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The paper discussed the nutritive values and phytochemical contents of Telfaria occidentalis and Talinum triangulare vegetables grown with inorganic and organic fertilizers. The effects of the two application rates (4.0 and 8.0g/kg soil) of the fertilizers where examined. The proximate compositions and the phytochemical contents of the vegetables were determined at 12 weeks after planting. The result showed that the nutrient contents of the vegetables varied considerately and the two vegetables recorded highest energy yield in soils treated with pig manure at 4 .0 and 8.0g/kg soil fertilizer application rates. Telfaria occidentalis showed step-wise increase in protein contents across the fertilizer application rates of the various fertilizers and decreased in fats and carbohydrate contents. Contrariwise, Talinum triangulare showed similar increase in fats and carbohydrate contents and decrease in protein contents across the fertilizer application rates of the various fertilizers. The result of the phytochemical analysis showed no specific variations across the fertilizer application rates of the various fertilizers. Thus this suggests that fertilizer applications may not have strong influence on the phytochemicals concentrations of vegetables. Saponins, flavonoids, phenols and alkaloids were identified in the sample extract of Telfaria occidentalis, while Tannins were below detection limits of our method. Saponins, flavonoids, phenols, alkaloids and tannins were identified in the sample extract of Talinum triangulare. These results advocate the use of organic fertilizers and that the indigenous leaf vegetables require the urgent application of biotechnology so that the nutritional and phytochemical potentials can be fully exploited.

Nutritive values and phytochemical contents of some leafy vegetables grown with different fertilizers