Results 81 to 90 of about 718 (157)

Semi-detailed survey of soils of Ceará’s semiarid region: Lavoura Seca Experimental Farm

Revista Ciência Agronômica, 2020
The semiarid region of northeastern Brazil has more than 53 million inhabitants who depend, directly or indirectly, on the resources that the region offers. Among these resources, the soil is highlighted as one of the most important.
Ryshardson Geovane Pereira de Oliveira e Silva, Jaedson Cláudio Anunciato Mota, Raul Shiso Toma   +2 more
doaj   +1 more source

Modèle SIBC pour la simulation FDTD d'une cible recouverte de métamatériaux

, 2022
Pour contrôler la diffraction d'une cible éclairée par une onde radar, une technique est d'utiliser des métamatériaux avec des propriétés d'absorption ou de redirection du champ. Leur prise en compte dans les outils de simulation peut s'avérer complexe surtout lorsqu'ils sont appliqués sous forme de couches minces hétérogènes à la surface de la cible ...
Gaucher, S, Reineix, Alain, Guiffaut, Christophe, Cessenat, O   +3 more
openaire   +1 more source

Granulometric and oxidizable carbon fractions of soil organic matter in crop-livestock integration systems

, 2017
The identification of the labile and recalcitrant forms of soil organic matter (SOM) allows to rapidly define, or even predict if the management used favors increments or losses of carbon in the soil.
W. Bieluczyk, M. G. Pereira, Roni Fernandes Guareschi, J. A. Bonetti, Vanessa Aparecida Fréo, Eduardo Carvalho Silva Neto   +5 more
semanticscholar   +1 more source

CHARACTERIZATION OF YELLOW LATOSOLS (OXISOLS) OF SERRA DO QUILOMBO, IN PIAUÍ STATE SAVANNA WOODLANDS-BRAZIL

, 2016
The savanna woodlands of Piauí state has great economic importance since it is an area for agricultural expansion, being the fourth most important of Brazil and the first from Brazilian Northeastern.
Rossanna Barbosa Pragana, V. S. S. Júnior, Renan Martins dos Santos, Moura, J. M. Soares   +4 more
semanticscholar   +1 more source

Regressões Logísticas Múltiplas: fatores que influenciam sua aplicação na predição de classes de solos

Revista Brasileira de Ciência do Solo, 2011
Métodos mais eficazes para determinação do padrão de distribuição de classes de solo na paisagem precisam ser avaliados visando suprir a demanda por mapas de solo em escalas regional e global.
Alexandre ten Caten, Ricardo Simão Diniz Dalmolin, Fabrício Araújo Pedron, Maria de Lourdes Mendonça-Santos   +3 more
doaj   +1 more source

Gypsic soils in the Brazilian Semiarid [PDF]

Revista Brasileira de Ciência do Solo
Globally, soils with gypsic horizons cover approximately 1 million km², predominantly in arid climates. The formation of pedogenic gypsum in soils has been a topic of discussion in pedological studies for some time, with gypsification representing the ...
Artur Henrique Nascimento da Silva, Marilya Gabryella Sousa, José Coelho de Araújo Filho, Marcelo Metri Corrêa, Xose Lois Otero, Tiago Osório Ferreira, Maria Augusta Maciel Alves Correia, Valdomiro Severino de Souza Júnior   +7 more
doaj   +1 more source

Sombric horizon: five decades without evolution

Scientia Agricola, 2015
The sombric horizon is a diagnostic subsurface horizon defined in the soil classification system of the United States (Soil Taxonomy) and FAO (WRB), used to classify the soil at different categorical levels.
Jaime Antonio de Almeida, Antônio Lunardi Neto, Pablo Vidal-Torrado   +2 more
doaj   +1 more source

Caracterização e classificação de solos em uma topossequência sobre calcário na serra da Bodoquena, MS Characterization and classification of soils in a toposequence on limestone in the Serra da Bodoquena, Mato Grosso Do Sul, Brazil

Revista Brasileira de Ciência do Solo, 2013
A serra da Bodoquena, localizada no Estado do Mato Grosso do Sul, apresenta particularidades nos seus solos, que diferem de outras regiões do bioma cerrado-pantanal.
Marcos Gervasio Pereira, Jolimar Antonio Schiavo, Ademir Fontana, Antonino Hypólito Dias Neto, Luiz Paulo Montenegro de Miranda   +4 more
doaj  

CHARACTERIZATION OF YELLOW LATOSOLS (OXISOLS) OF SERRA DO QUILOMBO, IN PIAUÍ STATE SAVANNA WOODLANDS - BRAZIL

Revista Caatinga, 2016
The savanna woodlands of Piauí state has great economic importance since it is an area for agricultural expansion, being the fourth most important of Brazil and the first from Brazilian Northeastern.
ROSSANNA BARBOSA PRAGANA, VALDOMIRO SEVERINO DE SOUZA JUNIOR, REGIANA DOS SANTOS MOURA, JORDÂNIA MEDEIROS SOARES   +3 more
doaj  

DISCUSSÕES SOBRE O CONCEITO DE ESCALA E OS MAPEAMENTOS DE SOLOS NO BRASIL

Caminhos de Geografia, 2012
Os primeiros levantamentos de solos do Brasil datam da década de 50 até meados dos anos 80, graças às expedições lideradas projeto RadamBrasil o que cominou na carta de solos do Brasil.
Joildes Brasil dos Santos
doaj