Brainscape's Knowledge GenomeTM

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


See full index

Bio 4th Yr Mid-yrs > Farming > Flashcards

Farming Flashcards

1
Q

What mineral ions do fertilisers have
What are their uses

A

Nitrates: amino acid
Magnesium: chlorophyll

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

Benefits of organic fertilisers

A

Return nitrates to soil
decaying matter improves soil structure
readily available
wide mineral range

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

Cons of organic fertilisers

A

Slow acting,
Contain pest
Bulky
Less nitrogen content

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

Benefits of using inorganic fertilisers

A

Contents known,
Fast application,
Can replace all lost nitrates
Ez application

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

Cons of using inorganic fertilisers

A

Damage soil structure
Reapplication needed (leach)
Eutrophication (leach, algae bloom, other plants die, bacteria growth, fight for O2)
Expensive

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

Types of pests, how they’re bad and the type of pesticides targeted to them

A

Weed, compete for light, C.D., nitrates, water, herbicides
Insects, decrease SA for photo, Insecticide
Fungi, decrease SA for photo, fungicide

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

What is bio accumulation

A

The accumulation of pesticides along the food chain and reaches a harmful level at the top
As it is fat insoluble (x excreted)

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

Which type of pesticide is more favourable to prevent bio accumulation

A

Biodegradable

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

What is biological control

A

The introduction of another organism which controls the number of pests

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

Types of biological control

A

Herbivores
Natural predators
Sterile males
Parasites
Pathogenic microorganisms
Pheromones

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

Benefits of using pesticides

A

Fast
Eliminates all

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

Cons of using pesticides

A

Not specific
Reapply
Bioaccumulation
May become resistant

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

Pros of using biological control

A

Specific
1 introduction
X chemicals
X resistant

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

Cons of using biological control

A

Slow
X fully eradicate

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

Fish farming in terms of food

A

Feed in small amounts
High protein (growth)

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

Fish farming in terms of cage

A

X move to eat (E conservation)
Prevent other fish from eating the food
Prevent underwater predators (inter specific)
Prevent intraspecific predators
Selective breeding
Move away from faeces (bacteria, decompose, oxygen to resp) to cleaner water w O2

17
Q

How does using a net help with fish farming

A

Prevent aerial predators

18
Q

Biological control used in fish a farming

A

Wrasse

19
Q

Antibiotics and pesticides are used in fish farming

A
20
Q

Name 3 things glasshouses / polythene tunnels control

A

CO2 & temperature: burn fossil fuel
Light: artificial, lengthen daytime

21
Q

How does soil maximise yield

A

Contain nitrate ions: amino acid, proteins, growth and repair
Plough for soil structure: aeration, drainage of minerals and water
Maintain pH calcium salt, neutralise acid rain, effective mineral uptake

Bio 4th Yr Mid-yrs (19 decks)

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