Lesson 5: A three strip trial and continuous cropping Quiz

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Which of these statements is not true?

1 point

In this trial there is a four year rotation for each bed

In this trial, all compost mulches are applied on the surface

In Strip 1 of this trial, the soil is loosened with a fork, and not moved or turned

Two of the three strips are for comparing growth with different composts

Clear selection

Name the main reason for slower growth on the no dig, unmulched strip in year one (Strip 2).

1 point

Weeds grew more in the no dig strip

No compost meant vegetables had to source all their food from soil, where weed roots were using some of it to decompose

Moisture was retained better in the dug strip

Clear selection

Why did I change the trial in May 2014, by adding compost mulches to the beds of Strips 1 and 2? Choose three answers.

1 point

It made digging easier

More time would be needed for weeding if no compost was added

I wanted to grow different vegetables

To have more harvests for the same amount of work

Yields were 50% lower in 2013, from not spreading mulch (compost)

Why did yields from the three strips rise each year until 2017? Choose the answer which covers the most aspects.

1 point

All of these

The beds were full of vegetables for more of the growing season

Planting vegetables which gave more weight per area

Being more ready with summer transplants, to ensure minimum time lost between clearing and replanting

Clear selection

According to what I write here, which is the best way of expressing gratitude to soil?

1 point

Not adding any mulch

Practising no rotation

Regular rotovating

A no dig approach, leaving soil life undisturbed

Clear selection

What do I suggest as a reason for the lower yields in Strip 1 – the forked beds?

1 point

Forking reduces the soil temperature in spring

Water runs through the forked soil too easily

A damaged network of fungi, resulting in plants finding less food and water

Clear selection

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