Microbial populations and the activity of the soil under agricultural and agricultural-pastoral systems

The effects of agricultural-pastoral and tillage practices on soil microbial populations and activities have not been systematically investigated. The effect of no-tillage (NT), no-tillage agricultural-pastoral integrated systems (NT-I) and conventional tillage (CT) at soil depths of 0-10, 10-20 and 20-30 cm on the microbial populations (bacteria and fungi), biomass-C, potential nitrification, urease and protease activities, total organic matter and total N contents were investigated. The crops used were soybean (in NT, NT-I and CT systems), corn (in NT and NT-I systems) and Tanner grass (Brachiaria sp.) (in NT-I system); a forest system was used as a control. Urease and protease activities, biomass-C and the content of organic matter and total N were higher (p < 0.05) in the forest soil than the other soils. Potential nitrification was significantly higher in the NT-I system in comparison with the other systems. Bacteria numbers were similar in all systems. Fungi counts were similar in the CT and forest, but both were higher than in NT. All of these variables were dependent on the organic matter content and decreased (p < 0.05) from the upper soil layer to the deeper soil layers. These results indicate that the no-tillage agricultural-pasture-integrated systems may be useful for soil conservation.

Caries experience associated to social and preventive factors in children of a pastoral community from Limeira-SP

Aim: To evaluate caries experience and prevalence associated to social and preventive factors in 3-6-year-old children of a Pastoral Community from Limeira, Brazil. Methods: A cross-sectional study was carried out through an epidemiologic research about the oral conditions of 110 children registered at the Children's Pastoral Community from the city of Limeira, SP, Brazil. Intraoral examination was performed by a trained dentist and the parents/caregivers filled out a questionnaire in order to outline the children's profile with respect to gender, parental education and oral health. Results: Differences related to gender were not detected (p= 0.3404). The most frequent periods of breastfeeding were 0 to 2 months (36.36%) and 2 to 6 months (35.45%), corresponding to 71.81% of the cases. The time bottle feeding pointed to two most frequent categories: 1) more than 12 months (35.45%) and 2) between 2 and 6 months (22.63%). Regarding parental education, the majority of the sample has not completed primary school (38.32%). It was observed a larger number of decayed teeth in male children (63.39%). Caries experience was significantly higher in children who were breastfed for only 2 months of life (41.96%). Children that did not use baby bottle or did not use a baby bottle for more than 1 year presented a smaller dmft, corresponding to 29.17% and 28.33%, respectively. Time of use of bottle and pacifier presented a significant association (p<0.05). Conclusions: The implementation of adequate strategies and actions is needed to reinforce oral health conditions in risk groups.

Perfil do líder comunitário da pastoral da criança da região norte da cidade de Londrina - PR

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

In vitro growth of Brassocattleya orchid hybrid in different concentrations of KNO3, NH4NO3 and benzylaminopurine

Entre as maiores aplicações da cultura de tecidos de plantas está a propagação massal de mudas de plantas ornamentais. O objetivo deste trabalho foi avaliar o cultivo in vitro de um híbrido de orquídea Brassocattleya em diferentes concentrações de NH4NO3, KNO3 e BAP. Foram utilizadas sementes do híbrido de orquídea Brassocattleya 'Pastoral' e as plantas foram cultivadas em meio MS com redução pela metade das fontes de P, Mg e Ca e adição de 25 g L-1 de sacarose, 100 mg L-1 de mio-inositol, 1,5 g L-1 de carvão ativo e 6,5 g L-1 de ágar-ágar, sendo o pH ajustado para 5,8. Como tratamentos foram usados quatro concentrações dos sais NH4NO3 e KNO3 (2x; 1x; ½ e ¼ do meio MS) e três concentrações de BAP (0,0; 0,5 e 1,0 mg L-1). Avaliou-se a multiplicação, o crescimento em altura, massa fresca e seca, além dos teores de açucares redutores na massa seca das mudas. Observou-se grande influência das doses de NH4NO3 e KNO3 sobre o crescimento em altura das mudas, massa fresca e seca e teores de açucares redutores em Bc. ('Pastoral' x Auto). A dose de ¼ da utilizada no meio MS promoveu aumento significativo do crescimento das plantas. Para multiplicação, houve melhor resultado com a dose de ½ dos sais NH4NO3 e KNO3 utilizados no meio MS e 1,0 mg L-1 de BAP.

