Soil chemistry

A.Y. 2019/2020
6
Max ECTS
56
Overall hours
SSD
AGR/13
Language
Italian
Learning objectives
The course presents basic concepts of soil science, with special attention to chemical, physical and biological processes that influence crop production and quality
Expected learning outcomes
The course helps to train professionals able to deal competently agronomic and environmental problems connected with soil management. It also provides criteria and methods for the evaluations of data from soil analysis.
Course syllabus and organization

Unique edition

Responsible
Lesson period
First semester
Course syllabus
The course presents basic concepts of soil science, with special attention to chemical, physical and biological processes that influence crop production and quality. What is a soil ? Mineral and organic constituents . Soil as an open system: profile formation, mass transfer into air and water. Soil as a multicomponent system: gaseous, solid and liquid phases. Soil minerals: parents materials and weathering products. Clays and oxides. Soil organic matter: elemental composition, plant derived biomolecules, humic substances. Types of humus. Carbon cycle. (2CFU) How soil can be described ? Physicochemical properties. Physical properties: texture, structure, real and bulk density, porosity. The interfacial relationship: adsorption and exchange. Surface charges, double layer theory, exchange reactions. Cation and anion exchange. Base saturation. Basics of water interactions in soil: water potential. Soil acidity: what is pH and how it is measured. Chemistry of acid soils and correction of soil acidity: lime requirement. Calcareous soils: effects on nutrient phytoavailability. Saline soils. Soil and nutrients (2 CFU). Biogeochemistry of soil nitrogen, and of soil phosphorus. The bioavailability concept. Influence of root and microrganisms on bioavailability. Evaluation of fertility status by soil analysis. Basics on soil sampling an on the main analitycal methodologies (1 CFU frontal lessons and 2 CFU lab and classroom activities).
Prerequisites for admission
Basic concepts of general chemistry and of organic and inorganic chemistry
Teaching methods
Frontal lessons, practical activities in lab, classroom exercise activities
Bibliography
Sequi P., Ciavatta C., Miano T. (eds). Fondamenti di Chimica del Suolo, Patron ed. 2017, ISBN 9788855533621
Violante P. Chimica del suolo e della nutrizione delle piante. 2 edizione. Ed agricole, 2002 Sequi P. Chimica del Suolo.
Assessement methods and criteria
The exam consists in a written test on the reading and interpretation of a soil analysis report and in an oral interview on the whole program
AGR/13 - AGRICULTURAL CHEMISTRY - University credits: 6
Laboratories: 16 hours
Lessons: 40 hours
Professor: Zaccheo Patrizia
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