Evolution and accumulation of C-CO2 in biogenic and physiogenic aggregates of different agroecological management systems
Determination of mineralizable carbon (C) is based on the evolution of C-CO2, reflecting the activity of soil biota in soil organic matter (SOM) decomposition, and can be used as a testing parameter in agroecological production systems. The objective of the present work was to quantify mineralizable C in aggregates of different biogenic and physiogenic formation pathways in agroecological management systems in the city of Seropédica, state of Rio de Janeiro. Five sampling areas were selected: (1) 10-year agroforestry system (AFS), (2) 15-year full sun coffee (C-SUN), (3) 15-year shaded coffee (C-SHA), (4) 10-year phlegm alleles (FLE), and (5) 6-year no-till planting system with corn and eggplant (NT) in Red-Yellow Argissolo in Seropédica-RJ.Morphological patterns were used to identify the formation pathway (biogenic and physiogenic) of aggregates. In these, fertility, total organic carbon (TOC), and total nitrogen (TN) were evaluated. The evolution and accumulation of C-CO2were determined in the laboratory after 35 days of incubation. The NT area under agroecological management present higher C-CO2 accumulation between the systems with biogenic aggregates and less accumulation in the physiogenic aggregates.
Main Authors: | Pinto, Luiz Alberto Silva Rodrigues, de Moura, Octávio Vioratti Telles, Rossi, Celeste Queiroz, Pereira, Marcos Gervasio, Barros, Fabiana Costa |
---|---|
Format: | Digital revista |
Language: | eng |
Published: |
Universidad Nacional de Colombia - Sede Palmira
2018
|
Online Access: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/67923 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Evolution and accumulation of C-CO2 in different agroecological production systems
by: Loss, Arcangelo, et al.
Published: (2013) -
Biogenic and physicogenic aggregates: formation pathways, assessment techniques, and influence on soil properties
by: Pereira,Marcos Gervasio, et al.
Published: (2021) -
CHARACTERIZATION OF BIOGENIC, INTERMEDIATE AND PHYSICOGENIC SOIL AGGREGATES OF AREAS IN THE BRAZILIAN ATLANTIC FOREST
by: FERNANDES,JÚLIO CÉSAR FEITOSA, et al.
Published: (2017) -
Physicogenic and biogenic aggregates under different management systems in the Cerrado region, Brazil
by: Pinto,Luiz Alberto da Silva Rodrigues, et al.
Published: (2021) -
Vias de formação, estabilidade e características químicas de agregados em solos sob sistemas de manejo agroecológico
by: Rossi,Celeste Queiroz, et al.
Published: (2016)