id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72910	Nuutinen, Visa; Haukka, Jari	Conventional and organic cropping systems at Suitia VII: Earthworms	1990	11	.pdf	application/pdf	5765	439	68	The differences between conventional and organic farming are potential effectors of earthworm abundance. Winter mortality of earthworms is known to be high in North- ern Scandinavia (Boström 1988), and a simi- lar reduction in earthworm abundance on arable land was observed elsewhere in South- ern Finland during the same period (personal observations).	cache/afs-72910.pdf	txt/afs-72910.txt