Credit hours
In-class work per week |
Practice per week |
Credits |
Duration |
Total |
3 |
3 |
8 |
15 weeks |
120 hours |
Instructor
Murilo Mesquita Baesso
Objective
The course aims to give students: Knowledge of the physical and dynamic properties of soils, which are important for the machine-soil relationship; Knowledge of the main machines and tools used in crop systems and their interaction with the soil and the plant; Knowledge of the effects of the use of agricultural machines on soil compaction and its effect on plant development.
Content
1. Evolution of agricultural machinery
* 1.2. History and current situation;
* 1.3. Bases and concepts of evolution.
2. Physical properties of soils
* 2.1. Soil texture;
* 2.2. Soil structure;
* 2.3. Soil porosity;
* 2.4. Soil and particle density.
3. Dynamic properties of soils
* 3.1. Soil stresses and their distribution;
* 3.2. Soil bearing capacity;
* 3.3. Soil deformations and their distribution.
4. Soil potential for traction development *
4.1. Dynamic analysis of soil as a traction medium;
* 4.2. Theoretical rolling resistance;
* 4.3. Effect of tire inflation; * 4.4. Effect of soil surface;
* 4.5. Effects of soil parameters on traction.
5. Machines and tools for soil mobilization and their interaction with the soil
* 5.1. Introduction and characterization of the main machines and tools;
* 5.2. Periodic soil preparation machines;
* 5.3. Planting machines;
* 5.4. Cultural handling machines;
* 5.5. Harvesting and transportation machines;
* 5.6. Soil properties altered by the preparation system;
* 5.7. Vegetative cover after soil preparation;
* 5.8. Reactions of the soil to cultivation tools.
6. Soil compaction by machine traffic and its control
* 6.1. Prediction of tire/soil contact;
* 6.2. Prediction of soil compaction;
* 6.3. Methods for evaluating soil compaction;
* 6.4. Soil compaction control.
7. Soil compaction and plant development
* 7.1. Effects of compaction on soil physical properties;
* 7.2. Effects of compaction on the aerial development of plants;
* 7.3. Effects of compaction on the root development of plants.
Bibliography
BASIC BIBLIOGRAPHY:
Silva, S. (2021). Degradação, Recuperação e Renovação de Pastagens. Viçosa: Editora UFV, 2021 181 p.
Reichardt, K. & TIMM, L. C. Solo, planta e atmosfera: Conceitos, processos e aplicações. Editora Manole, 2022 (4a ed.).
BALASTREIRE, L.A. Máquinas Agrícolas. Ed. Manole, 1990, 307p.
HILLEL, D. Environmental Soil Physics. Academic Press. San Diego, 1998, 771p.
HORN, R.; FLEIGE, H.; PETH, S.; PENG, X. Soil Management for Sustainability. Advances in Geoecology 38, 2006, 497p.
MIALHE, L.G. Manual de mecanização agrícola. 1.ed. São Paulo: Editora Agronômica Ceres, 1974, 301p.
SOANE, B.D.; VAN OUWERKERK, C. Soil compaction in crop production. Developments in Agricultural Engineering 11, 1994, 662p.
COMPLEMENTARY BIBLIOGRAPHY
BARGER, E.L.; LILJEDAHL, J.B.; CARLETON, W.M.; McKIBBEN, E.G. Tratores e seus Motores. Ed. Edgard Blücher, 1963, 398p.
CAMARGO, O.A. Compactação do solo e desenvolvimento de plantas. Campinas : Fundação Cargill, 1983. 44p.
REICHARDT, K.; TIMM, L.C. Solo, Planta e Atmosfera. Ed. Manole, 2004, 478p.
JOURNALS:
Crop Science;
Scielo;
Sociedade Brasileira de Engenharia Agrícola (SBEA);
Journal of Agricultural Engineering Research;
Agronomy Journal;
Pesquisa Agropecuária Brasileira (PAB);
Ciência Rural.