Evaluation of the Effects of Integrated Management Weed Control on Corn Field by Using Reduced Dose of Foramsulfuron and Nicosulfuron Herbicides

Subject Areas : Journal of Crop Ecophysiology

M.  Matinfar ¹ (Former MSc. Student of Weed Science and Member of Young Researcher Club, Takestan Branch, Islamic Azad University, Takestan, Iran)
M.  Matinfar ² (MSc. Student of Weed Science and Member of Young Researcher Club, Takestan Branch, Islamic Azad University, Takestan, Iran)
F.  Lotfi Mavi ³ (Takestan Branch, Islamic Azad University and Member of Young Researcher Club, Takestan Branch, Islamic Azad University, Takestan, Iran)
A.R.  Shayestehnia ⁴ (Former MSc. Student of Weed Science and Member of Young Researcher Club, Takestan Branch, Islamic Azad University, Takestan, Iran)

Received: 2011-04-20 Accepted : 2011-08-25 Published : 2011-08-23

Keywords: corn, Foramsulfuron, Nicosulfuron, Different planting patterns, Different herbicide dosages,

Abstract :

In order to evaluate the effects of integrated weed management on weed control by using reduced herbicide dose, a field experiment was conducted in 2010 in Qazvin. The experiment was conducted in randomized complete block design with 24 treatments and 4 replications. The treatments were: different planting patterns at three levels (single row, square double rows and zigzag double row  plantings) and doses of  Nicosulfuron and Foramsulfuron application at four levels (1, 1/5, 2 and 2/5 liters per hectare), The results showed that among the different planting patterns, zigzag planting reduced weed populations and their dry weights significantly. Foramsulfuron herbicide could control weeds better than Nicosulfuron. Among the herbicide dosages, 2/5 litter dose per hectare highly reduced weed density its dry weight as compared to one litter dose.