id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72907	Kauppila, Raimo	Conventional and organic cropping systems at Suitia IV: weeds	1990	7	.pdf	application/pdf	3386	189	66	Weed control In conventional cropping weeds were con- trolled with herbicides, while no chemicals were used in organic cropping. In organic cropping, the number of most weeds in weed species increased from the level for 1982.	cache/afs-72907.pdf	txt/afs-72907.txt