PLATE 4 Sheet 2 of 5 Sheets 



DAVIS-CAMPBELL GRASS 1959 



NOVEMBER 



Figure E 



COLEVILLE 2W PASTURE 1957 



Continuous irrigotion — •- 

 JUNE 



VARIATION OF PAN AND ATMOMETER COEFFICIENTS 



FOR 



INDIVIDUAL PERIODS OF MEASUREMENTS 



WITH RESPECT TO 



CROP GROUND COVER, AVAILABLE SOIL MOISTURE 



AND OTHER PLANT CONDITIONS 



OCTOBER 1962 



