اثر رﻳﺰﮔﺮدﻫﺎ و ﻋﻠﻒﻛﺶﻫﺎی ﻣﺨﺘﻠﻒ ﺑﺮ ﻋﻤﻠﻜﺮد داﻧﻪ و ﻫﻤﭽﻨﻴﻦ ﻓﻠﻮرﺳﺎﻧﺲ ﻛﻠﺮوﻓﻴﻞ در ﻣﺰرﻋﻪ ذرت (. Zea mays L ) در ﻣﻨﻄﻘﻪ ﻛﺮﻣﺎﻧﺸﺎه

In order to study the influence on grain yield of corn soil dust and maximum photochemical efficiency of photosynthetic ll field experiment was conducted at Research farm of Razi University, Kermanshah in 2012. The evaluated treatments were using herbicide foramsulfuron, nicosulfuron and herbicidal mixture of 2, 4-D+MCPA in combination with and without adjuvants ammonium sulfate (AMS) and AMS+ maisoil on weeds with washed and unwashed shoots. The experimental design was a randomized complete block in which treatments were arranged as factorial with four replication. Based on these results chlorophyll fluorescence Indicators of FV/FM and chlorophyll fluorescence in the presence of PI and general soil dust declined. Soil dust also reduces the yield of corn.