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Chemical and Biological Technologies in Agriculture

Table 1 Relevant physical and chemical data for the profiles

From: Land evaluation for crop production in Upper Kabete Campus field, University of Nairobi, Kenya

Map unit Texture
Profile Horizon Depth S SI C TC pH EC %OC % N CEC BS%
UmIr/F 148/4-7 Ap 0–14 22 14 64 C 6.1 0.1 2.95 0.39 22.2 92
UmIr/E 148/4-5 A 0–16 26 8 66 C 5.6 0.2 3.18 0.35 15.6 90
148/4-6 A 0–33 30 22 48 C 6.2 0.1 4.03 0.49 27.6 94
AB 33–53 24 24 52 C 6.2 0.1 2.33 0.28 23.8 93
UxIr/D 148/4-2 A 0–23 31 30 39 CL 6.2 0.1 3.45 0.39 23.2 91
148/4-14 Ap 0–15 45 27 28 CL 5.7 0.1 2.55 0.2 20 70
148/4-4 A 0–27 32 22 46 C 6.4 0.1 3.8 0.42 27 93
AB 27–38 30 20 50 C 5.9 0.1 3.37 0.24 22 87
148/4-1 A 0–16 40 8 52 C 5.7 0.2 3.68 0.36 23 73
AB 16–35 32 14 54 C 5.9 0.1 2.25 0.35 21.8 60
UxIr/C 148/4-3 A 0–21 32 22 46 C 5.9 0.2 3.95 0.56 25.8 68
AB 21–45 30 20 50 C 6.6 0.1 2.17 0.24 21.8 91
148/4-8 Ap 0–17 47 23 30 SCL 5.9 0.2 3.14 0.34 21.2 92
148/4-9 Ap 0–21 51 27 24 SCL 5.4 0.3 3.3 0.32 24.4 52
148/4-11 Ap 0–25 30 30 40 CL 5.7 0.1 1.51 0.56 23 94
148/4-13 Ap 0–15 30 16 54 C 6.2 TR 1.99 0.28 19.2 92
AB 15–38 26 18 56 C 5.9 0.1 1.8 0.13 18.6 83
UxIr/AB 148/4-10 Ap 0–16 36 32 32 CL 6.3 0.2 2.05 0.27 16 91
AB 16–38 36 26 38 CL 6.6 0.1 2.13 0.22 26 95
148/4-16 Ap 0–25 44 24 32 CL 5.5 TR 2.4 0.22 20.4 93
AB 25–51 46 12 42 C 5.6 0.1 2.1 0.24 18.2 92
148/4-15 Ap 0–18 28 34 38 L 5.6 0.1 2.73 0.43 20.2 70
AB 18–45 28 30 42 C 6.4 TR 2.51 0.29 23.4 94
148/4-12 Ap 0–18 35 40 25 L 5.8 0.1 1.55 0.35 18 78
AB 18–32 41 32 27 L 5.9 0.1 1.24 0.43 21.4 72
  1. S sand, SI silt, C clay, TC textural class, pH potential of hydrogen, EC electrical conductivity, OC organic carbon, N nitrogen, CEC cation exchange capacity, BS base saturation
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