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Showing items 1 through 9 of 2.
  1. Library Resource
    Peer-reviewed publication
    Journal Articles & Books
    December, 2006
    Eastern Africa, Sub-Saharan Africa, Africa, Tanzania

    "On-farm experiments were conducted in farmers’ fields at 12 different sites in the 2 districts of Moshi and Rombo in northern Tanzania during the 2000–01 cropping season to study the effects of (brady)rhizobial inoculation in combination with P supply on growth and grain yields of soybean and common bean, and to assess the economic returns of these different technologies to farmers. A low level of N was included as an indicator of endogenous soil N status.

  2. Library Resource

    the role of wheat genetic diversity in Tigray Region, Ethiopia

    Policy Papers & Briefs
    December, 2006
    Eastern Africa, Sub-Saharan Africa, Africa, Ethiopia

    "This paper investigates the effects of wheat genetic diversity and land degradation on risk and agricultural productivity in less favored production environments of a developing agricultural economy. Drawing production data from household survey conducted in the highlands of Ethiopia, we estimate a stochastic production function to evaluate the effects of variety richness, land degradation, and their interaction on the mean and the variance of wheat yield. Ethiopia is a centre of diversity for durum wheat and farmers manage complex variety mixtures on multiple plots.

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