Determinação da humificação da matéria orgânica de um latossolo e de suas frações organo-minerais Determination of humification degree of organic matter of an oxisol and of its organo-mineral fractions
| Autor: | Célia Mara Favoretto, Daniele Gonçalves, Débora M. B. P. Milori, Jadir Aparecido Rosa, Wellington Claiton Leite, André Maurício Brinatti, Sérgio da Costa Saab |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 31, Iss 8, Pp 1994-1996 (2008) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422008000800015 |
| Popis: | Laser-induced fluorescence spectroscopy was used to determine the humification degree of the organic matter of a whole soil, that is, soil without any physical or chemical treatment. Particle size was determined in physically separated fractions. The humification of organic matter, the depth of the soil and the planting system can be correlated. On the surface of the soil, no tillage provided the smallest humification in comparison with the conventional tillage and reduced tillage. The fractions of the superficial layer of the soil (0-20 cm) indicated larger humification in the fraction from 20 to 53 µm and the smallest in the fraction of |
| Databáze: | Directory of Open Access Journals |
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