Phosphorous Sorption Characteristics of Soils in Smallholding Land Use in Southern Ethiopia

Table 1

Significance levels from the ANOVA analyses of clay, pH, available P(AP), CEC, Al oxalate (Al_ox), Fe oxalate (Fe_ox), Mn oxalate (Mn_ox), Al dithionate (Al_d), Fe dithionate (Fe_d), Mn dithionate (Mn_d), crystalline of Al oxides (c-Al), crystalline of Fe oxides (c-Fe), crystalline of Mn oxides (c-Mn), and iron activity (Fe_ox/Fe_d) by site, land uses, and their interaction.

Source of variation

DF

Clay

pH

SOC

AP

CEC

Alox

FeOx

Mnox

Ald

Fed

Mnd Feox/Fed

Site

1

ns

ns

ns

ns

ns

ns

Land use

3

ns

Site  land use

3

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

Note:  = p ≤ 0.05 is significant;  = p < 0.01 is highly significant, ns = nonsignificant.