The Effect of Herbicides and Planting Distances on Growth Traits of Mungbean Crop and Some Traits of Weeds

Abstract

Abstract A field experiment was carried out during the spring season of 2023 at the acid research station of the College of Agriculture, Anbar University, with the aim of studying 5 weed control treatments. Spraying herbicides at the recommended rate and spraying Bentazon herbicide at the recommended rate of 2 liters per liter + Gallant super at half the rate of 0.375 liters per liter. Spray the same two herbicides at half the recommended rate, in addition to the weed-free treatment and the weedy treatment, and three distances between plants of 10, 20, and 30 cm in the growth of mungbean and the accompanying weeds, with a distance of 50 cm between the rows. The experiment was implemented in a randomized complete block design (R.C.B.D) in a split plot design with three replications. The main panels included control treatments, and the spaces between plants occupied the secondary panels. It was found that using herbicides at the recommended rate was significantly superior in eliminating and reducing weed density to 12.79 plants m-2, which positively affected all growth traits. The distance of 30 cm recorded the highest average leaf area of 2120.18 cm2 plant-1, dry weight of roots 9.63 g plant-1, and the number of branches per plant 5.46 branches per plant-1. However, the distance of 10 cm was significantly superior in reducing weed density to 18.85. m-2 plants and an increase in plant height and leaf area index (71.69 cm) and (2.88).