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This can be seen more clearly if one estimates simple linear equations with the overall labour requirement for rabi foodgrains (MDFR) as the dependent variable, and percentage area under irrigation (PCIRRI) and percentage area under rabi HYVs (HYVPCR) as the independent variables.
MDFR = 118.62+4.2249 HYVPCR ([R.sup.2] =0.8231, t =8.07) ...
MDFR = -108.58+40.6821 PCIRRI ([R.sup.2] =0.9576, t = 17.78) ...
Let us consider this by examining the impact of the percentage area irrigated with modern methods (PCMODIR) on the total labour demand for rabi season foodgrains (MDFR).
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- MDF bearing indicator