General Technical Documents
General Technical Documents are resources made available through ECHOcommunity.org that are not currently part of an ECHO periodical publication such as ECHO Development Notes or ECHO Technical Notes. These resources may or may not be published by ECHO, but have been made available to the ECHOcommunity as online, sharable resources.
83 Issues in this Publication (Showing 81 - 83) Previous
African Farm Management - 1988-01-19
Farm management is the study and application of the principles of economics, management, and agriculture to farm production within a particular environment. A farm management text written for an African audience, therefore, includes management and economic principles and applications from the African cultural system.
Permaculture in Humid Landscapes - 1981-01-19
The humid landscape is water controlled, and unless it is an extremely new landscape- volcanic or newly faulted--it has softly rounded outlines. When you are walking up the valley, or walking on the ridge, observe that there is a rounded 'S' shaped profile to the hills.
Where the landscape turns from convex to concave occurs a critical point that we call a keypoint.*
Outlines of Perennial Crop Breeding in the Tropics - 1969-01-19
In predominantly agricultural tropical countries the need to raise the production of good-quality foodstuffs and raw material is today greater than ever. The rise in production efficiency, so essential for our very existence, can be obtained only partly by improved cultural practices, increased use of fertilizers and better plant protection. It is now generally recognized that local varieties adapted to traditional cultural methods often fail to respond favourably to improved growing conditions. Therefore plant breeders have a most important part to play in the total effort. The greatest challenges and opportunities await them in the tropics. There the developments in agriculture and horticulture could be dramatic, provided that the planting material which is made available to the grower consists of genotypes giving the best results under the new conditions.
In tropical agriculture and horticulture perennial crops occupy an important place. In several of them, especially in plantation crops, much effort has been given to improve the plants by careful selection and breeding. Some breeding programmes have been going on for many years and have considerably increased the yield and improved the quality of the product.
