Weather, with great uncertainties, is the key factor in crop production. The efforts to lessen dependence on the vagaries
of nature have so far had only partial success. The ability to do work in spite of worst uncertainties holds the key to stabilize production. Fitted growth curves allow us to reject the hypothesis regarding instability of semi logarithmic curve due to the existence of an upper and lower asymptotic boundary of the growth of crop production and the law of continuously declining and/or increasing annual growth rates. Acceleration in the growth of crop production following the Green Revolution has been tapering off. Although the crop weather relationship appears so simple to visualize, the empirical estimation, after taking into account the various plants and weather characteristics, is a real tough job. Nevertheless, within the data constraints, the study has brought out the role of weather factor in determining the area and the resultant yield of the crops and also indicates the need for continuing research and the importance of data collection under homogeneous conditions. Rainfall has come out to be most
important factor affecting area and its resultant yield. This implies that the available
irrigation is not sufficient enough to overcome the deficiency of rainfall and that available irrigation only supplement rainfall and is not a substitute. The general belief that technological innovations such as assured irrigation can ensure the freedom from the clutches of the vagaries of weather is a myth. The study further reveals that the farmers are responsive to changes in their relative input and output prices which are consequent an important instrument for policies geared to influences yield and hence output. The varietals improvements in the crops having comparative advantages and their adoption by the farmers will be important for maintaining production at the desired level. The pace and risk factors have to be taken care of by appropriate measures to provide necessary incentives to the producers. These policies must indeed go hand I hand wit the policies elating to production technology.