Memórias sobre um conflito de terra em relatos de história de vida

Este artigo se propõe a analisar as memórias de pequenos produtores rurais do assentamento Camucim (litoral sul da Paraíba) sobre um conflito de terra ocorrido no final dos anos 70 e início dos anos 80, do século XX. Essas memórias foram obtidas através de entrevistas de história de vida, que foram submetidas à Análise de Discurso. A partir da história oral, pretende-se analisar o sentido subjetivo construído pelos narradores, através de suas memórias. Nesse sentido, o conflito é relembrado como uma luta legítima, abençoada por Deus, o que nos remete para o papel fundamental da Igreja nesse processo, através da Comissão Pastoral da Terra (CPT). Além disso, os narradores constroem uma imagem de lutadores corajosos e vitoriosos.

Rural property size drives patterns of upland and riparian forest retention in a tropical deforestation frontier

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Igreja católica, assistência social e caridade: Aproximações e divergências

This article is the result of a research study concluded in 2003, which aimed at investigating how the conception of Law is expressed in the actions of the so-called social pastoral commissions of the Catholic Church in Londrina, Brazil. By observing that the conception of charity and that of social rights walk side-bi-side within the Catholic Church, a question emerged: how is the conception of social right expressed in the actions of social pastoral commissions? Charity is preached as a Christian duty, as an action expressed in the experience of solidarity towards others who are in a situation that prevents them from having minimal living conditions. At least at discourse level, the actions developed are not limited to provide basic goods, clothes or medicine. We realized that those who act in social pastoral commissions, driven by values such as love to fellow human beings and solidarity, have not lost sight of the idea of social right - on the contrary, they have been reinforcing it. © 2006 Programa de Pós-Graduação em Sociologia - UFRGS.

Produção e teores de nutrientes no capim braquiária adubado com nitrogênio e enxofre

Among the production factors, adequate fertilization is an important tool to raise the productivity of pastoral systems and consequently increase the share of Brazil in the supply chain of primary agricultural products at the global level. The objective of this study was to evaluate the interaction of nitrogen and sulfur fertilization in Brachiaria decumbens Stapf. The experiment in pots with Dystrophic Oxisol was evaluated in a completely randomized design with four replications in a 5 x 3 factorial arrangement, involving five N doses (0, 100, 200, 400, and 800 mg dm-3) in the form of ammonium nitrate and three S doses (0, 20 and 80 mg dm-3) in the form of calcium sulfate, with a total of 15 treatments. In the treatments with low S dose, calcium was provided as calcium chloride, to ensure a homogeneous Ca supply in all treatments. The results showed that the tiller production and dry weight of green leaves and of stems + sheaths and total dry weight were favored by the combination of N and S fertilizer, while the proportion of dry leaves was reduced. Nitrogen fertilization raised the N contents in green leaves and stems + sheaths and reduced K contents in fresh and dry leaves. The response to S rates in the N content of green leaves was quadratic.

A esquerda católica na formação do PT

Pós-graduação em Ciências Sociais - FFC

Cursinhos alternativos e populares: movimentos territoriais de luta pelo acesso ao ensino público superior no Brasil. -

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O corpo e a escola: um estudo sobre políticas de subjetivação na sociedade contemporânea

Pós-graduação em Educação - IBRC

Figuratividade na poesia bucólica de Virgílio

Pós-graduação em Estudos Literários - FCLAR

Operários da undécima hora : os Agostinianos Recoletos no Brasil: criação da província de Santa Rita de Cássia e o impacto do Concílio Vaticano II

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O projeto “Sonhando juntos por um mundo unido” nas escolas públicas do município de Assis (SP): educação para a paz e/ou ensino religioso?

Pós-graduação em Educação - FFC