id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71979	Hartikainen, Helinä	Leaching of plant nutrients from cultivated soils: I Leaching of cations 	1978	7	.pdf	application/pdf	2735	146	64	On the bottom of each lysimeter was placed 270 g of washed coarse sand and the air dried and crushed, but unsieved, soil samples were added as small portions: 1 900 g of sand soil, 1 600 g of fine sandand 1 900 g of sandy clay. On the basis of a correlation analysis he claims that the bulk of inorganic material in river waters is derived from clay soils.	cache/afs-71979.pdf	txt/afs-71979.txt