Effectiveness of Some Herbicides and Herbicide Combinations Applied to Chickpea (Cicer Arietinum L.) Culture

Abstract

The purpose of this work is to establish the effectiveness of herbicides or combinations of herbicides under the influence of different climatic conditions in the study years (2019-2021). In this regard, ARDS Teleorman has established an experiment with the application of herbicides and combinations of herbicides, applied in different doses, in different application periods, placed according to the method of randomized blocks in three repetitions, on a chernozem cambic soil with clay content over 42%. The Burnas variety, a chickpea variety created by ARDS Teleorman, was used. Based on the frequency, the following specific problems were identified: Digitaria sanguinalis, Echinochloa crus-galli, Setaria spp., Amaranthus retroflexus, Chenopodium album, Solanum nigrum, Hibiscus trionum, Polygonum convolvulus, Sinapis arvensis, Stellaria media, Veronica spp., Xitalicum Cirsium arvense, Convolvulus arvensis, Sonchus arvensis. On average, over the three years of experimentation, the combination of herbicides applied to the V8 variant [312.5 g/l S-metolaclor; 87.5 g/l terbutilazin applied in a dose of 4.0 l/ha in pre-emergence + isoxaflutol 240 g/l Ciprosulfamida (safener): 240 g/l applied in a dose of 0.3 l/ha in pre-emergence] 98%, variant V5 [960 g/l S-metolaclor isoxaflutol 240 g/l applied in a dose of 1.2 l/ha in pre-emergence + isoxaflutol 240 g/l Ciprosulfamida (safener): 240 g/l in a dose of 0.2 l/ha in pre-emergence] 96.4% and in variant V3 [50g/l quizalofop-p-ethyl at a dose of 1.2 l/ha post-emergence + isoxaflutol 240 g/l Ciprosulfamida (safener): 240 g/l at a dose of 0.15 l/ ha post-emergence] 96%. Of all the tested variants, the variant with the application of 312.5 g/l S-metolaclo; 187.5 g/l terbutilazin herbicides (4.0 l/ha) + isoxaflutol 240 g/l; Ciprosulfamida (safener): 240 g/l (0.3 l/ha) in pre-emergence, with a high level of production, which does not allow its recommendation in weed control in chickpeas.