id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72399	Halinen, Päivi; Raatikainen, Mikko	Seasonal dynamics and primary production of the flora in a winter rye field in Finland	1991	16	.pdf	application/pdf	7209	493	71	Number of seeds in the soil Research into the amounts of weed seeds in arable soils has mainly employed germination and washing flotation methods, and the differences between the methods used make comparison difficult. The result was lower than that reported by Paatela and Erviö (1971) in a spring cereal field or the proportion of weed seeds emerging in spring cereal fields and numbers of individuals reported by Mukula et ai.	cache/afs-72399.pdf	txt/afs-72399.txt