id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71727	Erviö, Raimo; Mäkitie, Osmo	Studies on the effect of clay and organic matter contents on the determination of cation exchange properties in clay soils by the ammonium acetate and methylene-blue methods	1969	9	.pdf	application/pdf	4013	224	72	1 The studies have been continued in the present work, where results of both methods are compared in a soil sample material of clay soils, particularly with respect to the effect of the mineral and humus content in soil on the values of the total cation exchange capacity and on the mutual ratios between the exchangeable metallic cations. Detailed data of sample material grouped on the basis of decreasing clay content are presented in Table 1.	cache/afs-71727.pdf	txt/afs-71727.txt