Acidifying peat as an aid to the reconstruction of lowland heath on arable soil: a field experiment

agrostis agrostis capillaris agrostis gigantea amendement du sol arable soils betula pendula calluna vulgaris cirsium cirsium arvense corte cutting deschampsia enmiendas del suelo escarda festuca ovina gramineae grazing malezas mauvaise herbe pastoreo peat plant competition poaceae rubus fruticosus soil amendments sol arable suelos cultivables tourbe turba urtica dioica weed control weeds