In 2010 the Brazilian Government established a goal to reduce the emissions of greenhouse gases (GHG) by agriculture from 36.1 up to 38.9% in ten years (2010 -2020). To contribute for reaching part of this purpose in Tocantins State, Embrapa and other research and extension services partners have been conducting a project of technology transference on sustainable agricultural practices, including integrated crop-livestock-forestry (ICLF), since 2012.
The increasing demand for agricultural commodities is a major cause of tropical deforestation. However, pressure is increasing for greater sustainability of commodity value chains. This includes the demand to establish new crop plantations and pasture areas on already deforested land so that new forest clearing for agriculture is minimized. Where tree crops are planted as part of agroforestry systems on deforested land, this amounts to a form of re-agro-forestation which can generate environmental benefits in addition to crop production.
In the Amazon, slash and burn is the most common technique used by American-Indians, small farmers and even big ranches to transform forests into rural landscapes. The basis of food subsistence for diverse populations (rice, corn and bean), slash and burn is also a must for the plantation of cocoa, coffee, palms and pastures. The Amazonian rural landscape is currently dominated by pastures, occupying around 80 % of the deforested surface.
Traditional shifting cultivation in the Amazon region has caused negative environmental and social effects due to the use of fire. This type of agriculture has been criticized because it results in emission of large amounts of carbon into the atmosphere and a loss of soil productive potential.
Some of the most promising and at the same time some of the most challenging areas of future food production are found in the savannas of South America. Integrating cropping, livestock, and forestry in these regions can increase the eco-efficiency of agricultural production. This chapter presents a case study of an integrated crop, livestock, and forestry system in Brazil. The study area is in Goiás State in the Cerrado region, a vast savanna covering almost one quarter of Brazil's land area.
Brazilian agriculture is a success story. The country that until the 1960s systematically received food donations from abroad. and up to the 1980s was still a large food importer, had its agriculture profoundly changed. The traditional agriculture that prevailed in Brazil until the 1970s was progressively transformed in the following decades into a modern and highly competitive agriculture based on science.
International partnership to carry out collaborative research and development programs has been implemented for a long time. However, with globalization, the economic, social, political and cultural diversity of interacting partners reached levels where this variety of collaborators often has shown some weaknesses in issues like governance. Strong and sound partnerships must be manageable in order to ensure the achievement of the set objectives.
The "Technological Innovation Act", promulgated in Brazil in 2004, represents the main legal framework implemented to promote technological innovation and to delineate a favorable scenario for scientific development in Brazil. It regulates specially the relationship between Scientific and Technological Institutions (STI) - such as universities and public research institutes - and private companies in Brazil.
Cette publication offre de nombreux exemples concrets détaillant différentes manières de réengager les jeunes dans le secteur agricole. Elle montre à quel point des programmes éducationnels sur mesure peuvent offrir aux jeunes les compétences et la perspicacité nécessaires pour se lancer en agriculture et adopter des méthodes de production respectueuses de l’environnement. Beaucoup des approches ou des initiatives décrites dans cette publication sont issues des jeunes eux-mêmes.
En este artículo se procura identificar, describir y comparar la concepción de extensión rural que guía a nivel subjetivo las prácticas de extensión de técnicos que trabajan en diez diferentes países latinoamericanos, para luego comparar estas concepciones con los modelos y lineamientos de extensión propuestos por la bibliografía. Para esto, primero se describen distintas concepciones de extensión que han tenido importancia en América Latina a lo largo de la historia, luego se presenta la metodología de investigación utilizada, presentándose por último los resultados a los que arribó