Time filter

Source Type

Paulino G.M.,University Estadual Of Minas Gerais | Barroso D.G.,State University of Norte Fluminense | Lamonica K.R.,State University of Norte Fluminense | Costa G.S.,Federal University of Fluminense | Carneiro J.G.A.,State University of Norte Fluminense
Revista Arvore

An alley cropping system with gliricidia was established in an organic orchard of mango and soursop trees at one year after the planting of the fruit trees, in Campos dos Goytacazes-RJ-Brazil. The objective of this work was to evaluate the survival and performance of the gliricidia in the alley cropping in relation to the production of dry fitomass and the nutrient supply to the system. Gliricidia showed high survival rates (93%). The annual average of dry fitomass yield and the addition of nutrients to the system were greater in the second year of evaluation (2007) than in the first year (2006), both with three annual prunings that adjusted with the recommended periods of fruit trees fertilization, in special the soursop tree. The quantity of N added to the orchard with gliricidia prunes was higher than the recommended fertilization for mango and soursop tree plots. On the other hand, quantities of P and K added to the orchard were not enough to supply the fertilization demanded for both cultures. Gliricidia presented good performance under the experiment conditions, with potential for continuous use in the system and possibility of using nutrients supplied by the fruit trees into the system. However, further long term evaluations are necessary to verify the sustainability of the intercropping. Source

de Nobile F.O.,Centro Universitario da Fundacao Educacional | Galbiatti J.A.,Sao Paulo State University | Muraishi R.I.,Fundacao Educacional | Araujo J.R.,University Estadual Of Minas Gerais
Engenharia Agricola

The agricultural use of organic and industrial residues is an alternative of exploitation with fertilization and source of organic matter to the soil. In this direction, the objective of this research was to evaluate the use of the urban solid waste and biofertilizer as nutrient source, and residue of the bauxite processing as agricultural liming materials of the soil for sugar cane (cane plant) and culture yields, irrigated with potable water and wastewater. For in such an experiment in vase was lead, under Alfisol soil, cultivated with the variety RB855536. It had been evaluated biometric variable of the plant such as: plant height, diameter of stem, tillering, leaf number, dry matter of the root and dry matter of the aerial part. The data showed that the quality of the irrigation water, potable and wastewater, did not influence the evaluated parameters. The application of urban solid waste and biofertilizer had consisted in an efficient source of nutrients for sugar cane plants, but is necessary to apply additional fertilizer for the attainment of stem production similar to the treatment with conventional mineral fertilization. Now the residue of the bauxite processing revealed efficient in the correction of the acidity presenting similar physical parameters to the treatment with mineral fertilization and lime, with exception of the dry matter of the root. Source

Saraiva A.S.,Federal University of Tocantins | Dornelas B.F.,Federal University of Tocantins | Silva J.I.C.,Federal University of Tocantins | Erasmo E.A.L.,Federal University of Tocantins | And 3 more authors.
Planta Daninha

Intercropping of grains and forage grasses is a common practice in integrated crop-livestock systems for maximizing production. This work aimed to evaluate the influence of different densities and sowing periods of Brachiaria brizantha BRS Piatã on the yield of the cultivar M-8527 RR sown in intercropping. The experimental design was a randomized block in a (2 x 5) factorial arrangement with four replicates, including two sowing periods of B. brizantha (20 and 30 days after emergence of soybean seeds) and five sowing densities of Brachiaria (0, 3, 6, 9 and 12 kg ha-1 seed). The following parameters were evaluated for soybean: plant height, shoot dry matter and grain yield. The variables evaluated were influenced by the densities and sowing periods of B. brizantha. Regardless of the sowing period of B. brizantha, all densities up to 3 kg ha-1 led to a reduction in soybean yield. However, yield was higher than 5 % only at the density of 12 kg ha-1 sown at 30 DAE, as well as at 9 and 12 kg ha-1 sown at 20 DAE. The competitive effect of soybean, cultivar RR M- 8527 was higher when B. brizantha cv. Piatã was sown 30 days after crop emergence. © 2014, Sociedade Brasileira da Ciencia das Plantas Daninha. All rights reserved. Source

Corgosinho P.H.C.,Bairro Universitario | Corgosinho P.H.C.,University Estadual Of Minas Gerais
Journal of Natural History

A new genus of Nannopodidae is described. Talpacoxa brandini gen. et sp. nov. is a typical sand-dwelling species with modified burrowing first legs. The new genus can be diagnosed by leg 1 transformed into a burrowing structure; coxa hypertrophied, longer than the exopod and the endopod, with a well-developed crista, downwardly extended, with a bifid tip; exopod one-segmented, strong, rectangular, ornamented with various cuneiform spinules; endopod two-segmented, second endopodal segment with two distal elements; intercoxal plate well developed, longer than the exopod and the endopod. Leg two to leg four reduced, with two-segmented exopod and one-segmented endopod; limbs laterally displaced with no trace of intercoxal plate. Leg five exopod one-segmented; intercoxal plate reduced. The new genus is tentatively included within Nannopodidae because of some putative synapomorphies shared with the genera Rosacletodes, Huntemannia, Laophontisochra and Acuticoxa. © 2012 Copyright Taylor and Francis Group, LLC. Source

Fonseca A.L.,University Estadual Of Minas Gerais | Silva R.A.,University Estadual Of Minas Gerais | Fux B.,Federal University of Espirito Santo | Madureira A.P.,Federal University of Sao Joao del Rei | And 2 more authors.
Revista da Sociedade Brasileira de Medicina Tropical

Introduction: The aim of the present study was to analyze the exposure to risk factors for toxoplasmosis disease and the level of knowledge in pregnant women who were treated by the Public Health Care System (SUS) from October 2007 to September 2008 in Divinópolis City, Brazil. Methods: We analyzed 2,136 prenatal exams of pregnant women that were treated from October 2007 to September 2008. Results: Out of the 2,136 pregnant women evaluated, 200 answered a quantitative questionnaire; 49.5% were seropositive for immunoglobulin (Ig) G and 3.6% for IgM. Comparative analysis of congenital toxoplasmosis cases were evaluated in 11 regions and showed an irregular distribution (p < 0.01). This difference was also observed among the pregnant women observed in each location. The results from the questionnaire show that 93% of the pregnant women had no knowledge about toxoplasmosis, and 24% presented with positive serology, but no clinical manifestation. Analysis for pregnant IgG-positive women and the presence of pets showed a statistically significant correlation (p < 0.05), suggesting that the transmission of this disease might occur in the domestic environment. Conclusions: We suggest the implementation of a triage program for pregnant women and health education to encourage their use of SUS services. Source

Discover hidden collaborations