Preliminary results regarding weed management in fruit tree nursery regarding monocotyledonous poaceae weeds at apple species (Malus Domestica, Borkh)

Abstract

The field trial was established at Fruit Research Station Bistrita in a sandy-loam site, with optimum rainfal and thermal conditions in 2016. The main objective of the study was the applying of integrated weed management techniques in fruit nursery. The experimental design was polyfactorial and consisted in the application of two non selective herbicides with active compounds quizalofop p-tefuryl 40 g/L and glifosate acid 360 g/L at rootstocks M106,M26,M9 using two different leaf fertilizers in first year of rootstock development (Field 1). Main observed weeds were: Avena fatua, Lolium temulentum, Echinochloa crus galli, Setaria glauca, Agropyron repens. Control variant consisted in the applying of perforated black agro-textil mulch in the rootstock zone. Herbicides were applied using a conical PVC protection not to damage the main rootstocks during sprays. Research results showed that the applyed herbicides and the control variant had different effects on roostock growth