This new addition to the Agrodok collection describes various ways to combine fish culture with crop cultivation and livestock, in order to optimise farm output. For example, animal manure and composted vegetable residues can be used to fertilise a fish pond and increase the amount of food available to the fish. The pond lining can later be used as a source of fertiliser for cultivated land. The manual, which also offers guidelines for the selection of fish species, and which vegetables to use as fish food, is aimed at extension and field staff who work with farmers. It makes an excellent companion volume to Agrodok 15 (CTA number 724) which describes the construction and management of a fish pond (see Spore 65, p.13). Agrodok 21, Co-pub...