Variable

Land use

Pr > F

Agriculture

Rangeland

Forest

SOC (%)

1.14^c

1.45 ^b

2.13^a

0.0001

Total N (mg/kg)

0.14^b

0.14^b

0.18^a

0.0321

Avail. P (mg/kg)

15.72^a

11.44^b

11.38^b

0.026

Exc. K (mg/kg)

342.5 ^a

375.5^a

374. 5^a

0.218