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Mostrando ítems 1 a 9 de 3.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 1979
    Colombia, América central, América del Sur

    Some cultural control measures of weeds in cassava are discussed: quality of the material, planting system and density, density x plant type interaction and use of mulching. In order to study the interaction plant type x planting density, var. M Mex 59 (vigorous) and M Col 22 (nonvigorous) were planted in plots of 7500 and 15,000 plants/ha; and 3 levels of weed control were established: complete, intermediate and no control. The vigorous var.

  2. Library Resource
    Artículos de revistas y libros
    Diciembre, 1979
    Colombia, América del Sur, América central

    This audiotutorial unit (cassette, printed script, 76 color slides, study guide, self-evaluation test), prepared by the Communications Support Unit at CIAT, is available for use with a manually or automatically synchronized slide projector/cassette tape reccorder. Each unit is a vailabIe from the Distribution Office at a cost of US$ 50; photocopies of the study guide alone can be obtained from the Cassava Information Center. The objective of this unit is to present some of the results of research conducted by the physiology Section of CIATs Cassava Program.

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 1979
    África, África occidental

    Description of geographical aspects of the Subhumid Zone of West Africa and economic and sociological aspects of the Fulani ethnic group, w. emphasis on fodder resources, range management, livestock raising, livestock management, and animal diseases, w. analysis of land use & land development strategies, and directions for future research.

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