Table 5 Dataset features description.

From: Predicting land suitability for wheat and barley crops using machine learning techniques

No

Symbol

Feature full name

Type

Description

1

Soil texture

Soil texture(class)

Nominal

It shows the proportional content of particles of different sizes

2

Mean-min temp

Mean minimum temperature(°C)

Numeric

Indicates the mean minimum temperature(c0) in the study area

3

Mean-max temp

Mean maximum temperature(°C)

Numeric

Indicates the mean maximum temperature(c0) in the study area

4

Annual rainfall

Annual rainfall(mm)

Numeric

Indicates the amount of annual rainfall(mm) in the study area

5

Soil depth

Soil depth(cm)

Numeric

Defines the depth of the soil from where the crops satisfy their water and nutrient demands

6

Slope

Slope (%)

Numeric

(With ranges)

It makes a kind of topographic difference in the landscape. Ranges are decomposed into min & max slope in the dataset

7

PH

Soil reaction power

Numeric

It is used to measure the amount of alkalinity and acidity of the soil

8

EC

Soil electronic conductivity

Numeric

This shows the level and the ability of the soil water to transmit an electric current. It measured by unit of decisiemens per meter (dS/m)

9

K

Potassium (Meq/100 g)

Numeric

Important macronutrient for plant growth

10

CEC

Cation exchange capacity

Numeric

It measures the ability of soil to grip positively charged ions. Measured in cent moles of charge per kilogram of the exchanger (cmol ( +)/kg)

11

T_N

Total nitrogen (%)

Numeric

The most plentiful element in the atmosphere, and is usually the most limiting crop nutrients

12

O_M

Organic carbon (%)

Numeric

Parts of soil containing plant, and animal detritus at a different stage of decay

13

AV_P

Available phosphorus

Numeric

It is the amount of phosphorus readily available for nutrient absorption by the plant roots. Measured in parts per million (ppm)

14

Crop name

Crop name

Nominal

Shows Wheat & Barley crop

15

Sodicity

Soil sodicity (ESP)

Numeric

It is the proportion of high sodium ion in the soil

16

Suitability classes

Land suitability classes

Nominal

Target classes containing S1, S2, S3, N1 & N2 according to FAO classification