World Bank Technical Paper Number 170 Africa Technical Department Series The study was part of a program of research into the future directions of livestock production, agricultural development, and resource management in Sub-Saharan Africa, carried out by the AgricultureDivision of the World...
The purpose of this book is to provide the best and most up-to-date information available to the primary users of this book --the Florida vegetable industry. The book is divided into crops and illustrations.
The purpose of this book is to provide the best and most up-to-date information available to the primary users of this book--the Florida vegetable industry. The book is divided into safety, disease, crops, and illustrations.
The purpose of this book is to provide the best and most up-to-date information available to the primary users of this book--the Florida vegetable industry. The book is divided into safety, marketing, crops, and illustrations for 2004-2005.
关键资源2007-05-25 This handbook of locally based agricultural practices brings together the best of science and farmer experimentation, vividly illustrating the enormous diversity of shifting cultivation systems as well as the power of human ingenuity. Environmentalists have tended to disparage shifting...
关键资源1989-03-01 Indigenous knowledge systems permeate all that we do and think and believe, The have evolved from years of experience and trial-and-error problem solving by groups of people working to meet the challenges they face in their local environments, drawing on the the resources they have at hand.