@article {711, title = {Tree crop based agroforestry in Nigeria: A checklist of crops intercropped with cocoa}, journal = {Agroforestry Systems}, volume = {11}, year = {1990}, month = {September 1990}, pages = {227-241}, abstract = {A survey of cocoa farmers in Bendel, Ogun, Ondo and Oyo States of Nigeria, carried out in 1985, showed that almost all the farmers intercropped other crops with cocoa. The intercrops included food crops such as plantain (92.3), cocoyam (85.7\%), cassava (51.3\%), yam (41.3\%), maize (38.9\%), melon (31.4\%), cowpea (28.6\%) and pineapple (26.0\%) and tree crops such as oil palm (71.5\%), kola (67.3\%), coffee (41.0\%), coconut (7.9\%) and citrus (7.2\%). Other crops are ewe-iran (Sarcophrynium brachystachys) and ewe-gbodogi (Megaphrynium macrostachyum) (45.2\%), african walnut (Tetracarpidium conophorum) (42.2\%), aligator pepper (Aframomum melegueta) (31.6\%), and iyere (Piper guinense) (20.2\%). Guava, mango, pawpaw and vegetables such as celosia, okra and solanum occur in cocoa plots at rather low frequencies. As many as six or more other crops can be intercropped with cocoa at the same time.}, keywords = {agroforestry, cocoa belt, crop combination, food crops, medicinal plants, tree crops}, doi = {10.1007/BF00045901}, url = {https://doi.org/10.1007/BF00045901}, author = {M. A. O. Oladokun} } @book {337, title = {Glossary of selected terms in sustainable agriculture}, series = {Gatekeeper Series no. SA6}, year = {1988}, month = {August 1988}, pages = {19}, publisher = {International Institute for Environment and Development, Sustainable Agriculture Programme}, organization = {International Institute for Environment and Development, Sustainable Agriculture Programme}, address = {London; Washington, DC}, abstract = {A glossary of selected terms in sustainable agriculture}, keywords = {agroecological zoning, agroecosystem zoning, agroecosystems, agroforestry, alley cropping, appropriate technology and intermediate technology, bioenergy, biomass, carrying capacity, cash crops, common property resources, community forestry, conservation farming, desertification, export crops, farmer participatory research, farming systems research , food crops, genetic preservation, integrated pest management, integrated rural development, land degradation, minimum tillage, multiple cropping, multipurpose trees, open access resources, pastoralism, range management, rapid rural appraisal, regenerative farming, remote sensing, share cropping, shifting cultivation, social forestry, subsistence agriculture, sustainable development, tragedy of the commons, transhumance}, url = {http://www.worldcat.org/oclc/19531919}, author = {Jennifer A. McCracken and Jules N. Pretty} } @article {565, title = {Food, coffee and Casuarina: An agroforestry system from the Papua New Guinea highlands}, journal = {Agroforestry Systems}, volume = {2}, year = {1985}, month = {December 1985}, pages = {273-279}, abstract = {An agroforestry farming system is described from the Papua New Guina highlands (1400 to 2100 m) that has been developed by village growers since about 1960 and has expanded rapidly since about 1970. Major components of the system are numerous species of annual and perennial food crops (especially bananas), arabica coffee and Casuarina oligodon. It provides food, a cash crop and timber for construction and fuel. It is likely that returns on labour inputs are very favourable, but no formal assessments have been made. Evaluation of the system as a whole, and research on certain key components (Casuarina ecology, banana cultivars, timing of operations) are suggested as high priority areas for systematic studies.}, keywords = {agriculture, Casuarina, coffee, food crops, forestry, highlands, Papua New Guinea}, doi = {10.1007/BF00147038}, url = {http://link.springer.com/article/10.1007/BF00147038}, author = {R. Michael Bourke} }