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Teacher
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CHITI Tommaso
(syllabus)
• Pedology, soil, biogenetic spheres, importance and functions of the soil (2 hours);
• The factors of pedogenesis: climate, perent material, morphology, organisms, time, man - (2 hours);
• Silicates, phyllosilicates, allophanes. Oxides and hydroxides. Other non-silicate minerals - (4 hours);
• Soil in the countryside: superficial horizons (epipedon), deep horizons (endopedon) - (2 hours);
• The solid, liquid and gaseous phases of soil. Real and apparent texture. Aggregation status; Formation and stability of aggregates. Porosity. Real and apparent density. Particle size analysis - (2 hours).
• Organic substance and carbon cycle - (2 hours);
• Physical, chemical and chemical-physical absorption. Mechanism of cation exchange. Factors influencing cation exchange. Exchange cations. Acid, alkaline, saline soils. Exchangeable active acidity - (4 hours);
• Soil pH and its measurement. Acid-base equilibria in the soil. Effect of pH on biological activity and on the availability of nutrients. The buffering power of the soil. Soil redox potential. Soil organisms and trophic interactions. Soil microorganisms and their role in the nutrient cycle - (4 hours);
• The hydrogeological cycle - (2 hours);
• Water regime; control of the water regime; water balance. Different fractions of water in the soil: maximum water capacity (C.I.M.); field water capacity (C.I.C.); withering point; hygroscopic water; water available; soil absorbing power - (4 hours).
• The cycle of soil nutrients - (4 hours);
• The nutrients needed for plant growth; the nitrogen cycle - (2 hours);
• Different soil management regimes: Conventional, Conservative, Organic - (2 hours);
• Planting operations of a vineyard - (2 hours);
• Terroir and wine production - (2 hours);
• The Terroir of sedimentary areas - (2 hours);
• The Terroir of metamorphic areas (2 hours);
• The Terroir of the moraine areas - (2 hours);
• The Terroir of volcanic areas (2 hours).
4 hours of on-site training with visit to a sustainable viticultural winery in the Viterbo area
(reference books)
Costantini E. e P. Bugelli (2008). Suolo, vite ed altre colture di qualità: l’introduzione e la pratica dei concetti “terroir” e “zonazione”
Lesson material provided by the teacher
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