Permian stromatolites associated with bivalve coquina beds-Angatuba, SP, Brazil (Teresina Formation, Parana Basin)

Silicified stromatolites have been described in the Permian Teresina Formation, Passa Dois Group, of the Parana Basin. These stromatolites occur as blocks in the Fazenda Monte Alegre area at the headwaters of the creek known as Corrego Catanduva in the municipality of Angatuba. These blocks originate from the Serra de Angatuba region and were recognized in a road that was cut in the midst of sandstones and siltites. The stromatolites are isolated bioherms that are domed to subspherical with a flat base in profile and a rounded to lenticular shape in plan view. The stromatolites exhibit a reddish coloration and are composed of microcrystalline quartz. Lamination is continuous, non-columnar, and anastomosed, showing parallel to divergent growth; however, divergent columns also occur, especially at the tops of the bioherms. The lamination is fine and well preserved, with alternating light and dark laminas. Microfossils of filamentous cyanobacteria are preserved and were related to the genera Microcoleus and Rivularia. Silicified bivalves occur in association with the stromatolites and are preserved in the form of coquina beds and rare isolated specimens within the bioherms. The described specimens belong to the Pinzonella illusa biozone, with representatives of the species Pinzonella illusa, Angatubia cowperesioides, and Houldausiella elongata. The formation environment of these stromatolites is associated with tidal plains of shallow, brackish, relatively calm, warm waters of good luminosity with the presence of weak currents. There was likely a low level of predation, and the environment may have been hypersaline. The coquina beds associated with the stromatolites indicate a probable proximal tempestite, i.e., they were formed near the coastline. The stromatolites were originally composed of carbonates, although these were replaced by silica during early diagenesis.

Poder público, processo educativo e população: o caso da estação ecológica de Angatuba, SP, Brasil

Pós-graduação em Educação - IBRC

Macroinvertebrados bentônicos de um riacho urbano (Angatuba, SP) sob influência de diferentes pressões antrópicas: uma análise longitudinal e sazonal da composição e dieta

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

Propriedades físico-hídricas, desenvolvimento radicular e produtividade da soja em dois tipos de manejos de solo

The soybean culture is part of crop rotation used by irrigators from the southwestern region of São Paulo State that perform no-tillage soil management as a form of sustainable soil use. The objective of this work was to evaluate the effect of this conservationist practice on physicalhydric properties, soil compaction, root development, and soybean culture production components in relation to the conventional management. The experiment was conducted at the Buriti-Mirim Farm, Angatuba, SP, in Brazil, using an area irrigated by a center pivot system divided into two types of soil management: conventional and no-tillage. Although the no-tillage management presented higher soil density, lower water available and lower soil resistance to penetration, both soil managements showed no difference in relation to root development.

Efeito de dois sistemas de manejo do solo nas propriedades físicohídricas, desenvolvimento radicular e produtividade do milho irrigado

Corn cultivation is part of crop rotation used by irrigation farmers from the southwestern region of São Paulo state, Brazil, who use no-tillage soil management as a kind of sustainable use of soil. The effect of this conservative practice on physical and hydrical properties of the soil, root development and corn crop yield compared to the conventional management was the objective of this work. The experiment was held at the Buriti-Mirim Farm, Angatuba, SP, Brazil, using an irrigated area with a center pivot system and two types of soil management: conventional and no-tillage systems. Although the no-tillage management had higher soil density and less water availability, no significant difference was found for both management systems concerning soil resistance to penetration, root development and crop yield. In both systems of soil management, 90% of roots were concentrated in the first 0-20cm of soil layer.

Tafonomia dos Pygocephalomorpha (Crustacea, Peracarida), subgrupo Irati, Permiano, Bacia do Paraná, Brasil: implicações paleoecológicas e paleambientais

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Uso de reguladores de crescimento como alternativa tecnológica na cultura da macieira ‘Eva’ (Malus domestica Borkh.)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação de um sistema de irrigação por aspersão do tipo pivô central móvel

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

Variabilidade genética de progênies de polinização aberta de Eucalyptus Grandis Hill ex Maiden e correlações entre caracteres juvenil-adulto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento radicular das culturas de feijão, soja e milho, sob diferentes manejos de solo, irrigadas por pivô central

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Propriedades físico-hídricas, compactação do solo, desenvolvimento radicular e produtividade da soja em diferentes manejos de solo

A cultura da soja (Glycine Max L.) faz parte da rotação de culturas praticadas pelos irrigantes do sudoeste paulista, os quais praticam o plantio direto como forma de uso sustentável do solo. O objetivo do trabalho foi avaliar o efeito dessa prática conservacionista sobre as propriedades físico-hídricas do solo, sobre sua compactação, sobre o desenvolvimento radicular e sobre a produtividade da cultura da soja, comparativamente com o preparo convencional. O experimento foi conduzido na Fazenda Buriti-Mirim, município de Angatuba, SP (23º30'13" S, 48º35'37" W; 640m), durante o segundo semestre de 2003, utilizando uma área de Argissolo Acinzentado irrigada por pivô central, dividida em dois tipos de manejo do solo preparo convencional e plantio direto. Embora no plantio direto tenha-se encontrado maior densidade do solo, menor quantidade de água disponível e menor resistência do solo à penetração, os dois manejos não diferiram quanto ao desenvolvimento radicular e a produtividade da soja.

Políticas de apoio a gestão da arborização urbana: uma análise do programa município verde azul

Pós-graduação em Agronomia - FEIS

Estimativas dos parâmetros genéticos para seleção de árvores de Eucalyptus

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito de dois sistemas de manejo do solo nas propriedades físico-hídricas, desenvolvimento radicular e produtividade do milho

Corn cultivation is part of crop rotation used by irrigation farmers from the southwestern region of São Paulo state, Brazil, who use no-tillage soil management as a kind of sustainable use of soil. The effect of this conservative practice on physical and hydrical properties of the soil, root development and corn crop yield compared to the conventional management was the objective of this work. The experiment was held at the Buriti-Mirim Farm, Angatuba, SP, Brazil, using an irrigated area with a center pivot system and two types of soil management: conventional and no-tillage systems. Although the no-tillage management had higher soil density and less water availability, no significant difference was found for both management systems concerning soil resistance to penetration, root development and crop yield. In both systems of soil management, 90% of roots were concentrated in the first 0-20cm of soil layer.