MULCHING IN BEARING APPLE ORCHARDS 9 



period, the difference would have been less and might have been reduced to 

 that due to natural soil conditions. 



Table 4 shows that the size of the crown varies much as trunk diameter and 

 shoot growth; and with the exception of spread of Wealthy, all the measure- 

 ments show the mulched trees to be larger. This is especially true of volume 

 (8). While the method of calculation does not show exactly the tree volume 

 nor the bearing area, it should show the differences between the two lots of 

 trees. The volume of the cultivated Mcintosh is 72 percent and of the culti- 

 vated Wealthy 84 percent of the volume of the mulched trees. 



Table 4. — Size of Crown, 1935. 

 Mcintosh 



Mulch 



Height, feet 24.9 



Spread, feet 38.2 



Volume, cubic feet* 9298 



Culti- 

 vation 

 22.4 

 34.3 

 6680 



Wealthy, Standard 



*v = 



Ci) H - 



V= volume, H = height, S = spread. 



