208 



SOIL PHYSICS AND MANAGEMENT 



By comparing columns 1 and 2, 3 and 4, 5 and (>, 7 and 8, 9 and 

 10, and then all with 11 in the table, the effect of organic matter 

 may be seen. 



In the coarse-grained soils the organic matter which consisted 

 of finely ground well-decomposed peat gives a greater range of 







s ,,, 







I 



Flo. 93. Showing the effect of various amounts of organic matter on the rise of capillary 

 water from a free-water surface for a 14-day period. 



