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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Les exportations agro-alimentaires tunisiennes vers le marché de la CEE : évolution, compétitivité et perspectives /

Arfa, Lamia. January 1994 (has links)
Th. MS--Montpellier--CIHEAM-IAMM, 1994. / Bibliogr. p. 93-98.
2

Facteurs déterminants des performances des industries agro-alimentaires grecques en matière d'exportation /

Maronicolaki, Maria. January 1993 (has links)
Th. MS--Montpellier--CIHEAM-IAMM, 1993. / Bibliogr. p. 87-91.
3

Spatial and comparative aspects of arable field margin flora

Rew, Lisa J. January 1993 (has links)
No description available.
4

Agro-industrial sector development in Saudi Arabia : potential and constraints

Al-Abdulmunim, Abdulmunim I. January 1995 (has links)
No description available.
5

Les Industries agricoles et alimentaires : à la recherche de valeur ajoutée /

Metzger, René. January 1982 (has links)
Thèse--Sc. écon.--Nancy II, 1982. / Bibliogr. p. 307-312.
6

Les Organisations internationales dans le domaine agro-alimentaire.

Botrel, Jacques, January 1900 (has links)
Th. univ.--Pharm., expertise des nuis.--Montpellier 1, 1978. / Index.
7

Les relations interorganisationnelles le cas des entreprises de l'agroalimentaire de l'économie camerounaise /

Bekono Ohana, Sébastien. Bréchet, Jean-Pierre January 2009 (has links)
Thèse de doctorat : Sciences de gestion : Nantes : 2009. / Bibliogr. Index.
8

Assessing the symbiotic dependency of grain and tree legumes on N2 fixation for their N nutrition in five agro-ecological zones of Botswana

Pule-Meulenberg, F, Dakota, FD January 2009 (has links)
Abstract To assess the symbiotic dependency of grain and shrub/tree legumes within five agro-ecological zones of Botswana, fully expanded leaves of the test species were sampled from about 26 study sites within Ngwaketse, Gaborone, Central, Ghanzi and Kalahari agro-ecological zones. Isotopic analysis revealed significant differences in 1)15N values of the grain legumes [cowpea (Vigna unguiculata L. Walp), Bambara groundnut (Vigna subterranea L. Verde.), and groundnut (Arachis hypogaea L.)] from the 26 farming areas in both 2005 and 2006. Estimates of %Ndfa of leaves also showed significant differences between farming areas, with cowpea deriving more than 50% of its N nutrition from symbiotic fixation. In terms of distribution, many more symbiotic shrub/tree species were found in the wetter Ngwaketse agro-zone compared to the fewer numbers in the drier Kalahari region. Acacias were the more dominant species at all sites. Leaf 1)15N values of shrub/tree species also varied strongly across Botswana, with 11 out of 18 of these legumes deriving about 50%, or more, of their N from symbiotic Nz fixation. Acacia caffra, in particular, obtained as much as 93.6% of its N nutrition from symbiotic fixation in the wetter Ngwaketse agro-zone. This study has shown that grain legumes sampled from farmer's fields in Botswana obtained considerable amounts of their N from symbiotic fixation. We have also shown that shrub and tree legumes probably play an important role in the N economy of the savanna ecosystems in Botswana. However, the decline in the number of functional Ny-fixing shrub/tree legumes along an aridity gradient suggests that soil moisture is a major constraint to Nz fixation in the tree legumes of Botswana.
9

Assessing the symbiotic dependency of grain and tree legumes on N2 fixation for their N nutrition in five agro-ecological zones of Botswana

Pule-Meulenberg, F, Dakora, FD 01 January 2009 (has links)
Abstract To assess the symbiotic dependency of grain and shrub/tree legumes within five agro-ecological zones of Botswana, fully expanded leaves of the test species were sampled from about 26 study sites within Ngwaketse, Gaborone, Central, Ghanzi and Kalahari agro-ecological zones. Isotopic analysis revealed significant differences in 1)15N values of the grain legumes [cowpea (Vigna unguiculata L. Walp), Bambara groundnut (Vigna subterranea L. Verde.), and groundnut (Arachis hypogaea L.)] from the 26 farming areas in both 2005 and 2006. Estimates of %Ndfa of leaves also showed significant differences between farming areas, with cowpea deriving more than 50% of its N nutrition from symbiotic fixation. In terms of distribution, many more symbiotic shrub/tree species were found in the wetter Ngwaketse agro-zone compared to the fewer numbers in the drier Kalahari region. Acacias were the more dominant species at all sites. Leaf 1)15N values of shrub/tree species also varied strongly across Botswana, with 11 out of 18 of these legumes deriving about 50%, or more, of their N from symbiotic Nz fixation. Acacia caffra, in particular, obtained as much as 93.6% of its N nutrition from symbiotic fixation in the wetter Ngwaketse agro-zone. This study has shown that grain legumes sampled from farmer's fields in Botswana obtained considerable amounts of their N from symbiotic fixation. We have also shown that shrub and tree legumes probably play an important role in the N economy of the savanna ecosystems in Botswana. However, the decline in the number of functional Ny-fixing shrub/tree legumes along an aridity gradient suggests that soil moisture is a major constraint to Nz fixation in the tree legumes of Botswana.
10

Resource relations and degradation : a case study of the Dagaaba of Upper West Region, Ghana

Bakang, John-Eudes Andivi January 2000 (has links)
No description available.

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