Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Vineyard Variability > Soil > Flashcards

Soil Flashcards

1
Q

Are the affects of soil more or less difficult to be assessed than climate?

A

More difficult to assess

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In general what are the 4 main things that soil influences

A
  1. Water availability for plants by affecting water holding capacity
  2. Availability of mineral elements
  3. microclimate through properties such as heat accumulation and sunlight reflection
  4. The root growth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What three conditions are considered best for soils in order to plant grapevines

A
  1. Hilly conditions
  2. Well Drained
  3. Low fertility
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Discuss the ranking of viticultural factors for 4 different types of countries

A
  1. Long Tradition (Italy, France) Soil, Climate, Varieties
  2. Industrial Countries A (Germany) Varieties, Climate, Soil
  3. Industrial Countries B (USA) Varieties, Wine making/wine aging, Consumer preference
  4. Commerce exchange countries (China) Consumer preference, Packaging, Wine making
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Soil depth, texture, and porosity affect__________ and consequently the ______ _______ _______

A

Drainage
Water holding capacity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

In very good vineyards, some good wine can be produced during bad vintages true or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why is water accumulation important in Mediterranean areas where rainfall is mainly concentrated in Autumn and Spring?

A

Because water accumulation in the soil allows for a regular water nutrition in summer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Moderate water availability at ripening can be crucial for…

A

Improving fruit quality

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Excessive water in the soil can be…

A

Negative for both fruit composition and bunch health

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How can soils act as a buffer for climatic fluctuations

A

If the soil is well drained and deep roots are able to grow in depth, they are supplied with regular mineral and water nutrition, despite climactic fluctuations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Low fertility in the soil can lead to…

A

vine balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Gravely soils are able to__________________ during the day.
At night they can ____________

A

accumulate heat units

Radiate heat back to the plant supporting fruit ripening

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Gravels are a natural protection against_____ ____
as the ____ _____ is ________

A

Soil Evaporation

underlying soil is moist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Stony soils are important as well because they can….

A

warm up faster than other soils and provide positive consequences for root system activity and bud break

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

5 Horizons in soil

A
  1. O (Organics)
  2. A (Surface)
  3. B (Subsoil)
  4. C (Substratum)
  5. R (Bedrock)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Fertility of soil is….

A

The soils ability to host the crop

17
Q

Higher amounts of silt and clay mean

A

more micropores and more water retention

18
Q

Macroporosity and Microporosity

A

Macroporosity is important as it allows for water drainage
Microporosity is important as it allows for water holding capacity

19
Q

Soil texture is made up of

A

Different percentages of Sand, Silt, and Clay

20
Q

Acidic soils and different pH for soils

A

Extremely Acidic: less than 4.5
Neutral: 6.6 - 7.3
Very strong Alkaline: 9.1 and higher

21
Q

Three most important minerals in soils

A
  1. Nitrogen
  2. Potassium
  3. Calcium/magnesium
22
Q

Important trace elements

A

Mn, B, Cu, Zn: these are important because they are part of several co-enzymes. Their availability is related to pH and active lime in soils

23
Q

Too much or too little Nitrogen

A

Too much can encourage growth and decrease the overall fruit and wine quality

Too little and there is a reduction in the YAN in the juice and there is a reduction in wine quality, particularly in sparkling wines

24
Q

Too much or too little Potassium

Plus a quick note

A

If there is too much there is a fast increase in must and wine pH (especially in warm climates)

If there is too little it limits sugar and color accumulation. Productivity and tolerance to different stresses is reduced.

It has never been demonstrated that excessive Potassium results in higher quality wines

25
Q

Note about calcium and Magnesium

A

They are both antagonistic to potassium by limiting the uptake

26
Q

What can happen with higher percentages of clay in the soil

A

There is a higher potential for water capacity but may decrease water availability

27
Q

What is the primary indicator of fruit quality

A

Brix or TSS

28
Q

What type of relationship can be seen between Yield per vine (Y) and % of Clay (X)

A

Negative relationship

29
Q

What type of relationship can be seen between Brix (Y) and active lime (X)

A

Positive linear

30
Q

Nitrogen in soil can…

A

lower pH

31
Q

Potassium concentration in soil can affect

A

pH

32
Q

Relationship between soil properties and mineral nutrition for Clay soils, calcareous, and Sandy soils

A

Clay soils allow for regular mineral nutrition

Calcareous soils allow for adequate mineral nutrition

Sandy Soils are generally acidic and mineral nutrition is poor

Vineyard Variability (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions