Distribution of height and developmental stage of Sonchus arvensis in different crops - some preliminary results - Vanhala, Petri; Lötjönen, Timo; Salonen, Jukka (dk, 2002)
Keywords: Ta; kuituhamppu; peltovalvatti; Sonchus arvensis; rikkakasvit; mekaaninen torjunta; kesannointi; niitto; haraus; ohra; hamppu; weeds; mechanical methods; mowing; hoeing; barley; hemp; perennial sowtistle; mechanical control; fallowing; fiber hemp