Table 1: Effect of the agro-ecosystems on the soil quality.

AES pH (H2O) NH4, ppm SOM, % P2O5, ppm K2O, meq 100 mL-1 Ca, meq 100 mL-1 Mg, meq 100 mL-1
A1 5.637a 121.583 14.650b 34.667a .164a 6.658 .737
A2 5.682a 114.417 16.108a 19.500b .194a 7.708 .700
A3 5.556b 116.000 16.227a 33.483a .123b 6.967 .617
SEĀ± .041 4.494 .541 3.332 .017 .542 .053
Sig. .016 .261 .011 .000 .001 .156 .089

n= 12, p < .05, means with different superscript in the columns showed differences [38], AES: Agro-ecosystems, A1: grasses and Alnus acuminata Kunth; A2: Grasses and Acacia melanoxylon A3: Rangeland

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