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Researches regarding glyphosate effectiveness on the degree of weed control in grape plantation

Author(s): Monica NEGREA | Gheorghe CARCIU | Ersilia ALEXA | Aurel LAZUREANU | Andreea SFETCU

Journal: Analele Universitatii din Oradea, Fascicula Biologie
ISSN 1224-5119

Volume: TOM XVII;
Issue: 2;
Start page: 239;
Date: 2010;
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Keywords: glyphosate | grape plantation | weed control degree

In this paper was determined the control degree of weeds in grape plantation, Burgund variety, when is using chemical treatments with herbicides and agro-technique measures. Herbicide used was Roundup 3 l/ha and 4l/ha (glyphosate isopropyl amine salt 360 g/l) applied in 4 experimental variants. It was determined the weed presence degree, the type of weeds destroyed and the degree of their participation. Predominant weed species in studied grape plantation, were: Agropyron repens (20.15%), Geranium dissectum (17.91%), Capsella bursa pastoris (15.67%) and Avena fatua (13.43%). Ephemeral weeds Veronica hederifolia and Stellaria media had a participation rate of 8.96%. Perennial weeds represented 40.30% while annual weeds are 59.70% . The herbicide Roundup provides most effective control in a dose of 3 or 4 l/ha, combined with mechanical weeding + 1 manual weeding, control rates being over 90%.
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