EVALUATION OF THE EFFECTIVENESS OF DIFFERENT HERBICIDES IN COMBATING WEEDS IN BEAN (PHASEOLUS VULGARIS. L.) AND THEIR INFLUENCE ON YIELD

Alirami SALIJI, Valmir SALIJI, Bardhyl LIMANI, Zejnedije ADEMI, Hirijete IDRIZI, Besnik XHEZAIRI

Abstract

Even beans as an agricultural crop, among others, compete with different types of weeds. To find a solution for the reduction of weeds in the bean culture, in the locality Sellarcë e Eperme-Tetovo, in the Polog region, a field experiment was set up as a randomized block design with three repetitions and the size of the plot was 21 m2. In the experiment, the number of weeds per m2, the structure of weeds, the rate of appearance, the efficiency of herbicides, the impact on yield, and the phytotoxicity of herbicides on the bean plant have been studied. The following treatments were included in the experiment: pendimethalin 5.0 l/ha, linuron 2.5 l/ha dimethenamid-p+pendimethalin 3.5 l/ha, metobromuron 3.0 l/ha, dimethenamid+terbuthylazine 4.0 l /ha, metobromuron 4.0 l/ha, pendimethalin+linuron 5.0+2.5 l/ha, absolute controls, and mechanical controls. The results showed that the structure of the barrows consists of 8 types of barrows, of which one type is from the group of monocotyledonous barrows and seven types from the group of dicotyledonous barrows. The number of barrows was 627.7 plants/m2. The dominant weeds were: Solanum nigrum with 550.7 plants/m2 or 87.7%, Echinochloa crus-galli with 37.3 plants/m2 or 5.9%, and Amaranthus retroflexus with 22.3 plants/m2 or 3.5 %. The efficiency of herbicides in the fight against dicotyledon weeds was 83.3-96.4%, monocotyledon weeds 60.6-92.5%, and the overall efficiency was 83.0-96.2%. Regarding the phytotoxicity in the bean culture, no signs of phytotoxicity were observed from any of the herbicides used.

Pages: 23 - 27