Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
This paper constitutes another part of the study ”Weed communities in agricultural fields in the of the Middle Vistula River mesoregion” and presents phytosociological classification and characteristics of phytocenoses growing in fields with root crops. To do the research, 131 phytosociological releves were taken and on this basis the communities were grouped into five associations: Digitarietum ischaemi, Echinochloo-Setartietum, Galinsogo-Setarietum, Oxalido-Chenopodietum polyspermi, Lamio-Veronicetum politae, and transitional community between alliances Panico-Setarion-Polygono-Chenopodion. The patches of the Echinochloo-Setarietum association were the most diverse floristically, thriving on soils of different mechanical composition and with a wide range of pH. In potato fields of the research area there was a large number of nitrophilous species, in particular in the Galinsogo-Setarietum communities. Considered to be an endangered species in Poland, Kickxia elatine was found among some of the patches of the Oxalido-Chenopodietum association. Among the communities studied in the research there were also patches of the Lamio-Veronicetum politae association, with the whole group of diagnostically important species.
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