Food preparation YamStudy pool, section Y3B

Subelement Y3

YAM HARVESTING AND STORAGE

Section Y3B

Harvesting techniques

Y3B01

What traditional tool is commonly used for harvesting yams in smallholder farming systems?

A.
Mechanical potato harvester
B.
Gasoline-powered auger
Correct Answer
C.
Wooden digging stick or hoe
D.
Precision laser cutter

Y3B01

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Y3B02

What technique helps minimize damage to yam tubers during harvesting?

Correct Answer
A.
Carefully removing soil from around the tuber before lifting
B.
Pulling directly on the vines with maximum force
C.
Using high-pressure water jets
D.
Applying heat to the soil surface

Y3B02

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Y3B03

Why is care taken to avoid cuts and bruises when harvesting yams?

A.
For aesthetic reasons only
B.
To prevent the release of toxic gases
C.
To maintain exact weight measurements
Correct Answer
D.
To prevent infection and reduce storage losses

Y3B03

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Y3B04

What characteristic of certain yam species makes them particularly challenging to harvest?

A.
Their tendency to explode upon contact with air
Correct Answer
B.
Their depth and potential length (some growing more than 1 meter deep)
C.
Their ability to move through the soil
D.
Their magnetic properties

Y3B04

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Y3B05

Which approach is recommended when harvesting yams in heavy clay soils?

A.
Flooding the field before harvesting
B.
Harvesting only during the hottest part of the day
Correct Answer
C.
Loosening soil carefully to avoid breaking the tubers
D.
Using explosives to break up the soil

Y3B05

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Y3B06

What should be done with the yam vines during harvest?

Correct Answer
A.
Removed and used for mulch or cut into planting sticks
B.
Burned immediately in the field
C.
Left attached to the tubers during storage
D.
Processed into liquid fertilizer

Y3B06

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Y3B07

How does mechanized yam harvesting differ from traditional methods?

A.
It must be performed underwater
B.
It requires planting yams on trees
C.
It can only be done during winter months
Correct Answer
D.
It uses adapted diggers that lift and expose tubers for collection

Y3B07

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Y3B08

What post-harvest field management practice is recommended in yam cultivation systems?

A.
Immediate replanting of yams in the same mounds
Correct Answer
B.
Planting a rotation crop or cover crop
C.
Leaving the field completely bare for at least one year
D.
Flooding the field for six months

Y3B08

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