Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

AGB 315 > Midterm 1. > Flashcards

Midterm 1. Flashcards

(62 cards)

Start Studying
1
Q

State with most organic farms

A

CA

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

Father of biodynamics

A

Rudolf Steiner

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

3 legs of sustainability

A

Environmental

Social

Economic

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

4 principles of the organic approach

A
  1. Proactive
  2. Practices and inputs evaluated for their effects
  3. Timing and observations
  4. Constant improvement
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Highly tolerant field crops to acidity

A

Cereal rye
Oats
Lupins
Triticale

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

Highly sensitive field crops to acidity

A

Luceme
Medics
Barley
Canola

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

Plant material

A

Seed = organic

Annual transplants

Perennial stock = organic

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

Farm plan

A

Building and maintaining soil fertility & plant health

Crop rotations

Org. Amendments

Pest/disease management

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

Buffer zone

A

To protect crops from pesticides or GMO pollen

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

Tillage

A 
Minimize tillage 
Avoid wet soils 
Shallow 
Combine tillage operations and passes 
Spring preferred
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Crop rotation

A

The successive cultivation of different crops in a specified order on the same fields

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

Objectives of crop rotations

A

Improve soil
Increase nutrients and OM
dec. weed pressure
Reduce tillage, weed, erosion

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

Allelopathy

A

Chemicals released from plants that affect growth, health, etc.

Released by roots leaves residues

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

Crops rotation disadvantages

A 
More management planning 
Time
Equipment 
Skills
Profits (strawberries)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Conventional v. Organic meta analysis

A

Org. Yields ~ -13% of conventional yields

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Highest per capita consumption of organic food

A

Switzerland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Highest market for organic food

A

US

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Majority size of organic farms

A

< 100 acres

55%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

State with most organic farms

A

CA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

True believers

A

Health nuts

~ 65k/year
~40 yr/old
College dregrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Enlightened environmentalists

A

Protect environment

~63 yr/old
~ 57k/year
Maybe grad school

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Strapped seekers

A

Live healthy
Know they should be more so
~ 45k/year
All levels of education

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Indifferent traditionalists

A 
Leads simple life 
Not very healthy 
~ 46k/year 
~ 65 
HS ed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Healthy realists

A

Fit/healthy
~ 39 years old
~ 65k/year
Maybe college

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Struggling switchers
Budget Know better but don’t ~ 56k/year ~ 39 years old
26
Resistant non believers
Loyal to what they know HS diploma ~ 52 y/o ~ 48k/year
27
Consumers of organic
1. True believers 2. Enlightened environmentalists 3. Strapped seekers 4. Indifferent traditionalists 5. Healthy realists 6. Struggling switchers 7. Resistant non believers
28
Permaculture
David Holmgren A system of Ag and social design principles centered around simulating or directly utilizing the patterns and features observed in natural ecosystems
29
What plant group is the least tolerant to soil acidity?
Legumes
30
Soil health principles include:
Minimizing disturbance and soil cover
31
What statement is wrong with regard to tillage effects?
Tillage can increase soil aggregate stability
32
One way to reduce weed seed in manure:
Composting
33
According to the national organic program, all the following have to be certified except:
Farmers
34
What statement is false with regard to composting manure for certified organic use?
Compost from conventional manure not allowed
35
Which statement is false with regard to planting stock in certified organic systems?
Hybrids are not allowed
36
This situation results in the narrowest buffer zone between organic and conventional crops:
A thick tree stand between crop and neighbor
37
Which statement is false with regard to planting stock in organic certified systems?
Organically grown seeds have always to be used
38
Which statement is false with regard to tillage recommendations in certified organic systems
Deep tillage is preferred over shallow tillage
39
The first split between organic and conventional Ag happened with:
Development of super phosphate
40
The Ag production system that is influenced by mystical and celestial factors is:
Biodynamics Ag
41
The per capita consumption of organic food is highest in:
Switzerland
42
Among vegetables, the crop with the highest share of organic sales is:
Lettuce
43
Among the following, the system that is governed by a regulation is:
Organic production
44
The book “An Agricultural Testament” was throes by:
Albert Howard
45
No tillage, no pruning, no fertilizing are all principles of:
Natural farming
46
The certification used for biodynamic Ag is called:
Demeter
47
What’s the difference between organic and conventional fertility management?
Prohibition of the use of synthetic fertilizer materials
48
What are organic materials made of?
``` Meat Bones Feathers Seed Composts Animal manure Fish ```
49
What are soils organic matter levels in CA?
< 1% to > 3%
50
How much organic matter in Ibs would a soil with 1% organic matter have?
40000
51
How many Ibs of N would a soil with 40000 Ibs of organic matter have?
28000 Ibs
52
What does the N concentration of a cover crop tell us?
How rapidly N will become available
53
How does soil temp. Influence soil activity?
Speed of N mineralization Biological activity
54
Sources of phosphorus are:
Compost Manure Bones meals
55
What compound is readily available no matter the source?
Potassium
56
What is the optimal ratio for things like Bone meal?
4-4-2
57
What’s the goal of organic soil N fertility?
Build up levels of soil OM to inc. N that the souls can mineralized
58
How much N was mineralized in 8 weeks in Lettuce?
35Ibs
59
How much N was mineralized in 8 weeks of Spinach?
26-32Ibs
60
How much N was mineralized in 8 weeks of Broccoli and Cauliflower?
80-180Ibs
61
Common dry organic fertilizers:
``` Feather Meals Blood meal Meat meal Bone meal Fish meal Chicken manure Alfalfa meal Kelp ```
62
In the pouch study, were pouches on the surface or buried more effective at mineralizing N?
Buried % P ~ same % K was more in ones buried

AGB 315 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions