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Author : Elon Hamilton Gilbert,David W. Norman,Fred Everett Winch
Publisher : Unknown
Page : 174 pages
File Size : 44,7 Mb
Release : 1980
Category : Agricultural systems
ISBN : UOM:39015056562583
Author : Laurence de Bonneval
Publisher : Editions Quae
Page : 290 pages
File Size : 51,5 Mb
Release : 1993
Category : Agricultural systems
ISBN : 2738004431
Author : Anonim
Publisher : Unknown
Page : 650 pages
File Size : 48,9 Mb
Release : 1987
Category : Agricultural systems
ISBN : CORNELL:31924068442478
Author : D. W. Norman
Publisher : Food & Agriculture Org.
Page : 216 pages
File Size : 48,6 Mb
Release : 1998
Category : Agricultural innovations
ISBN : 925203644X
Author : David W. Norman
Publisher : Unknown
Page : 52 pages
File Size : 46,5 Mb
Release : 1980
Category : Agriculture
ISBN : UOM:39015012366392
Author : Guido Gryseels,Frank M. Anderson
Publisher : ILRI (aka ILCA and ILRAD)
Page : 68 pages
File Size : 48,9 Mb
Release : 1983-01-01
Category : Agricultural innovations
ISBN : 9290530448
Author : Anonim
Publisher : ILRI (aka ILCA and ILRAD)
Page : 512 pages
File Size : 50,8 Mb
Release : 1983-01-01
Category : Electronic
ISBN : 8210379456XXX
Author : Clive Lightfoot,Shelly Feldman,Zainul Abedin
Publisher : WorldFish
Page : 86 pages
File Size : 48,7 Mb
Release : 1991
Category : Agricultural ecology
ISBN : 9789711022891
In this practical handbook guidelines are given on designing of farming systems and including farm households in this
Author : International Livestock Centre for Africa
Publisher : ILRI (aka ILCA and ILRAD)
Page : 80 pages
File Size : 46,5 Mb
Release : 1985-01-01
Category : Electronic
ISBN : 9290530677
Author : Anonim
Publisher : IICA
Page : 436 pages
File Size : 45,9 Mb
Release : 2024-07-01
Category : Electronic
ISBN : 8210379456XXX
Author : Anonim
Publisher : Unknown
Page : 47 pages
File Size : 42,7 Mb
Release : 1988
Category : Electronic
ISBN : 2738000533
Author : Hubert Cochet
Publisher : Springer
Page : 154 pages
File Size : 43,6 Mb
Release : 2015-04-20
Category : Technology & Engineering
ISBN : 9789401798280
In the first section dedicated to theoretical thoughts on comparative agriculture, Hubert Cochet introduces the notion of “agricultural development”, the very subject of comparative agriculture, with a restored endogenous dimension. He then describes how this approach was slowly consolidated, around the concept of agrarian system in particular. The comparison of agricultural transformations in time and space highlights the importance of the comparatist approach to production processes, their trajectories and differentiation on a worldwide scale. The second section which focuses on the methods and expertise of comparative agriculture, tackles the issues of landscape analysis, field surveys and the historical approach underlying comparative agriculture. It sums up the economic tools mobilised as well as the evaluation perspectives opened up by comparative agriculture.
Author : African Association for Biological Nitrogen Fixation. Conference
Publisher : IITA
Page : 512 pages
File Size : 44,6 Mb
Release : 1992-10-27
Category : Science
ISBN : 0471935603
Biological nitrogen fixation in tropical agrosystems: twenty years of biological nitrogen fixation research in Africa; Sustainable agriculture: definition and measurement; Biological nitrogen fixation systems in tropical ecosystems: an overview; A protocol for screening legumes as soil-improving crops; The sustenance of tropical agriculture with multipurpose azolla; Facteurs pedoclimatiques limitant la lixation biologique l'azole; Response of some tropical nitrogen-fixing woody legumes to drought and inoculation with mycorrhiza; Improvement to the Phaseolus/Rhizobium symbiosis, with particular reference to the Caribbean region; Effect of pest management systems on biological nitrogen fixation; Agronomic evaluation of a rock phosphate as a phosphorus source for Leucaena leucocephala grown on an utisol; Nodulation of soybean grown under field conditions and inoculated with Bradyrhizobium japonicum strains; Effect of fertilization and Rhizobium inoculation on the growth of Leucaena and Gliricidia on an alfisol in south-western Nigeria; Early growth and nodulation in Leucaena and Gliricidia and the effects or pruning on biomass productivity; Comparative stude on the growth and productivity of Sesbania and Leucaena in the Central Plateau region, Rwanda; Supernoculation and non-nodulation mutants of soybean; Genetically improved rhizobia and their use in agriculture; Sustainability of nitrogen-fixing cropping systems: Nodulation and nitrogen fixation and transfer in a cowpea/rice cropping system; The role of legumes in sustaiing soil productivity and controlling soil erosion; Fitting soil-improving legumes into inland valley rice-baes cropping systems in West Africa; Herbage yield and soil fertility restoration potential of some tropical forage legumes.
Author : International Institute of Tropical Agriculture
Publisher : IITA
Page : 84 pages
File Size : 45,5 Mb
Release : 1989*
Category : Electronic
ISBN : 9781310480
Author : Nicolas Ferraton,Isabelle Touzard
Publisher : Editions Quae
Page : 134 pages
File Size : 55,8 Mb
Release : 2009
Category : Agriculture
ISBN : 9782759203390