id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71982	Aura, Erkki	Determination of available soil phosphorus by chemical methods 	1978	12	.pdf	application/pdf	5039	357	70	Also, numerous other factors such as, for exam- ple, the growth of the root system and weather conditions have an effect on the uptake of soil phosphorus. JOURNAL OF THE SCIENTIFIC AGRICULTURAL SOCIETY OF FINLAND Maataloustieteellinen A ikakauskirja 305 Vol. 50:705-716, 1978 Determination of available soil phosphorus by chemical methods Erkki Aura Department of Agricultural Chemistry, University of Helsinki, 00710 Helsinki 71 Abstract.	cache/afs-71982.pdf	txt/afs-71982.txt