Look into Vandanva Shiva's work and her promotion of the use of neem seed for
household and agricultural use.
She might have other information that applies to your situation.
Here's a book that might interest you written by Paolo Soleri's daughter:
"Food From Dryland Gardens. An ecological, nutritional and
social approach to small-scale household food production"
by David A. Cleveland and Daniela Soleri
Illustrated by Daniela Soleri
1991
Center For People Food and the Environmant
Tuscon, Arizona, USA, CFPE
With support from UNICEF
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