THE CORRELATIONS OF AREAS OF MATURED CROP AND THE RAINFALL. 363 



The correlations for both harvests appear to be small. 



It is true that their probable errors are large, and a value of -4 for r* would be 

 within the range of probable values for all four Tahsils, though the difference between 

 r t , for this Tahsil and for Sialkot and Zafarwa 1 may poss'bly be significant. 



In his Assessment Report Captain Dunlop-Smith says (p. 5) that in the Pa?rur 

 circle l< the soil most frequently met with is ' bharari', a hard brittle loam incapable 

 of retaining moisture, and thus requiring constant and heavy rain. . . .The rainfall is 

 not heavy, and the extent of crops failed from drought is sometimes formidable." 

 It is possible, therefore, that the explanation of the low correlation is to be sought 

 for in this statement. 



(Hi) Sialkot. One village is situated in the Charkhri circle, all the rest be'ng in 

 the Bharari. 



(a) Kharif. 



The regression equations are : — 



For crop on rain 



Ck = 53"5 ^+3291-5 

 For rain on crop 



C K = 2487 R K - i393'5 

 £ c =+i56. 



The following 



is roughly the percentage 

 Rice 



of the 



principal 



crops 

 .5 





Maize 











11 





Jowar 











33 





Cane 











2 





Cotton 











7 





Fodder 











12 





Others 











30 



(b) Rabi. 



The regression equations are: — 



For crop on rain 



Cp =30739 R P +964-6 

 For rain on crop 



Q> = 57i'33 #/>- 962-2. 



The proportions of the chief crops are : — 



Wheat 



Barley 



Gram 



Fodder 



Others 



48 

 27 



23 

 2 



10 



