Amaranth to Zai Holes, Ideas for Growing Food under Difficult Conditions (ECHO, 1996, 397 p.): 4: Multipurpose trees

Amaranth to Zai Holes, Ideas for Growing Food under Difficult Conditions (ECHO, 1996, 397 p.)

4: Multipurpose trees

		(introduction...)
		Trees in agricultural systems
		Multipurpose trees
		Fruit and nut species
		Working with trees