OREGON WALNUTS 7 



the trees are making magnificent growth. While few walnuts 

 are grown as yet on the heavier clays, there is a possibility that 

 if the American Black nut is used, for a root, there will be a 

 possibility of producing heavy commercial crops. 



The surface soil should be friable and easily tilled, and one 

 which can be formed easily into a good heavy dust mulch for 

 retaining moisture. The sub-soils should be of such a nature 

 that roots can penetrate and get plenty of food and moisture. 

 Avoid rock, coarse gravel soils and extremely heavy clays. The 

 deeper the soil is, the better. It is a waste of money to plant 

 walnuts on soils which are only from two to four feet in depth. 

 While young trees will thrive on such soils, you cannot hope to 

 produce large, healthy, heavy producing trees under such con- 

 ditions. 



Soil drainage is a question that should be looked into very 

 carefully, as the average root used will not stand an excess of 

 moisture. The gently rolling locations are always preferable 

 to flat areas, as the former are more apt to give good soil and 

 air drainage. 



The scions have 

 sprouted well. 



Bags removed, showing 

 sprouted scions. 



