Variable

Condition

Unit

Optimal

Suboptimal

No suitable

Average Annual Temperature

˚C

25 - 32

20 - 25

32 - 35

<20

>35

Altitude

M

0 - 1000

1000 - 1400

>1400

Average Annual Precipitation

mm

1400 - 2500

800 - 1200

2500 - 3000

<800

>3000

Soil

Type

Gleysols

Vertisols

Fluvisols

Luvisols

Nitisols

Andosols

Cambisols

Regosols

Solonchaks

Leptosols

Arenosols

Calcisols

Soil Texture

Type

Loamy-Clayey

Loamy-Clayey-Sandy

Sandy and Clayey

Soil Depth

M

>1

1 - 0.5

<0.50

Soil pH

Level

5 to 6

4.0 - 5.0

6.0 - 7.5

<4.0

>7.5

Soil Drainage

Type

Good

Regular

Deficient