Micronutrients for Production and Biofortification of Cassava

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Abstract
Micronutrients are strategic elements for increasing the production of crops and improving the quality of harvested products. Despite this, they have been neglected in cassava (Manihot esculenta Crantz), one of the most important root vegetables in the tropics. This chapter aims to show how micronutrients can increase yield and improve nutritional quality of cassava. Research results covering the influence of micronutrients on yield and biofortification of roots of the plant are reviewed in detail. Boron, Cu, Mn, or Zn fertilization can increase root yield. Genetic biofortification is efficient in increasing Fe and Zn concentrations in cassava roots. The increase in Zn concentration can also be achieved by agronomic biofortification. A combination of genetic and agronomic strategies to biofortify cassava needs to be studied. In addition, further studies are needed to establish criteria for the large-scale application of micronutrient fertilizers in cassava. Use of genetically biofortified cultivars and judicious application of micronutrients are essential to increase production and improve the nutritional quality of cassava and thus ensure food security in the tropics.

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