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The role of soil organic matter in sustainable crop production in the Tropics. Author(s): FAGERIA, N. K.; FERREIRA, E. P. B.; KNUPP, A. M. Soil organic matter has long been recognized as important indicator of soil productivity. Repository: BDPA Publication year: 2011
Management impacts on soil organic matter of tropical soils. Author(s): CASTRO, G. S. A.; CRUSCIOL, C. A. C.; CALONEGO, J. C.; ROSOLEM, C. A. Increased soil organic matter (SOM) improves the cation exchange capacity of tropical weathered soils, and liming is required to achieve high yields in these soils. Despite a decrease in SOM in the sh... ... Repository: BDPA Publication year: 2015
Methods of soil organic carbon determination in Brazilian savannah soils. Author(s): SATO, J. H.; FIGUEIREDO, C. C. de; MARCHÃO, R. L.; MADARI, B. E.; BENEDITO, L. E. C.; BUSATO, J. G.; SOUZA, D. M. de Several methods exist for determining soil organic carbon, and each one has its own advantages and limitations. Consequently, a comparison of the experimental results obtained when these methods are e... ... Repository: BDPA Publication year: 2014
Soil organic carbon in the brazilian semi-arids tropics. Author(s): GIONGO, V.; GALVÃO, S. R. da S.; MENDES, A. M. S.; GAVA, C. A. T.; CUNHA, T. J. F. The Brazilian semi-arid tropics occupies an area of 969,589 km2 that represents 11% of the national territory and the Caatinga is its most representatives Biome with an area of 844.453 km². However, a... ... Repository: BDPA Publication year: 2011
Organic matter content and composition in a sandy loam Amazonian Acrisol as affected by soil management. Author(s): DICK, D. P.; AQUINO, I. O. de; COSTA, F. de S.; NECKEL, D. The agricultural production in the State of Acre (Brazilian Amazon Southwest) is still very incipient and, so far, none investigation about the effect of soil management systems on organic matter (OM)... ... Repository: BDPA Publication year: 2019
Losses and gains of soil organic carbon in grasslands in the Brazilian semi-arid region. Author(s): MEDEIROS, A. de S.; MAIA, S. M. F.; SANTOS, T. C. dos; GOMES, T. C. de A. Studies show that soil organic carbon (SOC) decreases between 3 % and 9 % in degraded grasslands in tropical regions, mainly due to the absence of techniques to enhance carbon contribution to soils. T... ... Repository: BDPA Publication year: 2021
Cover crops affect on soil organic matter fractions under no till system. 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... ... Repository: BDPA Publication year: 2016
Soil and plant responses to pyrogenic organic matter: carbon stability and symbiotic patterns. Author(s): SAGRILO, E. Soil amendment with pyrogenic organic matter (PyOM) can sequester carbon, increase mutualistic root symbioses with arbuscular mycorrhizal fungi and nitrogen-fixing rhizobia, and hence improve crop yie... ... Repository: BDPA Publication year: 2014
Humic substance fractions and attributes of histosols and related high-organic-matter soils form Brazil. Author(s): VALLADARES, G. S.; PEREIRA, M. G.; ANJOS, L. H. C. dos; BENITES, V. de M.; EBELING, A. G.; MOUTA, R. de O. Knowledge of the distribution of soil organic matter (SOM) fractions is important in managing soils toward a sustainable agricultural system ina tropical environment, However, data on Histosols in lim... ... Repository: BDPA Publication year: 2007
Relationships between labile soil organic carbon fractions under different soil management systems. Author(s): SOUZA, G. P. de; FIGUEIREDO, C. C. de; SOUSA, D. M. G. de ABSTRACT: The study of labile carbon fractions (LCF) provides an understanding of the behavior of soil organic matter (SOM) under different soil management systems and cover crops. The aim of this stu... ... Repository: BDPA Publication year: 2016

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