Amelioration du tuteurage des tiges d' igname dans le champ.
1981
Wilson G.F. | Akapa K.
In vast areas of the humid and subhumid tropics, yam vines are supported on the in-situ pruned or killed stems of shrubs or trees selectively retained at bush-fallow clearing. Under natural regeneration, the land is left fallow for 5 or more years before it is cleared and selected stems are used as yam support. With selected species such as Leucaena leucocephala and Glyricidia sepuim, in-situ stem supports are available in 1-2 years. Arranging support plants in rows allows for uniform yam fields instead of the haphazard arrangement associated with bush fallow. An intensive system based on a rotation of maize and yam within the support species is envisaged.
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