PRINCIPLES WHICH GOVERN COMPOSITION OF STAND 71 



Very often we can take advantage of a natural nurse in seeding 

 and planting. It is imperative, however, that it be not too dense, or 

 the crop trees beneath it mil go to pieces. Tolerant species can 

 withstand a denser nurse than intolerant. 



The nurse, as a rule, should be established a number of years in 

 advance of the tender species. It should be hardy, fast-growing, 

 and with open foliage, and should be removed when the crop 

 trees are no longer benefited by it. 



