کنترل تلفیقی علف های هرز ذرت (Zea mays L.) و تاثیر آن بر عملکرد و شاخص های رشد

  In order to reduce the herbicide rate, the combination of cultivation and eradicane herbicide application was tested under field conditions. Treatments including tillage practices of without cultivation, one cultivation and two cultivation and eradicane herbicide application levels of 0, 1.5, 3, 4.5, 6 Lha -1 were tested . Eradicane herbicide was used before plantation. Cultivation treatments were applied 25 and 38 days after planting. Corn cultivar was single cross 704 with 75000 plant per ha. Results showed that the two times cultivation with the high dose of herbicide was the most effective method for controlling weed resulting in the highest yield of 13841.5 kgha -1. There were significant differences among treatments for leaf area index, crop growth rate, leaf dry weight, total dry matter and grain dry matter. This research showed that the combination of cultivation plus herbicide was the most effective method for controlling weed in corn.