ANALYTIC DESCRIPTION OF THE SOIL RESISTANCE TO THE PENETRATION
DOI:
https://doi.org/10.13083/reveng.v21i1.325Keywords:
compactación del suelo, modelos no lineares, siembra directa.Abstract
Despite the absence of uniform criteria for evaluating soil compaction most authors recommend the soil resistance to the penetration as the main indication. This work aimed to develop statistical models to express the mentioned resistance, depending on the depth and soil moisture by means of experimental data. The soil was classified as yellow ferralitic, under no-tillage in the last five years with maize and beans. It was used an electronic penetrometer of brand PNT 2000. The data were collected in three moisture levels (about 20%, 32% and 40%) with the depth ranging from 0 to 0.60 m. For the data processing it was used softwares CurveExpert 1.4 and STATISTICA 8.0. The most appropriate models were selected according to the coefficient of determination, the deviations between observed and predicted values and the magnitude of the waste. It was concluded that the soil resistance to the penetration can be described analytically by non-linear models and these can be a useful tool to infer soil compaction depending on soil moisture.Downloads
Downloads
Additional Files
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
The author(s) authorize(s) the publication of the text in the journal;
The author(s) ensure(s) that the contribution is original and unpublished and that it is not in the process of evaluation by another journal;
The journal is not responsible for the views, ideas and concepts presented in articles, and these are the sole responsibility of the author(s);
The publishers reserve the right to make textual adjustments and adapt texts to meet with publication standards.
From submission, the author is fully conceding the paper's patrimonial rights to the publication, but retaining the owner of its moral rights (authorship and paper's identification) according to Creative Commons Attribution-Noncommercial.