Production constraints on cocoa agroforestry systems in West and Central Africa: The need for integrated pest management and multi-institutional approaches

2005 ◽  
Vol 81 (3) ◽  
pp. 345-349 ◽  
Author(s):  
Denis J Sonwa ◽  
S. Weise ◽  
A. Adesina ◽  
A B Nkongmeneck ◽  
M. Tchatat ◽  
...  

Cocoa-producing countries of West and Central Africa experienced a serious economic crisis in the early 1980s,when the cocoa sector was liberalized and the macroeconomic policies of the sector changed. These institutional changes created new difficulties and challenges for sustainable cocoa farming. Farmers in this region have recently turned to timber and non-timber production to offset the fluctuation of cocoa prices. In a survey of 300 cocoa farmers in the humid forest zone of Southern Cameroon, pest and disease outbreaks were identified as the major limiting factors to sustainable cocoa production. An analysis of pests and diseases affecting the cocoa plantations in the humid forest zone of West and Central Africa revealed strong links to the type of forest cover found on or near the cocoa plantation. An integrated approach to pest management is proposed and the paper concludes with a discussion of current efforts to address constraints posed by pests and diseases on sustainable cocoa farming in the four main cocoa-producing countries of West and Central Africa. Key words: cocoa agroforest, farmer perception, forest landscape, multi-disciplinary approach, multi- institutional approach, Africa

1970 ◽  
Vol 29 (4) ◽  
pp. 483-496
Author(s):  
N.J. Anyanwu ◽  
O.S. Onifade ◽  
J.A. Olanite ◽  
V.I.O. Olowe ◽  
B.O. Boukar ◽  
...  

The availability of high quality forage, especially during the dry season remains a major challenge to ruminant livestock production in Nigeria and many parts of West Africa. This study was conducted to evaluate forage yield and nutritive quality of haulm from selected dual purpose cowpea (Vigna unguiculata L. Walp.) cultivars in the humid rain forest zone of Nigeria. The forage and pod yields of twenty cultivars were evaluated at the Teaching and Research Farm of the Federal University of Technology, Owerri, Imo State, Nigeria. Subsequently, five dual-purpose cultivars, namely IT04K-334-2, IT07K-293-3, IT04K-194-3, IT04K-405-5, IT06K-147-2, were selected based on forage and pod yields from previous trial, for determination of chemical and fibre compositions. The results revealed significant (P<0.05) differences in pod and forage yields among the twenty cowpea cultivars, with yields ranging from 0-1.5 t ha-1 and 0.1-4.5 t ha-1 for pod and forage, respectively. Cultivars IT07K-293-3, IT04K-405-5, IT06K-147-2, IT07K-194-3, IT04K-334-2, IT04K-267-8 and IT04K-339-1 recorded the highest fodder yields of at least 2715 t ha-1, with crude protein contents ranging from 10.49% in IT07K-194-3 to 13 .57 % in IT04K-405-5. Cultivars IT07K-194-3, IT07K-293-3, IT07K-220-1-9, IT06K-147-2, IT07K-187-55IT04K-332-1 recorded the highest pod yields (>700 t ha-1). There were significant (P<0.05) differences in crude protein, ether extract and non-fibre carbohydrates (NFC) contents among five cultivars selected from the top ten high yielding cultivars, based on mean ranking score. These selected cultivars are recommended as dual-purpose cowpea for the humid forest zone.


2002 ◽  
Vol 46 (1) ◽  
Author(s):  
Jan Peter Mund ◽  
Martin Doevenspeck

AbstractChances and problems of forest management and afforestation in the humid forest zone of the Ivory Coast: Far-reaching changes in the forestry legislation since 1994 force the timber companies in the Ivory Coast to carry out afforestation measures for and with the local population in their concession areas. By the example of one of the first pilot projects the authors analyse the execution of reforestation at a village level. From the view of pedology they discuss the restrictions of possible afforestation measures in the adjacent areas of a national park


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