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close this bookBetter Farming Series 04 - The Soil: How the Soil is Made up (FAO - INADES, 1976, 37 p.)
View the document(introduction...)
View the documentPreface
View the documentPlan of work
View the documentWhy we study the soil
close this folderDifferent kinds of land
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View the documentThe soil
View the documentThe subsoil
View the documentThe parent rock
View the documentExamples of different soils
close this folderWhat is soil made of ?
View the document(introduction...)
close this folderSand
View the document(introduction...)
View the documentSandy soils
close this folderClay
View the document(introduction...)
View the documentClay soils
close this folderSilt
View the document(introduction...)
View the documentSilty soils
close this folderHumus
View the document(introduction...)
View the documentWhat humus does
View the documentSome practical advice
View the documentAir in the soil
close this folderWater in the soil
View the document(introduction...)
View the documentCirculation of water in the soil
View the documentPractical advice
close this folderLiving creatures in the soil
View the documentEarthworms
View the documentRats and other animals
View the documentTermites
View the documentOther insects
View the documentMicrobes
View the documentSuggested question paper

Suggested question paper

FILL IN THE MISSING WORDS
The ... is the layer of earth where ... find their food.
Good land should have ... soil.
All soils are not alike. A ... soil contains a lot of sand.
A clay soil contains a lot of ... .
In the soil there is also humus. Humus returns to the soil the ... used by the plant.
Humus improves the ... of soils.
Crop remains ... and ... add humus to the soil.
There are also many microbes in the soil. They ... organic matter and give the soil ... .

ANSWER THE FOLLOWING QUESTIONS

What is the soil?
Why do we call clay soils heavy?
What do you do to get good reserves of water in the soil?
What is the depth of soil of your field?
What is fallow?
Why do you have fallow land?
How can you improve the soil structure?
Is it good to make a brush fire?