Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 33.
  1. Library Resource

    Seminario sobre el Proyecto Procesos Agropecuarios de Importancia en América Latina desde la Perspectiva Ambiental

    Articles et Livres
    mai, 1985
    Brésil

    Presenta una detallada investigacion sobre formas de ocupacion rural y consecuencias en el Cerrado" y la Amazonia brasilera."

  2. Library Resource
    Articles et Livres
    décembre, 1985
    Colombie, Amérique centrale, Amérique du Sud

    The factors influencing the size and shape of exptl. field plots (area of exptl. lot, soil types, trial objective, no. of replicates, and degree of accuracy and homogeneity of the exptl. material) for the execution of field expt. are discussed. The basic principles of the following different methods to determine plot size are described: max. curve method, method of Koch and Rigney, Hatheway's method, and the max. curve method using the multiple linear regression model. Some considerations are presented on the border effect and on plot size in bush and climbing bean trials.

  3. Library Resource
    Articles et Livres
    décembre, 1985
    Colombie, Amérique centrale, Amérique du Sud

    The objectives of the diagnosis of bean production are to (1) contribute criteria for the design and completion of on-farm trials of the new bean technology and (2) to take information to research centers that helps define bean research priorities. A summary is presented of the methodology suggested and practiced in national and international courses on on-farm research carried out by CIAT's bean program.

  4. Library Resource
    Articles et Livres
    décembre, 1985
    Afrique, Afrique orientale

    Examines the productivity of East African pastoral systems in terms of animal protein & energy production, milk offtake and livestock production parameters such as calving percentage, calf mortality and herd structure; compares the productivity of East African pastoral systems to those of commercial ranches and to pastoral systems in other parts of the world.

  5. Library Resource
    Articles et Livres
    décembre, 1985
    Afrique, Afrique orientale

    Examines the productivity of East African pastoral systems in terms of animal protein & energy production, milk offtake and livestock production parameters such as calving percentage, calf mortality and herd structure; compares the productivity of East African pastoral systems to those of commercial ranches and to pastoral systems in other parts of the world.

  6. Library Resource
    Articles et Livres
    décembre, 1985
    République-Unie de Tanzanie, Afrique, Afrique australe

    Evaluates the productivity of grade Boran cattle maintained by chemoprophylaxis under severe trypanosomiasis risk at Mkwaja ranch, Tanzania; uses data based on more than 20,000 calving records over the 10-year period from 1973 to 1982; discusses environmental influences on performance traits and links between tsetse population dynamics & cattle; includes comparison of Boran genotypes and its effect on pre-weaning growth characters.

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