Total and labile organic carbon content in agroecological system
DOI:
https://doi.org/10.33240/rba.v8i1.49474Keywords:
Organic matter, microbial biomass, decomposition, fumigated soil, organic compostAbstract
In an intercropping lettuce-carrot system submitted to crescent dosages of organic compost (0; 12; 24; 48 Mg ha-1) were monitored carbon from soil microbial biomass (MBC), labile carbon in fumigated soil (LCF), in non-fumigated soil (LCNF), in autoclaved soil (LCA) and total organic carbon (TOC) at 0-10 cm of depth. Pasture and forest areas surrounding the experiment were used as reference. Five samples from soil were evaluated at 8 days before the beginning of the experiment, 0; 6; 60 and 114 days after manuring (dam). LCF was the attribute that presented the most consistent correlation with TOC that is usually utilized to detect changes in soil organic matter. Increasing dosages of organic compost caused the increase of MBC, LCF, LCNF, LCA and TOC. From 60 days after planting and forward, MBC and LCF presented decrease of their levels according to the quality of organic compost. Pasture and forest soils behave as contrasts, holding lower and higher content of carbon of soil, respectively.Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2013 author
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Notice
The copyright of articles published in this journal remains with the authors, with first publication rights for the journal.
License
When published in this open access journal, licensed through CC BY 4.0, articles are distributed free of charge and can be shared and adapted for any purpose, including commercial. As attribution of use, the license requires that due credit be given, with a link to the license and indication of changes. This does not mean that the licensor endorses the use of the information in the article, or the person who used this information. It also implies the impossibility of applying legal or technological measures that restrict the use of the information by third parties.
