La dimensión ambiental en proyectos de desarrollo agrícola = The environmental dimension in agricultural development projects

Incluye Bibliografía

Proposta de um sistema automatizado para controle de nível freático em sub-irrigação

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Information and communication technologies for agricultural development in Latin America: trends, barriers and policies

Includes bibliography

ICTs in public agricultural institutions in Latin America: Uruguay, Costa Rica and Paraguay case studies

Includes bibliography

Sector agrícola en los esquemas de integración económica de América Latina = Agricultural sector in the economic integration systems of Latin America

Incluye Bibliografía

Infrastructure, transport and production development in an agricultural region: a case in Argentina.

The development of the agricultural area in central and northern Argentina was analysed in a recent ECLAC study. More than 80% by volume of the country's agricultural exports pass through the ports in this area. Exports by the agroindustrial complex account for 58% of the total value of Argentine sales.It is known that investments in infrastructure generally help to reduce the costs of enterprises and to enhance productivity. The main idea presented in this study is that investments in transport infrastructure are a necessary condition for the productive development of a region, especially in relation to external trade through ports and navigable waterways.In the case of Argentina, a positive relationship has been observed between the development of port and waterway services (with reduced costs and operating times, improved reliability and new services), and expansion of the agricultural border, growth of productivity and agricultural production, and its industrialization.

Agricultural transformation and Gender considerations in Caribbean Economics

The aim of this paper is to provide an overview of the gender and social disparities existing in the agricultural and rural sector in Caribbean economies. In this context, agricultural transformation as occasioned by the dismantling of preferential trading arrangements is analysed to identify the most relevant gender discriminatory measures in the current agricultural development policy and programmes. The analysis seeks to provide the basis for enhancing understanding among policy makers, planners and rural development practitioners of the gender and social dimension involved in the formulation of agricultural policy and more specifically in relation to the new policy and institutional arrangements for agriculture in the region. The paper also provides insights regarding what changes should take place to create an enabling environment for more gender-based approaches to policy-making and strategic planning in agricultural development and trade in the Caribbean. The methodology centred on the review of secondary sources that provide references on the new challenges, opportunities and constraints faced by the agricultural sector, in particular small farmers, in the context of globalization and agriculture transformation. Much of the literature for this assignment was obtained from FAO Headquarters in Rome and the FAO Subregional Office in Barbados, as well as the OECS Secretariat in St. Lucia. In the process of the review exercise, due consideration was given to changes in agricultural production patterns, resources allocation and rural livelihoods. Efforts to examine the most relevant policy measures and mechanisms in-place in support to agricultural development in the region were constrained, in the main, by the absence of gender disaggregated data. Documentation as regards the situation of women and men in relation to agricultural labour, rural income and food security situation in regions were limited. The use of the internet served to bridge the communication gap between countries and institutions. The preliminary draft of the paper was presented and discussed at the FAO/ECLAC/UNIFEM regional workshop on mainstreaming gender analysis in agriculture and trade policies, for Caribbean countries, in November 2003. The second draft of the paper was informed by comments from the workshop and additional information acquired through field visits to Barbados, St. Kitts and St. Vincent in March 2004. The three day visits to each of these three countries entailed a review/appreciation of the resource, constraints and institutional capacities for gender mainstreaming within the agricultural sector at the national level. This included visits to some of the major agricultural projects and interviews with farmers (where feasible) in respect of their perspective of the current situation of the agricultural sector and the viability of their farm enterprises. As well, meetings were held with relevant/available officials within the respective ministries of agriculture to discern the gender consideration as regards agricultural policy and planning at the country level. The internet was invaluable to the task of sourcing supplementary information to satisfy the aim of the paper; in respect of the identification of concrete policy measures and actions to formulate and develop more gender/social-responsive agricultural development policies. The final revision, though thwart with resource and communication constraints, was ultimately completed in compliance with the structure and approach proposed in the terms of references for this FAO/ECLAC assignment.

Energetic efficiency of an agricultural tractor in function of tire inflation pressure

The tire inflation pressure, among other factors, determines the efficiency in which a tractor can exert traction. It was studied the effect of using two tire inflation pressures, 110.4 kPa in the front and rear wheels, 124.2 kPa in the front wheel and 138 kPa in the rear wheels, the energetic efficiency of an agricultural tractor of 147 kW of engine power, in the displacement speed of 6.0 km.h-1, on track with firm surface, with the tractor engine speed of 2000 rpm. For each condition of the tire pressure, the tested tractor was subjected to constant forces in the drawbar of 45 kN and 50 kN, covering 30 meters. It was used a randomized complete block with a 2x2 factorial arrangement (tire pressure and drawbar power) with four replications, totaling 16 experimental units. Data were subjected to analysis of variance, using the Tukey test at 5% probability for comparison averages. The lowest hourly and specific fuel consumption, the lowest slippage of the wheelsets and the highest efficiency in the drawbar was obtained with the tire inflation pressure of 110.4 kPa in the front and rear tires of the tractor, highlighting that lower pressures improve energetic and operational performance of the tractor.

Potential of adjuvants to reduce drift in agricultural spraying

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)