Variable | Unit | Optimal | Suboptimal | No suitable |
Climate | Types* | Bs, Aw, Cf, Cs, Cw | ||
Average annual temperature | ˚C | 25 - 30 | 11 - 25 30 - 40 | <11 >40 |
Altitude | m | 0 - 600 | 600 - 1000 | >1000 |
Average annual precipitation | mm | 600 to 1200 | 400 to 600 1200 to 1500 | <400 >1500 |
Soil | Types | - Fluvisols - Luvisols - Nitisols - Regosol | - Cambisols | - Solonchaks - Flooding Gleysols - Flooding Vertisols - Leptosols - Acrisols - Planosols - Histisols - Calcaric Regosol - Kastañozems - Andosols |
Soil texture | Types | Light and medium | Medium | Heavyand very light |
Soil depth | m | ˂1 | 1 to 0.20 | ˂0.20 |
Soil pH | Indicator | 7.0 to 8.5 | 5.5 to 7.0 8.5 to 9.0 | ˂5.5 ˃9.0 |
Drainage | Types | Good | Good | Deficient |