Results 31 to 40 of about 9,076 (227)
BioResources, 2015 To avoid undesired polymerization and maximize the selectivity of alkyl levulinate from the acid-catalyzed conversion of biomass-derived furfuryl alcohol, the effects of catalyst and reaction parameters on the formations of humin and alkyl levulinate ...
Xueying Gao +3 more
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Química Nova, 1999 The radiocarbon dating of the soil organic matter (SOM) is a polemic subject, due mainly to the complexity of the formation of the soils and to the variable contamination from several sources.
Susy Eli Marques Gouveia +2 more
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Accumulation of humic substances in an Oxisol fertilized with pig slurry for 15 years [PDF]
Revista Brasileira de Engenharia Agrícola e Ambiental, 2021 The growth of swine production in Brazil has increased the amount of production and use of pig slurry (PS) as soil fertilizer. This product provides nutrients to plants, and a continuous application of this residue usually increases total soil organic ...
Wagner Sacomori +4 more
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Bioscience Journal, 2019 Soil organic matter has a strong relation to total organic carbon, and about 85% of organic carbon consists of humic substances (HS), classified as humin (HU), humic (HA) and fulvic acids (FA), and denominated as recalcitrant carbon in soil.
Joseph Elias Rodrigues Mikhael +4 more
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Indonesian Journal of ChemistrySolid hydrolysate and biochar 2:1 are synthetic humus from hydrothermal carbonization of chicken feather waste and contain humin that can be isolated by IHSS method. The recalcitrant humin is obtained in solid form.
Siti Dewi Fatimah +2 more
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International Journal of Bio-Resource and Stress Management, 2023 An experiment was conducted in the experimental farm at School of Agricultural Sciences and Rural Development, Medziphema, Nagaland to evaluate the impact of different nutrient management practices on content and quality of soil humus in a newly ...
Manoj Dutta, B. S. Chauhan
doaj
EPR and DRIFT spectroscopic characterization of humic fractions during composting of sawdust and paper mill sludge. [PDF]
, 2015 The spectroscopic characteristics (DRIFT, UV-visible and EPR) of humic fractions were studied during composting of sawdust and paper mill sludge. Infrared spectroscopy reveals a compost rich in hydroxyl and alkyl groups and carboxylates and carbohydrates.
FUKAMACHI, C. R. B. +3 more
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Pesquisa Agropecuária Brasileira, 2000 Avaliou-se, em um Latossolo Roxo, o efeito de diferentes formas de manejo do solo sobre a matéria orgânica do solo e na biomassa microbiana. Os tratamentos usados foram: mata natural; mata natural até 1976 e café até 1994 (amostragem na projeção da copa ...
MILTON MARCHIORI JÚNIOR +1 more
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Revista Brasileira de Ciência do Solo, 2009 As turfeiras são Organossolos que resultam de condições ecológicas ideais ao acúmulo de material orgânico, controladas pelos sistemas geomorfológicos e processos geológicos e climáticos globais.
Alexandre Christófaro Silva +5 more
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Geosciences, 2021 Tufa is a fresh-water surface calcium carbonate deposit precipitated at or near ambient temperature, and commonly contains the remains of macro- and microphytes. Many Holocene tufas are found along the Zrmanja River, Dalmatian karst, Croatia.
Jadranka Barešić +6 more
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