Food Production

Question 0

Why are they needed

Answer 0

As plants grow they use up minerals from the soil so fertilises put the minerals needed for Plant growth back in the soil

Question 1

What are fertilisers

Answer 1

Chemicals added to soil to improve the fertility of the soil

Question 2

How do you fertilises improve crop growth

Answer 2

They provide vital minerals needed for plant growth

Question 3

What are two types of fertilisers

Answer 3

Organic/natural-fertilisers made from plant or animal waste e.g manure or broken down plants matter

Question 4

How are fertilises made

Answer 4

Made from the harbour process

Question 5

What are some advantages of organic fertilisers

Answer 5

Are readily available. less danger of over fertilisation. improve soil workability. vastly improves water holding capacity is of sandy soil. Less chance of minerals leaching into waterways

Question 6

What are the disadvantages of organic fertilisers

Answer 6

They are not automatically available to plants due to slow decomposition apply autumn as they act in the spring. Hard to tell at how much you need to apply

Question 7

What are the advantages of inorganic fertilisers

Answer 7

Nutrients are immediately available to the plant so can apply during maximum period of growth. The exact amount off a given element can be calculated and given to plants

Question 8

What are disadvantages of inorganic fertilisers

Answer 8

If used year-on-year the soil particles become dry and fine leading to soil erosion. It’s expensive. The application which is too heavy or too close to the roots of the plant may cause burning. Commercial fertilisers especially nitrogen is easily washed below the level of plants roots systems through leaching

Question 9

What is a pest

Answer 9

An organism that decreases crop yield by either damaging the crop or preventing it from entering the human food chain

Question 10

How do you control pests

Answer 10

1) biological control
2) chemical pesticides
3) combination of the two