Revista Brasileira De Herbicidas 2013; 12(2): 104-111
Desiccation species of ground cover with glyphosate formulations
The management of coverage species may be accomplished by mechanical or chemical methods. In chemical method nonselective herbicides are used mainly the ones belonging to glyphosate group. The objective of this study was to evaluate phytotoxicity and agronomic efficacy of two formulations with active ingredient glyphosate over desiccation in ground cover species. The present study was conducted in field conditions in Marechal Candido Rondon County, Parana State. Experimental design used was randomized complete blocks with four repetitions in factorial scheme 2×5 (formulations x species), in that the species were white oat, black oat, ryegrass, common vetch and oilseed radish, desiccated by two herbicides: Zapp Qi® (ZQ) and Glyphosate 480 Agripec® (GA). Phytotoxicity and agronomic efficacy of coverage species were evaluated. Zapp Qi® has provided greater phytotoxicity and agronomic efficacy of coverage species when compared to Glyphosate 480 Agripec®. Zapp Qi® at 32 days after desiccation presented the highest values of agronomic efficiency. The only specie that presented 100% of efficacy was oilseed radish.
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