Sweet potato ridge are constructed from the soil dug out of the furrow. Farmers make the furrow and ridge by dengora and a hoe. In some cases oxen scoop are used to move the soil and form the embankment. Sweet potato is planted by cuttings. It is often planted during the end of the main rainy season. There are different methods employed in making ridge and furrows. The furrows are meant to collect rain water and the cuttings of sweet potato planted on the ridge. The plant benefits from the soil water stored by the farrows. It has deep roots that go deep insearch of soil water. Water could also move up by capillary movement. Forming the ridges and basin is quite labours. The ridges are frequently made new and in some cases the former ridges and furrows are maintained. The technology suits to sub-humid and semi arid agro-ecological zones having sandy loam soils.
地点: 埃塞俄比亚
分析的技术场所数量:
技术传播: 均匀地分布在一个区域 (approx. 100-1,000 平方千米)
在永久保护区？:
实施日期: 50多年前（传统）
介绍类型
| 对投入进行具体说明 | 单位 | 数量 | 单位成本 (Birr) | 每项投入的总成本 (Birr) | 土地使用者承担的成本% |
| 劳动力 | |||||
| Labour | ha | 1.0 | 73.0 | 73.0 | 100.0 |
| 设备 | |||||
| Animal traction | ha | 1.0 | 35.0 | 35.0 | 100.0 |
| 植物材料 | |||||
| Seedlings | ha | 1.0 | 25.0 | 25.0 | 100.0 |
| 肥料和杀菌剂 | |||||
| Compost/manure | ha | 1.0 | 50.0 | 50.0 | 100.0 |
| 技术建立所需总成本 | 183.0 | ||||
| 技术建立总成本，美元 | 21.28 | ||||
sweet potato leaves are used for fodder
sweet potato leaves are used for fodder
SLM之前的数量: 50
SLM之后的数量: 0
