Results 1 to 10 of about 5,655,227 (298)

Assembly of a marine viral metagenome after physical fractionation. [PDF]

open access: yesPLoS ONE, 2013
Metagenomic analyses of marine viruses generate an overview of viral genes present in a sample, but the percentage of the resulting sequence fragments that can be reassembled is low and the phenotype of the virus from which a given sequence derives is ...
Jennifer R Brum   +2 more
doaj   +2 more sources

Valorization of Rapeseed Meal: Production, Fractionation, and Utilization Routes [PDF]

open access: yesFoods
Rapeseed meal is a major by-product of rapeseed oil production and contains proteins, structural carbohydrates, and bioactive compounds with potential uses in feed, food ingredients, functional materials, and thermochemical products.
Xiaoxian Liu   +2 more
doaj   +2 more sources

Carbon stocks in organic matter fractions as affected by land use and soil management, with emphasis on no-tillage effect [PDF]

open access: yesCiência Rural, 2002
Land use and soil management may affect both labile and humified soil organic matter (SOM) fractions, but the magnitude of these changes is poorly known in subtropical environments.
Cimélio Bayer   +3 more
doaj   +1 more source

Organic matter fractions within macroaggregates in response to long-term fertilization in calcareous soil after reclamation

open access: yesJournal of Integrative Agriculture, 2021
Soil organic carbon (SOC) plays a key role in improving soil quality and optimizing crop yield. Yet little is known about the fate of macroaggregates (>0.25 mm) under long-term fertilization and their relative importance in SOC sequestration in reclaimed
Han-bing CAO   +5 more
doaj   +1 more source

δ13C as a tool to determine the origin of soil organic carbon: Case study of a restored sloping orchard

open access: yesSoil and Water Research, 2023
The effect of drip irrigation on the origin and size fraction of soil organic carbon was studied in the soils of an apple orchard (Malus domestica Borkh.) on hilly (20%) terrain in northeastern Slovenia in three slope positions (upslope, midslope and ...
Mateja Muršec, Jean Leveque
doaj   +1 more source

Influence of land use and occupation on the chemical and physical fractions of organic matter in cultivated and native areas in the Atlantic Forest biome

open access: yesRevista Ambiente & Água, 2022
This study quantified the C content of the chemical and physical fractions of SOM in different management systems in an Argisoil of sandy texture. The study was carried out in a reference area of Native Forest (NF), and in three managed areas: Permanent ...
Giovana Tetsuya Lopes   +7 more
doaj   +1 more source

Model of the Fractionation Process of Three- and Four-Component Biological Mixtures in the Gravity Field [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2020
The publication describes a simplified method of evaluation of basic parameters of the fractionation process in the gravity field of three- and four-component biological mixtures having physical parame-ters similar to peripheral blood. The description of
Andrzej Górka
doaj   +1 more source

Fracionamento densimétrico da matéria orgânica do solo sob diferentes sistemas de manejo e cobertura vegetal em Paty do Alferes (RJ) Densimetric fractionation of organic matter in soil under different tillage and vegetation cover in Paty do Alferes, State of Rio de Janeiro (Brazil)

open access: yesRevista Brasileira de Ciência do Solo, 2004
Sistemas de manejo conservacionistas aumentam o conteúdo de carbono (C) e nitrogênio (N) orgânico do solo. Todavia, os efeitos sobre as frações leves da matéria orgânica do solo (MOS) ainda são pouco conhecidos, especialmente em ambiente tropical.
E. F. M. Pinheiro   +3 more
doaj   +1 more source

Density fractions versus size separates: does physical fractionation isolate functional soil compartments? [PDF]

open access: yesBiogeosciences, 2012
Physical fractionation is a widely used methodology to study soil organic matter (SOM) dynamics, but concerns have been raised that the available fractionation methods do not well describe functional SOM pools.
C. Moni   +4 more
doaj   +1 more source

The Organic Matter of Chernozem

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2017
Theories and points of view of soil science classics, such as V. V. Dokuchaev, I. V. Turin and M. M. Kononva on chernozem organic matter are reviewed in this work.
B. M. Kogut
doaj   +1 more source

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