PLATE VI. 





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Fig. 1. High licadetl Satsiiina trees are uiiciesiiable. They are 

 not strong or symmetrical and cannot safely carry heavy 

 crops. They are not likely to develop cross grafts. 



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III! 



Fig. 2. This photograph shows an orange grove that was cul- 

 tivated one way with a tractor in December and is be- 

 ing cultivated the other way in January. The first 

 row of trees to the right of the tractor shows the thor- 

 oughness of the work. This is an efTicient and eco- 

 nomical method of cultivation for the orange groves. 

 The tractor may be used to follow the late fall and win- 

 ter plowing where a heavy growth of velvet beans has 

 been turneil under, or where peanuts (as in the picture) 

 or a moderate growth of cowpeas are to be turned under. 

 It may precede or take the place of the plow. 



