Common species of vegetables cultivated on the plots were tomato, spinach, potato, sweet potato and chillies.
An analysis of the protein content of seventeen sweet potato samples of thirteen different varieties gave a mean figure of 0-85 % of fresh weight.
In this paper we have classified eight basic staples as food crops : maize, sorghum, millet, cassava, rice, groundnuts, all beans and sweet potato.
In many parts of the country, water is an important factor limiting the productivity of sweet potato.
This was also true for the upper epidermis of tannia and sweet potato where stomata were present.
In general review articles, the sweet potato is invariably described as drought tolerant, but sensitive to water-logging.
The principal feedstuffs used for sheep fattening are farmproduced sweet potato and maize.
Relatively little is known about the water requirements, and yield responses to water, of the sweet potato.
