id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72357	Niskanen, Raina	Extractable aluminium, iron and manganese in mineral soils: III Comparison of extraction methods	1989	9	.pdf	application/pdf	4717	306	71	Surface soils 53 26 11 1—59 18 14 4—71 66 38 12—222 Subsoils 49 23 13 2—72 15 14 1—59 55 37 6 190 lation coefficients for the relation between the EDTA-extractable Fe (2), the clay content (3) and the organic carbon content (4) were; r23.4 r24.3 0.37** o.6o*** In clay and silt soils, the EDTA-extractable manganese correlated weakly with soil pH (r = 0.39*) and in coarse soils with the clay content (r = o.4s***). The purpose of this paper was to compare the release of soil aluminium, iron and manganese by different extraction methods and to study the relationship of metals to soil particle-size distribution, organic carbon content and pH. 89 JOURNAL OF AGRICULTURAL SCIENCE IN FINLAND https://www.c-info.fi/en/info/?token=GhQhgGjWFZkjPwdi.S3AM28Tc5B1_ZEd5CzUd0w.MOp_cHdqL19XZXhjxkxwhfemJ3IUAw6gTvaPmjMT2u3Rf1Ow0kdLXQlLtGt1cLE9JkNw-zbHdI3oveAX0NSZf4HkvYolRSgYeYSEN0U9cCfgkYIlf6LeghiGMINxopZ9H-Km3-xRXlAQB_2sKeEegqXprKrIJbFYH2D14w Material and methods The material of 102 mineral soil samples was collected in 15 localities mainly in south- ern Finland (Table 1).	cache/afs-72357.pdf	txt/afs-72357.txt