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Who among the following scholars applied the formula PI = \(\frac{Y}{Yn} l\frac{T}{Tn}\)  where PI = Agricultural productivity index; Y = Total production of selected crops in unit area; Yn = Total production of the same selected crops in the country; T = Total cropped area of the unit; Tn = Total cropped area in the country for measuring agricultural productivity level.

Who among the following scholars applied the formula PI = \(\frac{Y}{Yn} l\frac{T}{Tn}\)  where PI = Agricultural productivity index; Y = Total production of selected crops in unit area; Yn = Total production of the same selected crops in the country; T = Total cropped area of the unit; Tn = Total cropped area in the country for measuring agricultural productivity level. Correct Answer Shafi

Correct Answer: Shafi

Mistake Points 

  • Enyedi, G.Y. (1 964) while describing geographical types of agriculture in Hungary refers to a formula for determining agricultural productivity.
  • Shafi (1972 and 1974) also adopted this approach to determine the productivity indices in respect of twelve food crops in India.

Important Points

  • His formula for assessing productivity coefficient is the spatial distribution of productivity for major crops was computed, mapped, and interpreted by Enyedi's Index. 
  • While discussing geographical types of agriculture, Enyedi (1964) devised technique (8) for determining an index of productivity coefficient. Enyedi's formula of productivity index is:

Additional Information

  • Enyedi's technique is appreciable in the sense that it determines the productivity index of an area with reference to the national level.
  • However, the technique does not consider that in certain cases the productivity index is influenced by the magnitude of the area under a particular individual crop.
  • Besides, when the district yield is less than the national yield, its productivity index is higher than the national level.

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