It is widely believed that tropical soils (mainly Oxisols) have excellent physical characteristics such as high infiltration rates, high permeability of water, good and stable soil structure and that consequently, they can support mechanized agriculture. However in the Eastern Plains (Llanos…
A survey for parasitoids of the whiteflies, Bemisia tuberculata Bondar, Trialeurodes variabilis Quantaince, T. vaporariorum (Westwood), Aleurotrachelus socialis Bondar, Tetraleurodes sp., Aleuroglandulus malangae Russell and Aleurodicus sp., was conducted in 6 cassava growing regions of Colombia…
Livestock production plays a key role in tropical Latin America in a changing economic environment. This study focuses on documenting the transformations of extensive production systems by using superior forage germplasm supplied by regional research systems. The adoption of improved Brachiaria…
En el sector septentrional de la ladera Este del cerro Catedral (41°10S, 71°30O, 2.388 m) la práctica del esquí comenzó hace alrededor de 65 años y en la actualidad se desarrolla el centro de deportes invernales más importante de Sudamérica. Se compararon los tipos de vegetación actual y…
In the months since approval in November 2002, the Challenge Program on Water and Food
(CPWF) has evolved at a tremendous pace. Much has been achieved. Governance, management, personnel and procedures are in place and operational. The first call for proposals under the competitive…
The last decade has seen the emergence of a number of innovative community level initiatives inAsia, Africa and Latin America for agrobiodiversity development and conservation.Traditional knowledge systems form and integral part of many of these programs.However, there is still a considerable…
Este artigo examina a evolução da reivindicação dos direitos da mulher à terra na reforma agrária brasileira sob o prisma dos três principais movimentos sociais rurais: o Movimento dos Trabalhadores Rurais Sem Terra (MST), os sindicatos rurais e o movimento autônomo de mulheres rurais. O mérito…