Search results for "rendement"
showing 10 items of 81 documents
Long-term mineral fertiliser use and maize residue incorporation do not compensate for carbon and nutrient losses from a Ferralsol under continuous m…
2015
9 pages; International audience; It has been repeatedly argued that mineral fertiliser application combined with in situ retention of crop residue biomass can sustain long-term productivity of West African soils. Using 20-year experimental data from southern Togo, a biannual rainfall area, we analysed the effect of two rates of mineral NPK fertiliser application to maize–cotton rotation on the long-term dynamics of soil C and nutrient contents, as compared with two control treatments. Mineral fertiliser treatments consisted of application to both maize (first season) and cotton (second season) the research-recommended NPK rates (Fertiliser-RR) and 1.5 times these rates (Fertiliser-1.5 RR). …
Les taux de rendement privés et sociaux de l'éducation en France en 1970
1974
référence interne : 74003
Return of education in Ivory Coast
1986
International audience
Recovering the cost of public higher education in LDCs : to what extent are loan schemes an efficient instrument ?
1984
référence interne : 84022; ln many LDCs today, the education sector is still characterized by relatively low levels of enrollment. On the other hand, however, expansion in the public provision of education is limited by constraints in the public budget. To overcome this problem, various strategies could be considered, among which is the implementation of cost recovery policies. ln this paper, we have argued that higher education would be a suitable candidate ror such policies. Cost recovery at this level of education would be helpful, not only because of its potential effect on resource mobilization, but also because it would boost efficiency and equity in the overall distribution of public…
Financing education in Sub-Saharan Africa : issues of equity and efficiency of investment : some policy alternatives
1985
The onset of the rainy season and farmers’ sowing strategy for pearl millet cultivation in Southwest Niger
2011
A multi-year (2004-2009) field survey of on-farm sowing practices in 10 villages located in south-west Niger close to Niamey, is analysed to investigate the relationships (i) between rainfall and the sowing date of pearl millet and the risk of sowing failure, (ii) between sowing and meteorological/agro-climatic onset dates, (iii) between sowing/onset dates, and simulated and observed yield/biomass at the end of the season. Even if some villages sow without any synchronous or anterior rainfall, most parcels (73% out of the 1551 available cases) are sown during and just after a 2-day wet spell receiving at least 10 mm. In fact, there is a strong correlation (r = 0.82-0.95 depending on onset d…
Quand le sport (dés)oriente les parcours des jeunes
2020
Référence interne : 20013; Axé sur la transition lycée-enseignement supérieur, ce rapport souligne la diversité des parcours vécus par des bacheliers et notamment des bacheliers professionnels dans le secondaire, en montrant leurs rapports pluriels aux études. Il étudie tout particulièrement comment des expériences et investissements sportifs peuvent impacter les orientations des jeunes, voire leur donner un tour inattendu, à l'image des bacheliers professionnels en STAPS ou des jeunes filles en filière masculine. L’expérience en lycée professionnel peut être perçue par certains comme une possibilité d'apprendre un métier ou d’obtenir le baccalauréat, d'autres la vivent comme une fermeture …
The Economic Returns to Investment in Project-Related Training : Some Evidence from World Bank Projects
1988
International audience; Cet article évalue l'efficacité des investissements dans la formation axée sur un projet (FAP) en vue de combler le manque de compétences techniques constaté au sein des populations de projet. Les données servant à l'analyse proviennent de 115 études de la Banque Mondiale de projets agricoles ou autres (transport, vie urbaine, produits chimiques, manufacture). Contrairement à de nombreuses autres études, l'article présent ne se base pas sur les données relatives aux salaires pour calculer les taux pertinents de rentabilité, utilisant plutôt le succès d'un projet pour en mesurer les acquis. Ces derniers indiquent que la FAP rapporte d'importants bénéfices dans les pro…