Itself, does not prove that the estimates based upon pan and at- 

 mometer coefficients are more accurate. Additional supporting 

 data shall be required to confirm this possibility. 



Examination of the data in Table 9 indicates that esti- 

 mates of consumptive use can be made with equal confidence, on th( 

 basis of either pan or atmometer data. It should be emphasized 

 also that the consumptive use values must be determined for the 

 actual period of active plant grov/th. The actual grov^ing season 

 for most crops in the various areas of the State still remains to 

 be determined. Furthermore, a careful analysis of precipitation 

 pattern, frequency, and amounts must be made for both growing and 

 nongrov^ing seasons, to determine the effectiveness of this moistui 

 source toward meeting the water demand of the various crops. 



-70- 



