Nutrient Composition of Selected Sweet Potato [Ipomea batatas (L) Lam] Varieties as Influenced by Different Levels of Nitrogen Fertilizer Application

  • A.N. Ukom, P.C. Ojimelukwe, D.A. Okpara
  • Pakistan Journal of Nutrition, November 2009, Science Alert
  • DOI: 10.3923/pjn.2009.1791.1795

Use of nitrogen fertilizer increases nutrient content of three varieties of sweet potatoes

What is it about?

Four varieties of sweet potatoes were planted with four levels of nitrogen fertilizers. Their contents of beta carotene, proteins and other nutrients were evaluated. Three varities increased in protein and carotenoid content as a result of the application of nitrogen fertilizer. One variety did not.

Why is it important?

Nitrogen fertilizer increases the carotenoid and protein contents of sweet potatoes


Professor Philippa C OJIMELUKWE
Michael Okpara University of Agriculture Umudike, Abia state, Nigeria

Application of nitrogen fertilizer improves beta carotene and protein contents of sweet potatoes

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The following have contributed to this page: Professor Philippa C OJIMELUKWE