Zaï Composting

9th March 2018

The idea came from Yacouba Sawadogo via Alessandro Ardovini and was implemented by Marc Haetjens. We made 30cm circular holes in the ground, filled them with kitchen waste that would normally go on the compost heap, and let the combination of moist food, trapped rainwater, provide a nutritious place for plants to grow. We seeded green manure in each zaï and gave each one a heavy mulch of straw. The holes are about 20cm deep which means that there is enough decompacted healthy soil being made in this area to plant a squash garden. We are choosing to plant from the squash family as the area is in zone 2 and we want something low maintenance. When we left site in October 2017 we had filled about 30 zaïs and we will see what is growing there when we go back next week!!!

Here is a video about how to use a zaï!! Essential knowledge for anyone who comes to volunteer with us!!