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Author(s): OLIVEIRA, J. M.; GOLLANY, H. T.; POLUMSKY, R. W.; MADARI, B. E.; LEITE, L. F. C.; MACHADO, P. L. O. A.; CARVALHO, M. T. M. Land degradation and reduction in productivity have resulted in losses of soil organic carbon (SOC) in agricultural areas in Brazil. Our objectives were to 1) evaluate the predictive performance of CQ... ... |
Author(s): SANTOS, E. S. N. dos; CAMPOS, M. C. C.; SOUZA, F. G. de; CUNHA, J. M.; PINHEIRO, E. N.; LIMA, A. F. L. de; BRITO, W. B. M.; WADT, P. G. S. Studies related to the monitoring of soil quality by physical attributes are important for the evaluation and maintenance of the sustainability of agricultural systems, besides indicating the appropri... ... |
Author(s): SOMAVILLA, A.; SCHOENINGER, K.; CASTRO, D. G. D. de; OLIVEIRA, M. L.; KRUG, C. Diversity of wasps (Hymenoptera: Vespidae) in conventional and organic guarana (Paullinia cupana var. sorbilis) crops in the Brazilian Amazon. The present study aimed to determine the diversity of was... ... |
Author(s): ENSINAS, S. C.; SERRA, A. P.; MARCHETTI, M. E.; SILVA, E. F. da; PRADO, E. A. F. do; LOURENTE, E. R. P.; ALTOMAR, P. H.; POTRICH, D. C.; MARTINEZ, M. A.; CONRAD, V. do A.; JESUS, M. V.; EL KADRI, T. C. The purpose of this research was to identify the soil organic matter (SOM) fractions changes in a crop rotation system under no-till system (NTS). This research was carried out from October 2010 to Fe... ... |
Author(s): SILVA, R. de O.; SCORZA JUNIOR, R. P.; BONFÁ, M. R. L.; CAMPANARI, M. F. Z.; MENDES, I. de C. ABSTRACT: Organic residues from sugarcane crop and processing (vinasse, boiler ash, cake filter, and straw) are commonly applied or left on the soil to enhance its fertility. However, they can influen... ... |
Author(s): MAROUELLI, W. A.; LAGE, D. A. da C.; GRAVINA, C. S.; MICHEREFF FILHO, M.; SOUZA, R. B. de Objetivou-se avaliar a influência da irrigação por aspersão e por gotejamento na produção organica de tomate de mesas cultivar Duradouro em cultivo solteiro e consorciado ao coentro. |
Author(s): PASSOS, A. M. A. dos; REZENDE, P. M. de; CARVALHO, E. R.; AKER, A. M. The study aimed to evaluate the residual effects of the organic amendments poultry litter, farmyard manure and biochar combined with mineral fertilizer on some agronomic attributes of a soybean crop. |
Author(s): OLIVEIRA, G. F. de; MAFRA, A. L.; CORREA, J. C.; HENTZ, P.; CECHETTO, M. Abstract: Application of organic fertilizers of animal origin can increase organic carbon in the soil and increase its content in macroaggregates. This study aimed to evaluate carbon contents and frac... ... |
Author(s): VIANA, J. H. M.; ALVARENGA, R. C.; ALBUQUERQUE FILHO, M. R. de; COSTA, A. M. da; MOURA, M. S. de Soil organic matter (SOM) is sensitive to changes in land use and is a key indicator of soil quality. This work evaluates the evolution of the organic matter of an oxisol under a crop-livestock integr... ... |
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