Skip to main content

Table 11 Criteria (reclassification) for land suitability rating of malt barley crop in Ambesh watershed

From: Assessment of agricultural land suitability for cereal crops based on the analysis of soil physico-chemical characteristics

Land quality

Land characteristics

Unit

Suitability class

Highly suitable (S1)

Moderately suitable (S2)

Marginally suitable (S3)

Not suitable (N)

Climate (C)

Temperature (t)

℃

13.74–18

15–16

18–20.6

 > 28, < 10

Rain fall (rf)

mm

908–1200

1200–1250

1250–1302

 > 1330, < 500

Topography (T)

Altitude (alt)

masl

2300–2800

2800–3000

3000–3200

 > 3200

Slope (s)

degree

0–4.3

4.3–7.6

7.6–11.7

11.7–25.45

Physical soil properties

Soil texture (txr)

css

CL

C

–

–

Soil structure (str)

 

VF, F

F

M

C

Soil depth (dp)

cm

130–200

100–130

50 -100

 < 50

Chemical soil properties

Organic matter

%

4.1–5.13

3.4–4.1

2.7–3.4

1.5–2.7

Ele. conductivity

µs/cm

14.7–35.1

35.1–71.3

–

–

Soil pH:H2O

H2O

5.5–6.5

5.2–5.5

5.0–5.2

 < 5

CEC

meq/100 g

29.9–31.4

29.3–29.9

28.7–29.3

 < 28.7

Total N

%

0.285–0.235

0.235–0.185

0.185–0.135

 < 0.085

Phosphorous (P)

ppm

13.2

12.97- 13.2

12.76–12.97

12.5–12.76

Potassium (K)

ppm

–

–

0.5–0.577

–

CaCO3

%

20.3–21.8

21.8- 22.4

22.4–23.1

23.1–24.14

  1. Adapted from Bekele et al. (2005), Agegnehu et al. (2011); Füllner et al. (2012); Alemu 2015; Kidane (2022), Young and ISAACSON (1976); Landon (2014); FAO (1983), FAO (1984); FAO/UNDP (1989); Sys et al. (1991); Yizengaw and Verheye (1994); Assen and Le Roux (2005); Abate (2011)