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Identification of mineral components in tropical soils using reflectance spectroscopy and advanced spaceborne thermal emission and reflection radiometer (ASTER) data. Author(s): VICENTE, L. E.; SOUZA FILHO, C. R. de Soil characteristics provide important support for understanding transformations that occur in environmental systems. Physical characteristics and chemical compositions of soils controlled by pedogene... ... Repository: BDPA Publication year: 2011
Soil fertility, mineral nitrogen and microbial biomass in upland soils of the Central Amazon under different plant covers. Author(s): MOREIRA, A.; FAGERIA, N. K. Amazon is the largest State of Brazil and major area of the State is covered by a largest tropical rainforest of the world. Most soils of the Amazon region soils are characterized as acidic and infert... ... Repository: BDPA Publication year: 2009
Effects of mineral and organic-mineral phosphate fertilizers on soil fertility parameters. Author(s): SANTOS, D. H.; TIRITAN, C. S.; FOLONI, J. S. S.; FABRIS, L. B. ABSTRACT: Organic sources can replace all or part of the mineral phosphorus used in fertilizer, providing significant changes in soil chemical properties. This research evaluated the effects of minera... ... Repository: BDPA Publication year: 2013
Phosphorus fractions in soil with organic and mineral fertilization in integrated crop-livestock system. Author(s): RIGO, A. Z.; CORREA, J. C.; MAFRA, A. L.; HENTZ, P.; GROHSKOPF, M. A.; GATIBONI, L. C.; BEDENDO, G. C. Abstract: Use of organic fertilizers in integrated crop-livestock (iCL) systems may affect soil phosphorus fractions. This study aimed to determine phosphorus fractions in the soil under the iCL syste... ... Repository: BDPA Publication year: 2019
Soil carbon fractions in response to mineral and organic fertilizer types and rates. Author(s): OLIVEIRA, G. F. de; MAFRA, A. L.; CORREA, J. C.; HENTZ, P.; CECHETTO, M.; ROTERS, D. F.; PRAZERES, M. S.; ANDOGNINI, J. Abstract: The use of organic fertilizers from pig slurry and poultry litter can increase soil organic carbon and crop productivity. This study aimed to evaluate soil organic carbon fractions and corn... ... Repository: BDPA Publication year: 2023
Organic, mineral and organomineral fertilizer in the growthof wheat and chemical changes of the soil. Author(s): MUMBACH, G. L.; GATIBONI, L. C.; DE BONA, F. D.; SCHMITT, D. E.; DALL’ORSOLETTADE, D. J.; GABRIEL, C. A.; BONFADA, E. B. The organomineral fertilizers can release organic compounds during their solubilization, and those compounds can affect the plant growth. The aim of this study was to evaluate the initial development... ... Repository: BDPA Publication year: 2019
Variation in the properties of biochars produced by mixing agricultural residues and mineral soils for agricultural application. Author(s): MATOSO, S. C. G.; WADT, P. G. S.; SOUZA JÚNIOR, V. S. de S.; PÉREZ, X. L. O. The research and application of biochars enriched with minerals have increased in recent years; however, the mineral fraction used consists of specific minerals, such as clay minerals and synthesized... ... Repository: BDPA Publication year: 2020
Changes in soil fertility and mineral nutrition of mango orchards in São Francisco Valley, Brazil. Author(s): SILVA, J. P. S da; NASCIMENTO, C. W. A. do; SILVA, D. J.; CUNHA, K. P. V da; BIONDI, C. M. This research aimed to analyse the soil fertility changes and macronutrient concentration in mango plantations in Petrolina, Pernambuco, Brazil. Samples of soil were collected at depths of 0-20 and 20... ... Repository: BDPA Publication year: 2014
Organic matter and clay mineral crystallinity in soils of a topossequence on Basalt from Southern Brazil. Author(s): HANKE, D.; DICK, D. P.; DIECKOW, J.; MELO, V. F.; BOGNOLA, I. A. Repository: BDPA Publication year: 2014
Microbial carbon, mineral-N and soil nutrients in indigenous agroforestry systems and other land use in the upper Solimões Region, Western Amazonas State, Brazil. Author(s): VILLANI, F. T.; RIBEIRO, G. A. A.; VILLANI, E. M. de A.; TEIXEIRA, W. G.; MOREIRA, F. M. de S.; MILLER, R.; ALFAIA, S. S. Slash and burn cultivation systems carried out by many farmers in the Amazon region lead to changes in biogeochemical cycles of nutrients. To assess the extent of the impact of shifting cultivation on... ... Repository: BDPA Publication year: 2017

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