5.2 Soil Preparation

Question 1

What are the 3 main factors taken into consideration when ensuring soil is suitable for growing grapes?

Answer 1

1. Drainage and structure
2. Mineral composition
3. Presence of pests or unwanted plants

Question 2

What are the 4 main effects of soil structure on grape growing?

Answer 2

1. root penetration
2. water drainage
3. nutrient holding capacity - can be improved
4. workability -

Question 3

What are 5 common soil practices that may need to occur before vines are planted?

Answer 3

1. Removing large rocks near the surface
2. Subsoiling: breaking down a plough pan (a layer of impervious soil that formed after years of ploughing)
3. Removing old roots (burned to prevent disease)
4. Applying herbicides to treat weeds
5. Applying manure, compost, fertilizers to increase nutrients