EFFECT OF PHOSPHATES 



MOISTURE 



Commencing in March 1920 the moisture was determined each 

 week in a 9 inches sample of soil from each plot, and a little later 

 3 inches samples were taken. At the same time temperature records 

 were obtained at a depth of 9 inches and 3 inches. All the samples were 

 taken by the writer and were secured by means of a 15 inches 

 sampler of inch diameter which could be adjusted to remove a 

 core of 3 inches, 9 inches or 12 inches in length. The sample for each 

 plot consisted of from 10-14 cores. 



TABLE XXXV. MOISTURE CONTENT OF THE SOIL AT HORNDON ON 

 PLOTS 16 AND 17 AT VARIOUS DEPTHS 



The moisture contents of the first three inches of soil and of the soil 

 from 3 inches to 9 inches on both plots are given in Table XXXV. The 

 results are plotted together with the rainfall record in Figs. 13 and 14. 



Broadly speaking the 1920 season was a moist one, and particularly 

 favourable for the hay crop. At the beginning of May the ground, 

 as the result of a wet April, was saturated with water. May, however, 

 was a dry, and on the whole a hot month, and the soil rapidly began 



