Study the Efficiency of Chemical Control of Weeds on Weed Growth and Growth Traits of Chickpea under Various Planting Dates
Ali Khorgami
1
(Associate Professor of Agronomy and Plant Breeding, College of Agriculture, Islamic Azad University, Khorram Abad Branch, Iran.)
Mahnaz Yarahmadi
2
(MSc graduated in Agronomy, College of Agriculture, Islamic Azad University, Khorram Abad Branch, Khorram Abad, Iran.)
Keywords: weed, Chickpea, herbicide, Metribuzin, winter planting,
Abstract :
In order to investigate the effect of planting date and chemical control of weeds on morphological traits of chickpea in Khorramabad climate, this research was carried out in Khorramabad city in 2012-2012. The experiment was conducted as split plot experiment and was conducted in a randomized complete block design. The application of herbicide (H) with seven levels: (H1 (Trilfuralin herbicide, 2.1 liters per hectare before planting), H2 (herbicide podidaltine 3 liters per hectare pre-emergence), Herbicide H3 Pondimetalin at a rate of 3 liters per hectare and post-fertilization), H4 (metribuzin herbicide at a rate of 0.5 kg ha-1 and advance), H5 (2 kg per hectare herbicide and progressively), H6 (Plant isolate 1 liter / ha), H7 (uncontrolled control)} as the main cultivar and date of cultivation (P) with two levels: P1 (cultivated winter), P2 (cultivation in spring) As a sub-plot of the plan. Based on analysis of variance, plant density and dry weight of herbicides were affected by herbicide application and were significant. In general, all of the applied herbicides significantly reduced the density and dry weight of fruits per unit area. But the best treatment among them was the use of matricycin herbicide as a herbaceous control, which reduced the weed density and weed dry weight by 70% compared to weed control. According to the results, metamorphic honey beeswax had the most control on weeds and also had the least negative effect on chickpea, which caused chickpea seedlings to be higher than other treatments.