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close this bookBetter Farming Series 16. Roots and Tubers (FAO, 1977, 58 p.)
View the document(introduction...)
View the documentPreface
View the documentRoots and tubers
Open this folder and view contentsCassava
Open this folder and view contentsYams
Open this folder and view contentsSweet potatoes
Open this folder and view contentsTania and taro
View the documentSuggested question paper

Suggested question paper

FILL IN THE MISSING WORDS

Cassava is grown chiefly for its ....................................................
After a crop of cassava, the field must be left ................................
.............................................................never has an aerial stem.
Yams and cassava contain .........................................................
To propagate yams, plant ...........................................................
The roots of cassava become large and fat by storing up ...............
........................................................................................
It is better to plant sweet potatoes on .........................................
To propagate cassava, plant .....................................................
Sweet potatoes are a food rich in ..............................................
The leaves of ...................................................can be eaten.

ANSWER THE FOLLOWING QUESTIONS

When should organic manure be applied?

What is the place of yams in a crop rotation? Why?

What are the chief diseases and pests of sweet potatoes?

How do you control the diseases and pests of sweet potatoes?

What is the place of cassava in a crop rotation? Why?

What plants with tubers are grown where you live?

How do you propagate sweet potatoes?

When should yams be harvested?

What is the purpose of crop rotation?

How is cassava harvested where you live?

What do you do to get rid of the poison in cassava tubers? Or in yams?

Why is weeding necessary?

How do you store your harvest of yams? Sweet potatoes? Tania and taro?

How do you choose the cuttings of cassava and sweet potato?

Draw a leaf of tania and one of taro, showing the difference between them.

Explain the difference between a tania leaf and a taro leaf.