Lesson 11: Non-organic mulches Quiz

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When using plastic mulches, what is an important thing to know about the material you are using?

1 point

How much heat it generates

How much light it excludes

What colour it is

Clear selection

Before laying a large sheet of polythene (not woven polypropylene), what is the main requirement of soil condition?

1 point

That it has a fine tilth

That it’s moist

That it’s clear of weeds

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Earthworms don’t like the moist darkness under plastic mulches.

1 point

True

False

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Which of these weed categories, plus amounts, most justify the use of a plastic mulch?

1 point

A few perennials

A few annuals

Many annuals

Many perennials

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Which of these should you never do?

1 point

Lay a plastic mulch with compost on top

Walk over an area covered in plastic

Lay plastic on top of compost, which is on top of weeds

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You need to use plastic mulches regularly, after clearing difficult weeds in year one.

1 point

True

False

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It’s fine to butt any mulches up against stems of plants already growing.

1 point

True

False

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Which of these statements is false? Choose two answers.

1 point

Polythene mulches, used for a few months to kill weeds, are bad for soil organisms

You can sow into mulches of compost, unlike polythene mulches

Mulches of organic matter feed soil life, unlike polythene mulches

It’s quicker to mulch a large area with cardboard, compared to polythene

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