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Environmental Systems Research

Table 1 Selected properties of the soils

From: Effect of biochar derived from faecal matter on yield and nutrient content of lettuce (Lactuca sativa) in two contrasting soils

Soil

pH (H2O)

EC (dS/m)

Exchangeable cations (cmol(+)/kg)

 

CEC (cmol(+)/kg)

Olsen-P (ppm)

Total C (g kg−1)

Total N (g kg−1)

Particle size

Ca

Mg

K

Na

Al

% Sand

% Silt

% Clay

Soil 1

6.71

0.024

24.2

6.68

0.89

0.4

<0.02

32.2

27.7

19

1.8

19.1

73.6

7.2

Soil 2

6.86

0.006

4.2

1.14

0.25

0.02

<0.02

5.83

8.05

3.2

0.4

54.1

38.2

7.5

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