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Table 2 Comparison on soil nutrient concentration between Oxytenanthera abyssinica and Dalbergia melanoxylon trees of under, near, and far to canopy

From: Dispersed trees on smallholder farms enhance soil fertility in semi-arid Ethiopia

Radius from the tree (m) OC% TN% AvP EC CEC pH C-to-N
Under canopy *** *** * ** *** *** 0.082
Near to canopy *** ** ** *** *** *** 0.143
Far from canopy *** *** * **** ** * 0.240
  1. Note: Rows with the same superscript letters are not significantly different at P < 0.05, * are given when P values less than 0.05, ** are given when P values less than 0.01, and *** are given when P values less than 0.001
  2. OC % organic carbon percent, Total N% total nitrogen, Available P (ppm) available phosphorus, EC (dS/m) electrical conductivity, CEC meq/100 g cation exchange capacity