Tropicultura

Open Access ISSN 0771-3312 eISSN 2295-8010

1990 vol. 8 no 1

Deelstra H. — Food quality control in developing countries : luxury or necessity ?, p. 1-2.
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Original articles

Van den Berghe C., Theeten D., Totognon J. — Comparative responses of two maize varieties to fertilizers on a newly cleared ferralitic soil in Southern Benin. Economic analysis, p. 3-8.
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Lebailly P. — Concept of subsector, agro-industrial economies and development (Text in French), p. 9-14.
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Mafïkiri TN., Tshibaka TB. — Economie study of Chemical fertilizers use for cassava production (Manihot esculenta Crantz var. F 46) at Yangambi (Text in French), p. 15-18.
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Bell JG. — Prospects for the use of biotechnology for the control of Newcastle disease in Africa, Asia and South America, p. 19-20.
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Counet M., Van Damme P. — Identification and follow-up methods used in an integrated development project in Togo : from theory to practice (Text in French), p. 21-26.
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Technical notes

Obounou Zibi L. — Heat detection in ewe by acidity, elasticity of the cervical and vaginal mucus and by vaginal temperature measurement (Text in French), p. 27-30.
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Moreaux P. — Pig breeding in Haiti : a difficult choice ! (Text in French), p. 31-35.
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van Swinderen H. — Browse from trees and shrubs : fact or fiction ? (Text in French), p. 36-39.
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Mawuena K., Yacnambe MS. — Use of traps and screens in the control of animal trypanosomiasis in Togo (Text in French), p. 40-43.
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Mafwila M. — On the way to an appropriate feeding system for poultry and pigs in Zaire (Text in French), p. 44-45.
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Samba M. — Some considerations on restraining the decline in the rural population in the Popular Republic of Congo (Text in French), p. 47-49.
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Integration of livestock with crops in response to increasing population pressure on available resources, p. 50-50.
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Bibliography

p. 51-51.
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