Browsing 3. Scientific Journals / Naučni i stručni časopisi by Author "Dimitrova, Tsvetanka"
Now showing items 1-6 of 6
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Biological Efficacy of Herbicides for Weed Control in Noncropped Areas
Dimitrova, TsvetankaAn increasing problem facing agricultural producers is the invasion of weeds, perennial in particular, so that implementation of industrial technologies is impossible without their highly efficient and rational control. ... -
Chemical Control of Curled Dock (Rumex crispus L.) and Other Weeds in Noncropped Areas
Dimitrova, Tsvetanka; Marinov-Serafimov, PlamenRumex crispus L. is an invasive species widespread in our country and in particular in the region of North Bulgaria. It is characterized by high biological and ecological plasticity. Owing to its great reproductive ... -
Effect of Weeds and Some Methods for their Control in Seed Production Stands of Sainfoin (Onobrychis viciifolia Scop.)
Dimitrova, TsvetankaDuring the 2007-2009 period in the experimental field of the Institute of Forage Crops a study was conducted with the purpose of investigating the effect of weeds and some methods for their control in seed production ... -
Effects of Shepherd’s Purse (Capsella bursa pastoris (L.) Medic.) on the Chemical Composition of Lucerne (Medicago sativa L.)
Dimitrova, Tsvetanka; Marinov-Serafimov, PlamenA study was conducted in a pure stand of lucerne (variety Viktoria) under natural weed infestation with shepherd’s purse (Capsella bursa pastoris (L.) Medic.) on a slightly leached chernozem soil under nonirrigated ... -
Selectivity of Some Herbicides to Perennial ryegrass (Lolium perenne L.), Grown for Seed Production
Dimitrova, Tsvetanka; Katova, AneliyaDuring the period 2008-2010, on the experimental field of the Institute of Forage Crops – Pleven, on slightly leached chernozem a study was conducted with the purpose to determine the selectivity of some herbicides to ... -
Selectivity of Some Herbicides to Standard Wheatgrass (Agropyron desertorum (Fisch.) Schultes) During Stand Establishment and Seed Production
Katova, Aneliya; Dimitrova, TsvetankaA study was conducted in the experimental field of the Institute of Forage Crops – Pleven on a slightly leached chernozem soil in 2011-2012 to determine the selectivity of some herbicides to standard wheatgrass (Agropyron ...