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Library ResourceJournal Articles & BooksDecember, 1989
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Library ResourceJournal Articles & BooksDecember, 1989Japan, United States of America, Italy
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Library ResourceConference Papers & ReportsDecember, 1989
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Library ResourceReports & ResearchDecember, 1989
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Library ResourceConference Papers & ReportsDecember, 1989
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Library ResourceReports & ResearchDecember, 1989Colombia, Central America, South America
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Library ResourceConference Papers & ReportsDecember, 1989Colombia, South America, Central America
Important agronomic characteristics of common root and tuber crop production systems in the tropics are indicated for crops including cassava, yam, sweet potato, and edible aroids. Brief comments are also included on aspects that help correctly interpret the information obtained during the characterization process. The general context of agricultural production is analyzed, and within this context, the particular case of root crops, where the process of transformation into derived products, at both farm and regional levels, may condition the agronomic practices used.
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Library ResourceReports & ResearchDecember, 1989
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Library ResourceConstitutionDecember, 1989Algeria
President Liamine ZÂroual signed the constitution after it was approved by 85% of voters in a popular referendum.
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Library ResourceConference Papers & ReportsDecember, 1989
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