1. Ground water level: more than 1.5m.
2. Soil texture: permeablility or breathability good loam and sand soil, avoid clay, harden, ventilation adverse soil.
3. PH of soil, 6-7.5 is the best, 5-8.9 is acceptable.
4. Good irrigation and drainage systerm will be better.
5. Elevation up to 2000m is acceptable
