كليدواژه :
كنترل مكانيكي , Chemical control , Mechnical control , علفهاي هرز , corn , Weeds , Integrated control , كشاورزي , ذرت , كنترل شيميايي , كنترل تلفيقي
چكيده لاتين :
Use of efficient methods of weed control with as regards enviromental sustainability as well as increased crop yield is essential. In order to study different methods of weed control, an experiment was conducted in 2000 at the experimental field of Ramin College, Shahid Chamran University. Treatments included Atrazine + Lasso, Atrazine +lasso +one time cultivaton + 2,4-D, Atrazine + lasso + 2 times cultivaton, Eradicane, Eradicane + one time cultivaton + 2, 4-D, Eradicane + 2 times cultivaton, one time cultivaton + 2,4-D, 2 times cultivaton + 2,4-D, weed free and weed infested controls. Treatments were replicated 4 times and were compared in a Complete Randomized Block Design. Echinochloa crus-galli, Cyperus spp and Convulvolus arvensis constituted the predominant weeds. Amarantus retroflexus, Malva montana and Alhaji camelerum were of less importance . Combination of preplant application of herbicides with 2 times cultivation effectively controlled weeds. However, preplant application of a mixture of Atrazine + lasso was a more effective treatment on a wide range of weeds than Eradicane application, during the whole growing season. This treatment effectively controlled Echinochloa crus-galli, Cyperus ratundus, Convulvolus arvensis and other weeds by 93 , 78.83 and 99 percent respectively being the best treatment for weed control in corn under conditions similar to those in this experiment.
