Min- and no-till systems
Der Inhalt des Lernpaketes bezieht sich auf die Auswirkungen von Minimalbodenbearbeitung und Direktsaat. Zu Beginn definieren die Schüler*innen mithilfe eines englischen Fachtextes Begriffe aus der konservierende Bodenbearbeitung. Mit einem Video werden Bodenprofile von zwei verschiedenen Bodenbearbeitungssystemen gezeigt und die Unterschiede beschrieben.
| Fächer | CLIL, Landtechnik und Bauen, Pflanzenbau und Grünlandwirtschaft |
| Erstellt von | DI Katharina Brader, BEd., HBLFA Francisco Josephinum Wieselburg |
| Dauer | 1 UE |
| Schulstufe | 9. - 13. Schulstufe |
| Lernziele |
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| Zusatzinformationen | Lernpaket zum Ausdrucken: Student's version |
Activity 1
Work in pairs! Read the text “What are min- and no-till systems?” (page 9) and answer the questions.
a) What are the key practices of conservation tillage?
b) Explain the tillage classes:
- Deep inversion
- Double-layer ploughing
- Shallow inversion
- Non inversion
- Min-till
- No-till
c) What does direct drilling mean?
d) What are possible consequences of direct drilling and no-till systems?
Activity 2
Read "What is the impact of conservation tillage on soil health" on pages 10 and 11 of "To plough or not to plough: Tillage and soil carbon sequestration"
What are your conclusions? We will discuss it together.
Activity 3
Watch the video and then do the exercise.
True or false!
| The soil profile of the fall chisel operation fallowed by a disk operation has an A-horizon of 8-9 inches. (1 inch = 2,54 cm) | |
| Plainfield series are highly productive soils. | |
| Some roots grow to about 3 feet of depth. (1 foot = 30,48 cm) | |
| There is no densification below the tillage zone | |
| The profile of the no tillage side shows a deeper organic matter layer. | |
| The soil feels more mellow | |
| The rooting system looks exactly the same as the rooting system of the cultivated side | |
| The aggregates in the soil surface get broke at the no tillage side. | |
| The spacing between the aggregates is the place where water can be infiltrated |