Composition analysis of weed species based on an example of one rural district of Podlaskie province

摘要

Field observations were conducted in the Dobrzyniewo Duze district, in Podlaskie, Poland, and 92 phytosociological surveys were done on cereals where 79 weed species occurred. Most of these weeds (65) were found in winter rye and the most common were Polygonum convolvulus (77), Elymus repens (67), Apera spica-venti (59), Matricaria inodora [Matricaria perforata] (54), Setaria glauca [Setaria pumila] (49), Convolvulus arvensis (48), Avena fatua (47), Centaurea cyanus (46) and Rumex acetosella (45). Stachys palustris, Ranunculus repens, Lamium amplexicaule, Anagallis arvensis, Taraxacum officinale, Tussilago farfara, Matricaria discoidea [Chamomilla suaveolens], Juncus bufonius, Symphytum officinale and Alopecurus myosuroides occured to a lesser extent. The greatest number of phytosociological surveys (71%) were done on loamy sand..