582 



STATE BOARD OF AGRICULTURE. 



TAHLE45.— COMPARISON BE'nVEEN THR MO.VTHLY RANGE OP TEMPRR.VTURE OF THE AIR AND OF THE 



DIFFEREiNT TYPES OF SOIL. 



From table 45 it is seen that diii-iiig the winter montlis and up to 

 March the air temperature was beh>w tliat of the soil temperature of 

 all three depths, during the remainder of the year the reverse was 

 true. The greatest difference between the air and soil temperature oc- 

 curred in January and the least in December and March. For the re- 

 maining months the difference lies between these extremes. 



Table 4G shows that the greatest amplitude of the air temi)erature 

 occurred in June and was followed in order by July, September, August, 

 May, October, April, March, February, Decembar and January, while 

 in the case of the soil the highest amplitude took place also in June 

 with May, July, August, April, Seplember, October, November, Decem- 

 ber, January, March, and February came in order. It is noticed that 

 the order in both cases was not exactly the same yet almost alike. The 

 range of the air temi>erature was far greater than that of the soils 

 and is, of course, above it throughout all iho months. 



