Yavar Vaziritabar, Yazdan Vaziritabar, Farzad Paknejad, Farid Golzardi, Sina Falah Tafty
Department of Agronomy, Science and Research Branch of Tehran, Islamic Azad University, Tehran, Iran
Department of Agronomy, Karaj Branch, Islamic Azad University, Karaj, Iran
Young Researchers and Elite Club, Karaj Branch, Islamic Azad University, Karaj, Iran
Department of Agronomy, Science and Research Branch of Khozestan, Islamic Azad University, Ahwaz, Iran
Key words: Pseudomonas spp. weed biomass, weed density, grain yield.
This experiment was conducted during 2009 growing season as split plot with randomized complete block (RCBD) design arrangement in a field of Faculty of Agriculture, Islamic Azad University, Karaj branch, Iran. Application and non-application of biofeltilizer (a strain of Pseudomonas spp.) was the main treatments. The sub-treatments were application of herbicides consisted of EPTC, atrazin, nicosulfuron, foramsulfuron, rimsulfuron and 2,4-D plus MCPA respectively at 4100, 800, 80, 450, 12.5, 108 g ha-1 and weedy check to control of Bindweed )Convolvulus arvensis L.) and Venice mallow (Hibiscus trionum L.). In this research, application of biofertilizer on efficiency of some herbicides was effective in decreasing weeds dry weight. Total evaluation indicated that all herbicides in situation, application and non-application of biofertilizer, significantly reduced weeds dry weight compare to weedy check. The result of this experiment show that sub-treatment had not significantly affect on biomass and number of Bindweed )Convolvulus arvensis L.). EPTC, atrazin and foramsulfuron compared with weedy check and other sub-treatment significantly reduced the number of Venice mallow (Hibiscus trionum L.). However, EPTC compared with weedy check and other sub-treatment significantly reduced the number of this weed. Application of atrazin and EPTC resulted in significant increase of maize grain yield and the number of ear. Application of atrazin caused the highest 1000-grain weight of maize, but was not significantly different from nicosulfuron and foramsulfuron.
Get the original articles in Source: Volume 4, Number 6, June 2014 – JBES
Published By: International Network for Natural Sciences