C onset ving Soil Moisture. 



JU7 



The subsoiled ground had therefore not only retained 

 all the water added but it had gained by capillarity 14.24 

 Ibs. more. It is noteworthy too that the fifth foot in both 

 places had lost water upward by capillarity, 2.29 Ibs. in 

 the former and 19.5 Ibs. in the latter case. 



The effect of subsoiling on the capillary rise of water 

 from below was demonstrated by using the same piece of 

 apparatus in the same way except that the two areas were 

 covered to prevent evaporation, without adding any water, 

 the experiment extending from June 26 until July 2, giv- 

 ing the results shown in the next table. 



Table showing the effect of subsoiling on the capillary rise of 

 water from the deeper soil wfyen no evaporation can take 

 place from the surface. 



It will be seen that in the subsoiled area there had been 

 but little change in the water condition while the ground 

 not subsoiled had gained a very material amount of water 

 in the surface three feet at the expense of that deeper in 

 the ground, the gain in the upper three feet amounting, 

 on the 36 square feet, to 129.69 Ibs., 53.52 Ibs. having 

 come from the fourth and fifth feet and the balance prob- 

 ably partly from the sides and partly from the sixth foot. 



When the ground was" subsoiled in the same manner as 

 13 



