Year-to-Year Variation in Yield: The Effect of Rainfall and Its Distribution

  • Christian J. M. G. Pieri
Part of the Springer Series in Physical Environment book series (SSPENV, volume 10)

Abstract

Because yields vary so much from year to year due to vagaries of the rainfall, it is difficult to identify the underlying yield trend. To overcome this problem to some extent, both yields and rainfall data are presented throughout as moving averages over 3 or 5 years, the assumption being that there will be a close connection between crop yield and rainfall pattern. This is very likely and work over recent years confirms that it is so. Water supply to the crop is of prime importance in determining yield for crops like maize, sorghum, upland rice, sugar cane, groundnut and, to some degree, cotton.

Keywords

Sugar Maize Lime Manure Sine 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • Christian J. M. G. Pieri
    • 1
  1. 1.CIRADMontpellier Cedex 1France

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