After researching, Agreso uses volcanic soil of Vietnam highlands for growing gingers because these soil make ginger grow in best quality.

The ginger soil must be spongy, moist, and well-drained. The soil is
plowed 25 – 30cm deep, dried, tilled to mash and then onto the bed. Ginger is a light-loving plant, but it is also able to tolerate shade.

Set the ginger seed (root) in the soil, distance about 40-50cm per root

Cover roots by soil and rice straw, coffee husk

Water and maintain moisture daily

Using cow manure traditionally composted by Agreso. Agreso ginger is free of pesticides & chemical fertilizers.