 | Better Farming Series 16 - Roots and Tubers (FAO - INADES, 1977, 58 p.) |
 |  | (introduction...) |
| | Preface |
| | Roots and tubers |
|  | Cassava |
| | Description of the plant |
| | Different kinds of cassava |
| | Where is cassava grown? |
| | How to grow cassava |
| | The place of cassava in a crop rotation |
| | Preparing the soil for cassava |
| | How to propagate cassava |
| | How to plant cassava |
| | Looking after the plantation |
| | How to harvest and store cassava |
| | The use of cassava in food |
| | (introduction...) |
| | Fresh cassava and cassava paste |
| | Dried casava and cassava flour |
| | Cooked cassava flours |
| | Starch and tapioca |
| | Cassava leaves |
| | Yams |
| | Description of the plant |
| | There are many varieties of yam |
| | Where are yams grown? |
| | How to grow yams |
| | The place of yams in a crop rotation |
| | How to prepare the soil for yams |
| | How to propagate yams |
| | How to plant yams |
| | Looking after the plantation |
| | Harvesting and storing yams |
| | The use of yams in food |
| | (introduction...) |
| | Fresh and mashed yams |
| | Dried yams and yam flour |
| | Sweet potatoes |
| | Description of the plant |
| | (introduction...) |
| | Varieties of sweet potato |
| | Where are sweet potatoes grown? |
| | How to grow sweet potatoes |
| | (introduction...) |
| | Propagation of sweet potatoes |
| | Looking after the plantation |
| | Yields of sweet potatoes and storing |
| | Sweet potatoes in human food |
| | Tania and taro |
| | (introduction...) |
| | Description of the plant |
| | Tania or Xanthosoma |
| | Taro or cocoyam (Colocasia) |
| | Where are tania and taro grown? |
| | How to grow tania and taro |
| | (introduction...) |
| | Propagating |
| | Planting |
| | Looking after the plantation |
| | Harvesting |
| | Storing the tubers |
| | Tania and taro in human food |
| | Suggested question paper |
(introduction...)
As a rule, sweet potatoes are grown on ridges or mounds after deep tilling.
This way is better than growing them on the flat.
The mounds and ridges protect them from too much moisture. The ridges are made about 75 centimetres apart.
But it is still better to plant sweet potatoes on round mounds 30 to 40 centimetres high and 1 metre apart. The mounds should be made as narrow as possible.
This forces the plant to bend its roots downward quickly. In bending, the roots build up food reserves and develop tubers.
The farmer must know his varieties well. He must know how long they take to form tubers, and see to it that the harvest will be in the dry season.
It is better to plant several times, at intervals, so that the whole plantation does not become ready for harvest at the same time. By doing this, you can lift the sweet potatoes as and when you need them.
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