ABSTRACT: This paper is an user's manual for the phpBB2, a bulletin board package (BBS) developed by the phpBB Group. It's an Open Source software chosen, experimentally, as a knowledge management tool to improve research and development activities at Embrapa…

Editorial



DOSSIER: Educación, Pensamiento Crítico y Cambio Sociocultural
Coordinadora: Lic. María del Pilar Quintero M.


Racismo, etnocentrismo occidental y educación. El caso Venezuela.
Racism, western ethnocentrism and education. The case Venezuela.Racisme, ethnocentrisme occidental et…

Este estudio se ha orientado partiendo de los
siguientes objetivos: Vincular el principio de pertinencia
metodológica e instrumental a las características
del objeto-sujeto investigado en el marco
epistemológico de una disciplina. Reflexionar
sobre la pertinencia de la investigación cualitativa
y…

ABSTRACT: Efficient use of water resources is the key to guarantee suply for future human consumption and irrigation. In the irrigated areas of the Cerrado region pressurized irrigation systems allow high efficiency in water conduction. However, lack of knowledge in…

Traditionally the weed management has been done considering the overall weed infestation in the whole field and then herbicides are sprayed according to a single weed control recommendation for the field. But weeds are not uniformly distributed and normally have…

ABSTRACT: Soil compactation is problem in modern agriculture. Over cultivation, intensive cropping and inappropriate soil management leads to soil compactation. There are important factors which directly affect plant growth, such as water, oxygen, temperature and mechanical resistance to seedling emergence…

ABSTRACT: Many farmers do not use precision agriculture tools due to high equipment costs and lack of knowledge about this new approach. A number of farmers have, however, conducted on-farm experiments without the help of these new and still expensive…

ABSTRACT: Participatory plant breeding uses a concept that joint formal (official researches institutions) and informal sector (farmers communities), combining the capabilities and the knowledge of both, and farmer's experiences, practices, and preferences. The goal is to join the yield improvement…

ABSTRACT: In the Cerrado Biome, the internal carbon cycling, the main carbon pools size, and the fluxes intensity between carbon pools are far from to be completely understood. This study presents the main carbon pools and cycling fluxes in terrestrial…

ABSTRACT: Insects commonly well-known as white grubs are the larval phase of beetles that belong to the Melolonthidae (Coleoptera). This family contains an expressive number of insect species that have different bioecological functions in the agroecosystems in the adult and…