Results 21 to 30 of about 168 (162)

Carbon pool ratios as scientific support to field morphology in the differentiation of dark subsurface soil horizons

Scientia Agricola, 2015
In soil surveys, it is usual to find profiles with an uncommon disposition of horizons. Dark horizons in depth might be either the consequence of erosion and redeposition of soil materials from upslope or an indication of the podzolization process, which
Maíra Akemi Toma, Phillip Ray Owens, Carlos Alberto Silva, Sérgio Henrique Godinho Silva, Elen Alvarenga Silva, Nilton Curi   +5 more
doaj   +1 more source

Morphology, mineralogy and micromorphology of soils associated to summit depressions of the Northeastern Brazilian Coastal Plains Morfologia, mineralogia e micromorfologia de solos de depressões de topo de Tabuleiros Costeiros do Nordeste Brasileiro

Ciência e Agrotecnologia, 2012
The scarcity of comprehensive characterizations of soils associated to gentle summit depressions of the Northeastern Brazilian Coastal Plains justifies this work, which had as objective to provide basic information for the more diverse agricultural and ...
Elen Alvarenga Silva, João Bosco Vasconcellos Gomes, José Coelho de Araújo Filho, Pablo Vidal-Torrado, Miguel Cooper, Nilton Curi   +5 more
doaj   +1 more source

Seletividade do pirofosfato de sódio e de cloretos não tamponados (CuCl2 e LaCl3) como extratores de alumínio associado à matéria orgânica em solos de restinga do estado de São Paulo Selectivity of sodium pyrophosphate and unbuffered chlorides (CuCl2 and LaCl3) as extractants of aluminum bound to soil organic matter in soils of the sandy coastal plain in São Paulo state

Revista Brasileira de Ciência do Solo, 2010
O Al em complexos com matéria orgânica do solo é comumente determinado por técnicas de dissolução seletiva. Um extrator comum para essa forma do elemento é o pirofosfato de sódio.
Maurício Rizzato Coelho, Pablo Vidal-Torrado, Xosé Luis Otero Pérez, Vanda Moreira Martins, Felipe Macías Vázquez   +4 more
doaj   +1 more source

Evolution of sandy soils within deflation hollows in shifting areas of sand - a case study from the Błędów Desert (Poland)

Soil and Water Research, 2017
Areas of shifting sand are important places for testing the effects of abiotic and biotic factors on soil morphology and evolution, where aeolian processes cause dynamic changes in the natural environment.
Magdalena GUS, Marek DREWNIK
doaj   +1 more source

Dark-humus soils on the updated soil map of Russian Federation scale 1 : 2.5 M

Бюллетень Почвенного института им. В.В. Докучаева, 2021
The dark-humus soil type was included in the updated legend of the Soil Map of the Russian Federation at scale 1 : 2.5 M, converted to the system of Soil Classification of Russia.
T. V. Ananko, M. I. Gerasimova
doaj   +1 more source

Relação solo-relevo-substrato geológico nas restingas da planície costeira do estado de São Paulo Relationship between soil, landscape and geological substrate of the sandy coastal plain of São Paulo state

Revista Brasileira de Ciência do Solo, 2010
Atributos morfológicos de 28 pedons, descritos e amostrados em cronossequências, e datações absolutas por luminescência (TL e LOE) e 14C foram utilizados para elucidar os principais fatores envolvidos na formação e evolução dos Espodossolos nos depósitos
Maurício Rizzato Coelho, Vanda Moreira Martins, Pablo Vidal-Torrado, Célia Regina de Gouveia Souza, Xosé Luis Otero Perez, Felipe Macías Vázquez   +5 more
doaj   +1 more source

Infrared spectra of soil organic matter under a primary vegetation sequence

Chemical and Biological Technologies in Agriculture, 2020
Background We applied Fourier-Transformed Infrared Spectroscopy (FTIR) techniques in combination with selective humus extractions to investigate in situ the chemical features of organic matter in three soil profiles recently developed from Dutch sand ...
A. Nuzzo, P. Buurman, V. Cozzolino, R. Spaccini, A. Piccolo   +4 more
doaj   +1 more source

Spatial Decoupling of Biological and Geochemical Phosphorus Cycling in Podzolized Soils

Soil Systems
Phosphorus (P) is essential to life yet constrained by finite reserves, heterogeneous distribution, and strong chemical binding to soil minerals. Pedogenesis progressively alters the availability of P: in ‘young’ soils, P associated with Ca and Mg is ...
Daniel F. Petticord, Benjamin T. Uveges, Elizabeth H. Boughton, Brian D. Strahm, Jed P. Sparks   +4 more
doaj   +1 more source

Site-Specific Multilevel Modeling of Potato Response to Nitrogen Fertilization

Frontiers in Environmental Science, 2017
Technologies of precision agriculture, digital soil maps, and meteorological stations provide a minimum data set to guide precision farming operations. However, determining optimal nutrient requirements for potato (Solanum tuberosum L.) crops at subfield
Serge-Étienne Parent, Michaël A. Leblanc, Annie-Claude Parent, Zonlehoua Coulibali, Léon E. Parent   +4 more
doaj   +1 more source

Changes in emission regime for nitrogen and sulfur in Germany and its impact on a spruce forest measured over a period of 35 years

Journal of Environmental Quality, Volume 55, Issue 1, January/February 2026.
Abstract In Germany during several decades, emissions and thus the chemical climate affecting forests have changed significantly. The effects of these changes on the element balance of forests can be documented only by long‐term observations, as has been done at the Höglwald site (Southern Bavaria) since 1985.
A. Göttlein, W. Weis, S. Raspe
wiley   +1 more source