**Author details**

Tandzi Ngoune Liliane1,2\* and Mutengwa Shelton Charles1

1 Department of Agronomy, Faculty of Science and Agriculture, University of Fort Hare, Alice, South Africa

2 Institute of Agricultural Research for Development (IRAD), Yaounde, Cameroon

\*Address all correspondence to: tnliliane@yahoo.fr

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**21**

*Factors Affecting Yield of Crops*

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