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Showing items 1 through 9 of 11.
  1. Library Resource
    Journal Articles & Books
    December, 1982
    Nigeria, Zambia, Uganda, Mali, Ghana, Cameroon, Ivory Coast, Western Africa, Africa, Eastern Africa, Middle Africa, Southern Africa
  2. Library Resource
    Journal Articles & Books
    December, 1982
    Egypt, Nigeria, Iraq, Australia, Ghana, Congo, Sierra Leone, Cameroon, New Zealand, Rwanda, Philippines, South Africa, Vietnam, Japan, Madagascar, Tanzania, India, Romania, Brazil, Cuba

    In view of the continuing increase in cost and scarcity of mineral fertilizers resulting from the use of high-cost fossil energy, there is renewed interest in organic recycling and biological nitrogen-fixation to improve soil fertility and productivity. The workshop in Alexandria recommended the further promotion of research, development, application and dissemination of information available on various aspects of biological nitrogen-fixation, including symbiotic systems of rhizobia/legume and Azolla/blue-green algae, and free-living nitrogen-fixing bacteria and blue-green algae.

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