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Table 6 Effect of soil application of humic acid and bio-humic on N, P, K, Ca, and Mg leaf mineral content of Kalamata olive trees

From: Effect of soil application of humic acid and bio-humic on yield and fruit quality of “Kalamata” olive trees

TreatmentsN (%)P (%)K (%)Ca (%)Mg (%)
1st season2nd season1st season2nd season1st season2nd season1st season2nd season1st season2nd season
T1 = Control0.97 d1.00 d0.10 d0.11 d0.99 d0.96 d0.63 d0.65 d0.08 d0.09 d
T2 = Organic matter1.10 c1.24 c0.13 c0.15 c1.14 c1.16 c0.78 c0.77 c0.10 c0.11 c
T3 = T2 + humic acid1.46 b1.54 b0.17 b0.19 b1.23 b1.24 b0.98 b0.96 b0.13 b0.14 b
T4 = T2 + bio-humic1.92 a1.98 a0.19 a0.21 a1.35 a1.38 a1.19 a1.20 a0.17 a0.16 a
  1. Means within a column followed by different letter(s) are statistically different at 5% level