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 Author(s): SILVEIRA, P. M. da; NASCENTE, A. S.; CARVALHO, M. da C. S. In tropical regions, a greater phytomass addition to the soil can help to improve soil quality. Additionally, the use of limestone is a fundamental practice in weathered soils of these regions. The ob... ... |
 Author(s): FIGUEIREDO, R. de O.; MARKEWITZ, D.; DAVIDSON, E. A.; SCHULER, A. E.; WATRIN, O. dos S.; SILVA, P. de S. The objectives of this study are to investigate chemical changes in stream water in response to land use change under the geologic and soil conditions of the eastern Amazon. We used an upstream-downst... ... |
 Author(s): MELO, T. R. de; FERREIRA, R. R. M.; NAVROSKI, D.; FELTRAN, C. T. M.; TAVARES FILHO, J. Purpose: Sugarcane vinasse is generated in large amounts and can be utilized to improve soil attributes, especially in areas degraded by burns. The aim of the present study was to evaluate the effects... ... |
 Author(s): GOMES, J. B. V.; BOTOSSO, P. C.; LONGHI-SANTOS, T. This work aimed to understand the relationships between araucaria trees and some abiotic factors (soil type, soil organic C and soil nutrient supply) in agroforestry systems (AFS). Soils of two produc... ... |
 Author(s): MARTINS, A. L. da S.; MOURA, E. G. de; CAMACHO-TAMAYO, J. H. The characterization of the soil spatial variability allows a better understanding of the relationships between the soil attributes and the environment. The objective of the study was to evaluate the... ... |
 Author(s): ARCOVERDE, S. N. S.; CORTEZ, J. W.; OLSZEVSKI, N.; SALVIANO, A. M.; GIONGO, V. The inadequate agricultural management in the semiarid region of northeastern Brazil, associated with the fragility of most soils, has caused degradation of the quality of this resource. This study ai... ... |
 Author(s): TEIXEIRA, S. T.; WADT, P. G. S.; PEREZ, D. V.; BERTOTTI, F.; KLIMAS, C. Application of residuals to soil can favor the development of nutrient-poor agricultural areas. The objective of this study was to evaluate changes in the chemical attributes of soil after application... ... |
 Author(s): VEIGA, M. da; PANDOLFO, C. M.; BALBINOT JUNIOR, A. A.; SPAGNOLLO, E. ABSTRACT: The objective of this study was to evaluate the pig slurry application effects on chemical attributes of a Hapludox soil managed under no-tillage system. Treatments consisted of 50, 100 and... ... |
 Author(s): GREGO, C. R.; VIEIRA, S. R.; XAVIER, M. A. Tests to evaluate competition between plants, in general do not consider the soil spatial variability, nevertheless, the uniformity rarely is present and can not be assumed without verification. The a... ... |
 Author(s): ARAÚJO, F. S.; BARROSO, J. R.; FREITAS, L. de O.; TEODORO, M. S.; SOUZA, Z. M. de; TORRES, J. L. R. Conservationist systems of crop management increases the amount of substrate, alters fertility and increases soil biological activity. The objective of this study was to evaluate the influence of soil... ... |
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