During 2012 and 2013 seasons soil mulching with black polyethylene sheets and sawdust, chemical control with Round up, hand hoeing as well as application of humic acid and EM1 were examined for their positive action on killing weeds and improving yield and quality of Red Globe grapes.
Results revealed that soil mulching with black polyethylene sheets or sawdust, chemical control and hand hoeing either applied alone or in combined with application of humic acid and EM1 was very effective in reducing dry weight of annual weeds and enhancing growth characters, nutrients in the leaves, yield as well as physical and chemical characteristics of the grapes in relative to control. The best means for controlling weeds and improving productivity of the vines was soil mulching with black polyethylene sheets followed by sawdust, hand hoeing and chemical control, in descending order. Controlling weeds by weeds control treatments along with application of humic acid and EM1 was superior than using weed control treatments alone in this respect
Soil mulching with black polyethylene sheets as well as application of humic acid and EM1 each at 5 ml per vine is suggested for controlling weeds and improving productivity of Red Globe vineyards