Determinação da humificação da matéria orgânica de um latossolo e de suas frações organo-minerais

Química Nova

Célia Mara Favoretto²  Daniele Gonçalves²  Débora M. B. P. Milori¹  Jadir Aparecido Rosa¹  Wellington Claiton Leite¹  André Maurício Brinatti¹  Sérgio Da Costa Saab¹ 

[1] ,Universidade Estadual de Ponta Grossa Departamento de Química Ponta Grossa PR ,Brasil

关键词: humification;    LIF;    whole soil;   

DOI  :  10.1590/S0100-40422008000800015

来源: SciELO

【 摘 要 】

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 <2 µm.

【 授权许可】

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