id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72711	Erviö, Raimio; Hyvärinen, Seppo; Erviö, Leila-Riitta; Salonen, Jukka	Soil properties affecting weed distribution in spring cereal and vegetable fields	1994	8	.pdf	application/pdf	3621	228	65	Key words: Finnish fields, soil type, soil pH, soil organic matter content, soil extractable calcium Introduction A study was carried out in 1982 - 1984 to deter- mine the occurrence of weeds in Finnish spring cereals (Erviö and Salonen 1987) and vegetable fields. mineral soils soils mineral soils soils soils soils Chenopodium album L. 1 18 26 8 56 74 14 2.32 6.2* 2.1b 8.4* 4.8* 1.6b Elymus repens (L.) Gould 18 2 8 23 7 6 1.6* 0.5 b 1.2» 2.5» 0.8b 0.7 b Erysium cheiranthoides L. 16 4 9 9 3 2 I.l* 0.7 b 0.9*b 1.7* 1.0*b 0.9b Fallopio convolvulus (L.) Love 3 7 2 4 13 0.9 b 1.7* 0.8 b 0.6 b 0.5 b 1.5» Galeopsis spp, L. 8 17 25 5 4 12 2.0b 3.6“ 3.4* l.0b 0.9b 2.0* Galium spp.	cache/afs-72711.pdf	txt/afs-72711.txt