Calcareous Soils
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Nutrient cycling between soil and leaf litter in the Cerrado (Brazilian savanna) on eutrophic and dystrophic Neosols
ABSTRACT We evaluated nutrient cycling by measuring leaf litter production and decomposition in the Brazilian savanna (cerrado sensu stricto) on eutrophic (calcareous) and dystrophic (arenitic) Neosols over the same spatiotemporal scale. We installed three transects in the Cerrado with plots in each Neosol type. Areas along the transects were randomly chosen
Acta Bot. Bras.. Publicado em: 08/01/2018
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2. Changes in bacterial community of soil induced by long-term straw returning
ABSTRACT: Straw returning is an effective way to improve soil quality. Whether the bacterial community development has been changed by long-term straw returning in non-calcareous soil is not clear. In this study, the following five treatments were administered: soil without fertilizer (CK); wheat and corn straw returning (WC); wheat straw returning with 276
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-10
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3. Soil Compressibility under Irrigated Perennial and Annual Crops in a Semi-Arid Environment
ABSTRACT In irrigated soils, a continuous state of high moisture reduces resistance of the soil to applied external forces, favouring compaction. The aim of this study was to evaluate the susceptibility to compaction of developed calcareous soils in irrigated annual and perennial cropping systems of the Apodi Plateau, located in the Brazilian semi-arid regio
Rev. Bras. Ciênc. Solo. Publicado em: 20/07/2017
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4. Genesis and Classification of Soils Containing Carbonate on the Apodi Plateau, Brazil
ABSTRACT Information is scarce on the genesis and classification of soils derived from calcareous rocks in the Northeastern region of Brazil. This study describes the morphological, physical, chemical, mineralogical, and micromorphological properties of four soil profiles (P1-P4) located in the Apodi Plateau. A pedogenesis hypothesis and soil classification,
Rev. Bras. Ciênc. Solo. Publicado em: 31/05/2016
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5. Solos calcimorficos de Corumba.
As areas nao-inundaveis entre o Pantanal e a Bolivia onde se situa a cidade de Corumba, possuem solos formados sobre rochas calcarias. Nos distintos niveis geomorfologicos observa-se uma relacao direta entre as variacoes de composicao e estrutura da rocha matriz e o processo evolutivo do solo. Agrupam-se esses solos na subordem dos calcimorficos. Para os sol
Corumbá: EMBRAPA-CPAP. Publicado em: 2011
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6. DESENVOLVIMENTO INICIAL DE SANGUE-DE-DRAGÃO (Croton lechleri MÜLL. ARG.) SOB DIFERENTES CLASSES DE SOLOS, CORRETIVOS E NÍVEIS DE LUMINOSIDADE NA AMAZÔNIA CENTRAL / DESENVOLVIMENTO INICIAL DE SANGUE-DE-DRAGÃO (Croton lechleri MÜLL. ARG.) SOB DIFERENTES CLASSES DE SOLOS, CORRETIVOS E NÍVEIS DE LUMINOSIDADE NA AMAZÔNIA CENTRAL
The specie dragons blood (Croton lechleri) having been calling international attention due the presence of an alkaloid in its latex called taspine known for its antinflammatory, antibiotic and cicatrizing properties, being largely used in the healing of gastric ulcers, diarrhea and different types of viruses. The latex indiscriminated extraction from native
Publicado em: 2009
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7. RECOMMENDATION OF PHOSPHATE AND POTASSIUM FERTILIZATION TO THE MAIN GRAIN CROPS UNDER NOTILLAGE IN PARAGUAY / RECOMENDAÇÕES DE FERTILIZAÇÃO FOSFATADA E POTÁSSICA PARA AS PRINCIPAIS CULTURAS DE GRÃOS SOB SISTEMA PLANTIO DIRETO NO PARAGUAI
The recommendations of fertilization have as main purpose to facilitate and aid the decisions about application of fertilizers necessary to obtain yields of maximum economic efficiency. Pointing out the importance of the numerical tables indications, should be also important the crops and area history, the history of fertilizations and calcareous use, the yi
Publicado em: 2008
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8. Conhecimentos na análise de ambientes: a pedologia e o saber local em comunidade quilombola do norte de Minas Gerais / Knowledge in the environment analysis: the pedology and local knowledge in the quilombola community on northern Minas Gerais
Theren increasing incorporation and appropriation of the epistemologies towards the sustainability, valorization of the man-environment relationships and the perception of the need for maintaining the complexity of the productive systems in response to the environmental degradation process, aggravated by practices of the reductionist paradigms. Local knowled
Publicado em: 2008
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9. Concentration of 226Ra in soil and sugar cane after application of calcareous, gypsum or phosphogypsum / ConcentraÃÃo de 226Ra em solo e em cana-de-aÃÃcar apÃs aplicaÃÃo de CalcÃrio, Fosfogesso ou Gipsita
All kinds of soil possess 226Ra, and its absorption by the plants, depends on the specific characteristics of each region and of the cultivated species. In different parts of the world, radioecological studies are currently developed to evaluate the transferences of 226Ra in the soil-plant system and the presence of this radioelement in human nutrition. In r
Publicado em: 2007
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10. Adensamento do palhiço da cana-de-açucar utilizando helicoides conicos / Compaction of sugar cane trash using helical cones
This thesis aimed to show that agricultural producers could widen their role as consumers of agricultural lime - in Brazil, 70% of farmable soil is considered to be acid and require liming - and that such consumption would contribute to its sustainability, providing gains in the economic, social and environmental spheres. In addition, the use of agricultural
Publicado em: 2007
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11. Relação origem / solo e tolerancia a saturação hidrica de Copaiferalangsdorffii DESF
The maln objectives of this research were: 1) to study the response of Copaifera langsdorffii Desf. of three distinct provenance, "cerrado" (cerrado provenance), gallery forest (gallery forest provenance) and deciduous Torest (deciduous forest provenance), to soils with distinct physical and chemical characteristics; 2) to establish the response of these thr
Publicado em: 1990
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12. Methodological Modifications for Accurate and Efficient Determination of Contaminant Biodegradation in Unsaturated Calcareous Soils
Many techniques for quantifying microbial biodegradation of 14C-labeled compounds use soil-water slurries and trap mineralization-derived 14CO2 in solution wells suspended within the incubation flasks. These methods are not satisfactory for studies of arid-region soils that are highly calcareous and unsaturated because (i) slurries do not simulate unsaturate