id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72083	Mäntylahti, Väinö	Determination of plant-available manganese in Finnish soils 	1981	118	.pdf	application/pdf	53680	2975	68	The Department of Soil Science, Agricultural Research Centre, Tikkurila, has provided me with the opportunity to carry out the experiment concerning effects of microbiological activity and organic matter on the extractability of soil manganese. A cation exchange resin method was developed for extracting soil manganese.	cache/afs-72083.pdf	txt/afs-72083.txt