in order to evaluate the efficacy of some new herbicides in corn farms, a field study was conducted during the 2010 growing season in jiroft. the experimental design was completely randomized blocks, with 11 treatments and 4 replications. treatments were nicosulfuron at 2lit/ha, foramsulfuron at 2.5 lit/ha, rimsulfuron at 50 g/ha, nicosulfuron+ rimsulfuron at 175 g/ha, bromoxynil+mcpa at 1.5 li...

introduction: weed competition is one of the major factors which limit sugar beet production in the world. weed – crop interactions are based on competition for water, nutrients and light and allelopathic effects may also play a small role. in sugar beet weed interference, all these factors are important too, but the light is of prime importance. due to the fact that a lot of weeds can grow abo...

hand eczema is a common distressing skin problem. it is an immune reaction to haptens. thus, substances that inhibit immune system can be effective in the treatment of hand eczema. in this study, topical fumaric acid 5% cream is compared with topical steroid in the treatment of hand eczema. patients with hand eczema were randomly divided into two groups. one group received fumaric acid 5% in a ...

a field experiment was conducted at college of aburaihan, university of tehran, iran in 2007 to evaluate the herbicides efficacy in a marigold nursery to control weeds including annual flowers. experimental design was a rcbd with total 12 treatments replicated four times. treatments were trifluralin preplant incorporated at two and three li/ha, trifluralin preplant non incorporated at two and t...

Background and aimsCompetitive vegetation in forest stands influence seedling growth by changing soil nutrient availability. However, studies on the effects of different weed control methods Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) are rare.MethodsWe applied three methods, comprising artificial sickle weeding (ASW), woody disc (WDW), nonwoven cloth (nWCW), to explore their effect see...

Projecting invasion treatment outcomes and determining controlling efficiency under various management strategies have important implications in field management. Different from herbicide usage that may cause environmental pollution nontarget effects on native plants, nonchemical (i.e., mechanical) methods, such as mowing hand weeding, shown great targeted effectiveness invasion. However, an in...