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Table 2 Physical and chemical properties of the soil

From: The synergistic effect of biochar and poly(2-ethyl-2-oxazoline)/poly(2-hydroxyethylmethacarylate)/chitosan) hydrogels on saline soil properties and carrot productivity

Chemical properties of soil

Available macronutrients (mg.kg−1)

pH (1:2.5 soil suspension)

EC dSm−1 (1:2.5 soil extract)

OM (%)

CEC (cmolc kg−1)

EX. Na cmolc kg−1))

ESP (%)

N

P

K

7.70 ± 0.01

5.40 ± 0.04

0.30 ± 0.01

3.15 ± 0.02

0.30 ± 0.02

9.52 ± 0.30

55.0 ± 1.3

11.20 ± 0.6

78.0 ± 1.7

Physical properties of soil

Texture class

BD (Mg.m−3)

Porosity (%)

FC (%)

WP (%)

AW (%)

WHC (%)

Particle size distribution%

Sand

Silt

Clay

1.60 ± 0.01

39.62 ± 1.6

10.20 ± 0.9

3.45 ± 0.1

6.75 ± 0.5

23.0 ± 1.9

73.0 ± 0.5

17.50 ± 0.2

9.50 ± 0.03

Loamy sand