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Applied Biological Chemistry

Table 1 Physicochemical properties of soil before the pot experiment

From: Effects of brewer’s spent grain biochar on the growth and quality of leaf lettuce (Lactuca sativa L. var. crispa.)

Sample

Texture (%)

pH (1:5 H2O)

EC (dS m−1)

Av. P2O5 (mg kg−1)

Elemental content (%)

OM (%)

Exchangeable cations (cmolc kg−1)

Sand

Silt

Clay

C

N

K+

Ca2+

Mg2+

Soil

74.72 ± 3.00

10.67 ± 1.15

14.61 ± 1.15

6.16 ± 0.03

0.18 ± 0.01

498.81 ± 13.43

0.07 ± 0.00

0.00 ± 0.00

0.12 ± 0.00

0.23 ± 0.01

9.64 ± 0.30

6.06 ± 0.17

  1. EC electrical conductivity, Av. P2O5 available P2O5, C carbon, N nitrogen, OM organic matter
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