯾﺮﯾﺒﺎك ﺳﺪﯾﻢ در ﮐﺎرﺑﺮد ﺑﻪ دو روش ﺧﺎك ﭘﺎش و ﺑﺮگ ﭘﺎش در ﻣﻮﺳﺴﻪ ﺗﺤﻘﯿﻘﺎت ﺑﺮﻧﺞ ﮐﺸﻮر در ﺳﺎل زراﻋﯽ 1396 و 1397 اﺟﺮا ﺷ. ﺪ در آزﻣﺎﯾﺶ ﻧﺨﺴﺖ ﮐﺎراﯾﯽ دز ﺗﻮﺻﯿﻪ ﺷﺪه ﺳﻪ ﻓﺮﻣﻮﻻﺳﯿﻮن ﺗﺠﺎري اﯾﻦ ﻋﻠﻒ ﮐﺶ ﺷﺎﻣﻞ وﺟﯿﻦ، ﮐﻠﯿﻦ وﯾﺪ، ﻧﻮﻣﯿﻨﯽ و ﻧﯿﺰ ﻋﻠﻒ ﮐﺶ ﭘﯿﺮي ﻣﺎﮐﺲ ﺑﻪ دو روش ﺧﺎك ﻣﺼﺮف و ﺑﺮگ ﻣﺼﺮف در ﺷﺮاﯾﻂ ﮔﻠﺪاﻧﯽ و در آزﻣﺎﯾﺶ دوم دوزﻫﺎي 25، 50 و 75 ﮔﺮم ﻣﺎده ي ﻣﺆﺛﺮه ﻋﻠﻒ ﮐﺶ وﺟﯿﻦ در ﮐﺎرﺑﺮد ﺑﻪ روش ﺧﺎك ﻣﺼﺮف در ﻣﻘﺎﯾﺴﻪ ﺑﺎ دز ﺗﻮﺻﯿﻪ ﺷﺪه ﻋﻠﻒ ﮐﺶ ﻫﺎي ﺧﺎك ﭘﺎش راﯾﺞ ﺑﻮﺗﺎﮐﻠﺮ و ﭘﺮﺗﯿﻼﮐﻠﺮ )ﺑﻌﻼوه ﺑﻦ ﺳﻮﻟﻔﻮرون ﻣﺘ(ﯿ ﻞ ﺑﺮرﺳﯽ ﺷﺪﻧ. ﺪ ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ در ﺷﺮاﯾﻂ ﮔﻠﺪاﻧﯽ ﺗﻤﺎم ﺗﯿﻤﺎرﻫﺎي ﻣﻮرد ﺑﺮرﺳﯽ در ﻫﺮدو روش ﺧﺎك ﭘﺎش و ﺑﺮگ ﭘﺎش داراي ﮐﺎراﯾﯽ ﺧﻮﺑﯽ در ﮐﻨﺘﺮل ﻫﺮ دو ﻋﻠﻒ ﻫﺮز ﺳﻮروف و ﭘﯿﺰور ﺑﻮدﻧﺪ )ﺑﻪ اﺳﺘﺜﻨﺎي ﭘﯿﺮي ﺑﻨﺰوﮐﺴﯿﻢ ﺑﺎ 22 درﺻﺪ ﮐﺎراﯾﯽ در روش ﺧﺎك ﭘﺎش در ﮐﻨﺘﺮل ﺳﻮروف(. ﻧﺘﺎﯾﺞ آزﻣﺎﯾﺶ ﻣﺰرﻋﻪ اي ﻧﺸﺎن داد ﮐﻪ ﺑﺮﺧﻼف ﻧﺘﺎﯾﺞ آزﻣﺎﯾﺶ ﮔﻠﺪاﻧﯽ، ﻋﻠﻒ ﮐﺶ وﺟﯿﻦ داراي ﻃﻮل دوره ﮐﺎراﯾﯽ ﮐﺎﻓﯽ ﻧﺒﻮده و روﯾﺶ ﻣﺠﺪد ﻋﻠﻒ ﻫﺎي ﻫﺮز 42 ﺗﺎ 66 درﺻﺪ ﮐﺎﻫﺶ ﻋﻤﻠﮑﺮد ﺷﻠﺘﻮك در ﺗﯿﻤﺎرﻫﺎي ﻣﺮﺑﻮط ﺑﻪ اﯾﻦ ﻋﻠﻒ ﮐﺶ ﻧﺴﺒﺖ ﺑﻪ ﺗﯿﻤﺎرﻫﺎي ﺧﺎك ﭘﺎش راﯾﺞ را ﻣﻮﺟﺐ ﺷﺪ.

Some paddy fields herbicides can be applied both foliar or directly on soil, which soil applied method is more convenient for farmers due to easy application. Pot and field experiments were conducted to evaluate the weed control efficacy of bispyribac sodium applied in both foliar and soil at the Rice Research Institute of Iran from 2017 to 2018. In the first experiment, the efficacy of recommended dosage of three commercial formulations of bispyribacsodium, including Vejin, Cleanweed, Nominee, and also Pyribenzoxim herbicides, in both soil and foliar applied methods in pot condition was investigated. In the second trial doses of 25, 50 and 75 (g ai/ha) of Vejin applied to the soil in comparison with the recommended dosage of common soil applied herbicides butachlor and pretillachlor (both with bensulfuron methyl) was investigated. The results showed that under the pot conditions, all treatments in both application methods had high efficacy in controlling both barnyardgrass and bulrush (excluding pyribenzoxime with 22% efficiency on barnyardgrass control in soil applied treatment). The results of field experiment showed that unlike the pot experiment, Vejin herbicide did not have sufficient residual efficacy on weeds and weed regrowth resulted in 42 to 66% decrease in paddy yield in the herbicide treatments compared to the conventional soil applied treatments.