Resultados de la búsqueda
Mostrando ítems 1 a 9 de 13.
-
Library Resource
Documentos de conferencias e informes
Nigeria, África, África occidental
Reports on completed and planned research to examine farmers' perceptions of different breeds, the discretion they exercise over breed composition, and the impacts of breed perceptions on breeding practices. ILCA has recently undertaken three household surveys that shed light on farmers' breed preferences and breeding practices. The survey results indicate that farmers' breed prortfolios are the outcome of dynamic processes that vary across farmers and environmental conditions.
-
Library Resource
Informes e investigaciones
África, África occidental
IITA developed alley cropping (also called hedgerow intercropping by ICRAF) in the mid 1970s to alleviate the problems of reduced soil fertility, reduced yields and soil erosion that were associated with population growth and reduced fallow periods. In the early 1980s this technology was adapted by ILCA to serve as a source of feed. On-farm research was conducted in two locations of South-West and South-East Nigeria. The locations differ in terms of population density, soil fertility, land tenure and typical farm layout.
-
Library Resource
Informes e investigaciones
Nigeria, África occidental
-
Library Resource
Informes e investigaciones
Níger, África, África occidental
This research was undertaken as a Ph.D. dissertation (Stanford University) in conjunction with the ILCA programme in Niamey, Niger. The objective of the research was similar to that of the World Bank studies: to test how land tenure affects land-improving investment, agricultural productivity and resource management. The standard hypothesis is that land tenure that is non-exclusive insecure or non-transferable will lead to under-investment and depressed factor mobility.
-
Library Resource
Documentos de conferencias e informes
África, África occidental
This report is divided into seven sections. The first section deals with biology of Stylosanthes and its importance in West Africa and Latin America. The second section presents papers on the screening and evaluation of Stylosanthes germplasm. This includes genetic diversity, genetic resources, species screening, multi-locational testing and evaluation of accessions. The third part discusses the dynamics, nutrient requirements, and pests and diseases of Stylosanthes species. Section four looks at Stylosanthes-based pastures for livestock production.
-
Library Resource
Artículos de revistas y libros
Nigeria, África, África occidental
Large areas of land are presently cleared of their natural cover, endangering the worldwide ecosystem. Land clearing, if necessary, should be carried out with great care after very careful consideration. Different land types require different clearing techniques. Often, soil needs to be stabilized after clearing. All clearing processes require training of persons involved.
-
Library Resource
Informes e investigaciones
Burkina Faso, Camerún, Chad, Gambia, Malí, Mauritania, Níger, Nigeria, Senegal, África occidental
-
Library Resource
Artículos de revistas y libros
-
Library Resource
Artículos de revistas y libros
Inland valleys are defined as the upper reaches of river systems. These include valley bottoms and minor floodplains,their hydromorphic fringes and upland slopes and crests. These occupy 22-52 million ha of land in W. Africa and although of good agricultural potential are only marginally used. An agro-ecological characterization developed in the Cte d'Ivoire, is outlined on 4 levels: macro (1:1 000 000-1:5 000 000), reconnaissance (1:100 000-1:250 000), semi-detailed (1:25 000-1:50 000) and detailed (1:5000-10 000).
-
Library Resource
Artículos de revistas y libros
Asia meridional, África, Bangladesh, China, Gambia, Guatemala, India, Indonesia, Kenya, Malawi, Filipinas, Rwanda, Zambia
The distributional benefits of commercialization of agriculture, access to commercialization opportunities, and sharing of commercialization risks are functions of institutional arrangements. Obviously, the indirect food security and nutritional effects are, thereby, partly a function of such institutional arrangements. This chapter explores the relevance to food security of one form of contractual relationship in agriculture: formal contracts between producers and buyers (generally processors or exporters), a production and marketing system known as contract farming.
Búsqueda en la Biblioteca de Tierras
A través de nuestro sólido motor de búsqueda, puede explorar cualquier elemento de los más de 64.800 recursos rigurosamente seleccionados en la Biblioteca de la Tierra. Si desea obtener una visión general de lo que es posible, siéntase libre de examinar la Guía de búsqueda.
