Preface
The first 26 volumes in FAO's Better Farming Series were based
on the Cours d'apprentissage agricole prepared in Cd'Ivoire by the Institut
africain de dloppement nomique et social for use by extension workers.
Later volumes, beginning with No. 27, have been prepared by FAO for use in
agricultural development at the farm and family level. The approach has
deliberately been a general one, the intention being to constitute basic
prototype outlines to be modified or expanded in each area according to local
conditions of agriculture.
Many of the booklets deal with specific crops and techniques,
while others are intended to give the farmer more general information which can
help him to understand why he does what he does, so that he will be able to do
it better.
Adaptations of the series, or of individual volumes in it, have
been published in Amharic, Arabic, Bengali, Creole, Hindi, Igala, Indonesian,
Kiswahili, Malagasy, SiSwati, Thai and Turkish. This volume has been prepared by
the Inland Water Resources and Aquaculture Service, Fishery Resources and
Environment Division.
Requests for permission to issue this manual in other languages
and to adapt it according to local climatic and ecological conditions are
welcomed. They should be addressed to the Director, Publications Division, Food
and Agriculture Organization of the United Nations, Via delle Terme di
Caracalla, 00100 Rome,
Italy.