The management with grinding of vegetation favors increase in organic matter and forms of phosphorus in the soil.
DOI:
https://doi.org/10.14808/sci.plena.2015.090201Keywords:
soil sustainability, shifting cultivation, phosphorus fractionationAbstract
This study aimed to evaluate the levels of organic matter and phosphorus with its fractions in a yellow argisol under annual crops growing submitted to fallow. The regenerative vegetation, in fallow periods was submitted to management with cut, grinding and deposition on soil or burning practices. Thus, three treatments were considered: System with Slash and burn of secondary forest (MQ); System with cut and grinding of secondary forest (MQ); Secondary forest in 40 years of fallow (FS). From samples of each area, it was analyzed: organic matter (MO); total phosphorus (Pt); total labile phosphorus (Ptl); organic labile phosphorus (Pol); inorganic labile phosphorus (Pil); and available phosphorus (Pd). The biggest values of Pt were found in FS due to the higher state of edaphic balance that was found in this treatment. The soil under management with deposition of plant residues (MT) showed the highest values of organic matter and of the total labile (Ptl), organic labile (Pol), inorganic labile (Pil) and available (Pd) fractions in comparison with forest burning management (MQ), which in turn, in comparison with the soil of a forest in fallow for 40 years, showed lowest values of this variables, except for Pt. The management with plant residues conservation in the system proved to be beneficial to increase organic matter and intake of phosphorus fractions in the soil, oppositely to presented by the forest burning system.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work