fotografías españoles - castellatatchildren
Groasis waterboxx planting experiment Castelltallat Spain May 2010
Pieter Hoff explains how to plant
The trial is planted at land owner Carles Brugueras
Explaining how to add the wick
This is how you plant the tree
Father is allowed to help son
The family learns from mother
The box is planted about 15 cm (4 inches) deep
Each family plants one box
After planting we give 20 liters (5 gallons) of water
Sixteen liters (4 gallons) in the box and we spill 4 liters (1 gallon) in the center