id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-5648	SIPPOLA, J.	Estimation of soil nitrate in the spring as a basis for adjustment of nitrogen fertiliser rates	2000	7	.pdf	application/pdf	3019	164	58	Computer simu- lation of changes in soil nitrogen during under a crop of winter wheat. In Central Europe the so called Nmin-method is used to analyse soil mineral nitrogen and to adjust ni- trogen fertilisation accordingly (Wehrman and Scharpf 1979).	cache/afs-5648.pdf	txt/afs-5648.txt