Effects of Traditional Tillage, Conserved Tillage and No Tillage Methods and Some Allelopathic Practices on Weed Growth in Organic Vineyards

Abstract

This study was carried out to determine the effects of some tillage methods; it included conventional tillage and conservation tillage with some weed control applications on weed manifestation in organic vineyards. The organic vineyard experiment area was designed as main and sub-plots. The effects of some methods of conventional tillage, no-tillage, and conservation tillage on weed coverage, densities, fresh weight, and dry weight were determined in the organic vineyard experiment area. These tillage methods were applied in the main plots. A chisel and heavy-duty disk harrow were used for conservation tillage methods. The plough and disc harrow were also applied as conventional methods. Other allelopathic methods (olive mill wastewater, radish (Raphanus sativus L.), and broccoli (Brassica oleracea L.) were applied as sub-plots in the experiment area. As a result of the statistical analysis of the values obtained in the study, the most effective method, the application of the plough and disc harrow, was determined for weed coverage and fresh and dry weight weeds in the main plots. The olive mill wastewater was also determined as the most effective application in the sub-plots. In terms of grape yield, the most effective method in the main plots was the plough + disc harrow application (6.8068 kg vinestock‒1). The planting of broccoli (6.4485 kg vinestock‒1) was determined as the most effective sub-plot application for grape yield.