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Soil Science (Fach) / Tillage (Lektion)
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- Definition: Tillage Mechanical Manipulation of Soil for ANY Purpose.
- Main types of Tillage operations (5) Primary Tillage Secondary Tillage Planting Weed Management Harvest
- Types of Ploughs (6) Mouldboard Plough Chisel Plough Disc Harrow Rotary Harrow Subsoilers Packers/Seedbed Finishers
- Arrange these crops by how bad their harvest is for the soil. Cereals - Grass - Tuber Crops - Corn Best to worst Grass - Cerals - Maize - Tuber Crops
- Name two mechanical weeding tools Harrow Comb Flame Weeder
- What are the two Mist important forms of soil degradation and how much of the Overall soil degradation do that account for? water & wind erosion together cause 84% of soil degradation Wind 28% Water 56%
- What is the natutal rate of soil erosion? Natural Soil erosion rate: 1t/ha/Fr →0,1%
- What is the current rate of human induced soil erosion? Human Induced Soil Erosion: 10-50t/ha/yr
- How mich soil is lost globaly to erosion each year? Global soil erosion: 75 billion tons per year
- What is the initial cause of soil erosion? The initial cause of soil erosion is poor aggregate stability causes by a loss of SOM which acts as a glue
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- What is the tolerable rate of soil erosion? Limit of tolerable soil erosion: 1,4t/ha/yr
- What is the tolerable rate of soil erosion? Limit of tolerable soil erosion: 1,4t/ha/yr