VARIABLE;METH_DESCR;UNIT Species;"Vegetation was sampled in 10 quadrats (from Q01 to Q10) - 50 cm x 50 cm; quadrats were located along a transect (R) and were 5m distant from one another; transect was placed in the center of the crop field. Coordinates are provided only for the first quadrat R0X Q01. Vegetation surveys were conducted in 1994 and 2015, exclusively between May and July.";NA Dominant species;"Vegetation was sampled in 10 quadrats (from Q01 to Q10) - 50 cm x 50 cm; quadrats were located along a transect (R) and were 5m distant from one another; transect was placed in the center of the crop field. Coordinates are provided only for the first quadrat R0X Q01. Vegetation surveys were conducted in 1994 and 2015, exclusively between May and July.";NA Cover;Percent cover of all plant species was recorded per quadrat, except in 2014 (only the dominant species as well as the total species richness were recorded);% Total species richness of weeds;Richness calculated per quadrats;NA Monocot species richness;Richness of monocotyledon species recorded per quadrat;NA Dicot species richness;Richness of dicotyledon species recorded per quadrat;NA Dicot and Juncacea cover;Percent cover of Dicotyledon and Juncacea species was recorded per quadrat;% Total cover of weeds;Percent cover of weeds was recorded per quadrat;%