This paper reviews the experimental basis for the lectin-recognition hypothesis and considers ways in which the host/Rhizobium interaction might be manipulated to enhance the benefits of symbiotic nitrogen fixation in the tropics.
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Library ResourceArtículos de revistas y librosDiciembre, 1982
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Library ResourceArtículos de revistas y librosDiciembre, 1982
Biological nitrogen (N2) fixation in both free-living and symbiotic organisms is an energy-requiring process dependent upon a supply of carbon and energy. In this paper the energy costs for N2 fixation and nodule respiration in symbiotic systems are compared with those of free-living N2-fixing systems, with the theoretical energy requierement for N2 fixation, and with the cost of utilization of combined N.
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Library ResourceArtículos de revistas y librosDiciembre, 1982Nigeria, Zambia, Uganda, Malí, Ghana, Camerún, Côte d'Ivoire, África occidental, África, África oriental, África Central, África austral
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Library Resource
Ustawa o scalaniu gruntow
LegislaciónMarzo, 1982Europa, Europa oriental, PoloniaThe present Act, which is composed of 35 Paragraphs, has been adopted to ensure the development of agriculture and forestry by improving the area structure of farms, forests and forest lands, and by adapting borders of immovable properties to the system of water drainage, roads and terrain features. Integration applies to lands placed in one or several villages or their parts. However, it does not apply to lands where mining or industrial plants, historic or architectural monuments, sanctuaries, lands used for fishery or allocated for special purposes exist.
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Library ResourceConstituticiónDiciembre, 1982China, Asia, Asia oriental
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Library ResourceDocumentos de política y resúmenesDiciembre, 1982
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Library ResourceInformes e investigacionesDiciembre, 1982
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Library ResourceArtículos de revistas y librosDiciembre, 1982Egipto, Suiza, Japón, Viet Nam, Chile, Jordania, China, Alemania, Indonesia, Brasil, Argentina, India, República de Corea, Hungría, Tailandia, Asia, África
This Bulletin contains the papers and proceedings of the FAO/SIDA Workshop on Organic Materials and Soil Productivity in the Near East. In view of the important complementary effect of organic materials to mineral fertilizers and their role in improving the soil?s physical properties, the Workshop has dealt with a wide variety of items on techniques and uses of the organic materials and wastes including, composting, bio-fertilizers and biogas, the environmental and health aspects, and action guidelines for follow-up activities in the Near East countries.
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Library ResourceArtículos de revistas y librosDiciembre, 1982
Le présent document examine les problèmes auxquels se heurtent les pays lorsqu'il s'agit d'aménager des stocks de poisson qui se déplacent entre leurs ZEE et celles de pays adjacents ou vers la haute mer. Les mesures à prendre dependent du type de déplacement.
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Library ResourceArtículos de revistas y librosDiciembre, 1982
Revue internationale des forts et des industries forestires
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