268 



BULLETIN 226. 



greatly increase the yield may be destroying the trees or shortening 

 their period of Jife. The most profitable crop that could be grown in 

 many orchards is new wood, and consequent new vigor in the trees. The 

 returns may be more apparent in five or ten years than in the first 

 year or two. Occasionally there is an orchard that is growing too 



FIG. 45. One kind of "culture." This twelve-acre orchard could be renovated 

 and made a good orchard. 



fast and that would be benefited by sod, but they are not common. 

 A much larger number are dying back faster than new wood is being 

 formed. 



In Fig. 44 is shown an experiment in orchard management that was 

 carried on by T.' G. Yeomans & Sons for many years. The trees on the 

 left were tilled and fertilized. Those on the right were fertilized the same 



