Manure of a farm near Havana, own production. This compost mixture consists of 75% (vermin-)compost and 25% rice husks. The mixture allegedly improves the structure of the soil and thus the water supply for the plants. The black cloths serve as sunscreen (to avoid overheating of the mixture).
Arnoud Joris Maaswinkel
CC BY-SA 4.0
Arnoud Joris Maaswinkel