TABLE 2.

Selected results for chemical analyses of soils from EMBRAPA, Parãna, Brazil^a

Site	pHb	Water contentc	Organic content (%)d
Soybean plot, tilled	5.2	34.0	0.52
Soybean plot, not tilled	5.2	38.6	0.79
Pasture	5.1	30.5	0.34
Unmanaged woodlot	5.3	74.7	1.70

^aValues are means of duplicate determinations.

^bDetermined from 1:1 slurries of deionized water and fresh soil.

^cGrams of water per gram (dry weight) of soil.

^dGrams of organic matter per gram (dry weight) of soil times 100%.