Various vegetables are cultivated in rural Tanzania. Since economic liberalization started in the 1980s, cultivation of fruit vegetables as cash crops has increased due to the development of cash economy in rural Tanzania. However, self-sufficiency in leafy vegetable cultivation has also continued. The objective of the present study was to elucidate the features of leafy vegetable cultivation by analysing their consumption and by observing farming practices in rural Tanzania. The results showed that leafy vegetables were important for use in side-dishes and that, in this area, nearly 30% of all the side-dishes included leafy vegetables. Leafy vegetable consumption increases in the rainy season and decreases in the dry season. Pumpkin leaves accounted for the largest proportion of leafy vegetable consumption, followed by cassava leaves, while wild herbs (e.g.
Aeschynomene sp. and
Corchorus sp.), leaves of amaranth, sweet potato, and cowpea were also used for side-dishes in the study area. Leafy vegetable cultivation plays an important role in providing foodstuffs for farmers by reducing the effects of socioeconomic changes, because the components of this type of vegetable cultivation can be grown easily and are not related to cash economy. Although leaves have been considered to be by-products of tuberous roots, fruits, and beans, it is necessary that such crops be considered as leafy vegetables because leaf production is as important as that of tuberous roots, fruits and beans.
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