FOOD FOR PLANTS 



151 



those on the check trees, when the latter were picked ; 

 but when left on the trees until the same degree of 

 maturity was reached, the Nitrate-treated fruit 

 showed a better color than the checks. 



7. The application of Nitrate is recommended not 

 later than the middle of July. 



Method of Applying Nitrate of Soda to Apple Trees. 



8. It is concluded that more Nitrogen and less pot- 

 ash than commonly recommended should be used on 

 the average orchard in need of fertilization. 



9. When the crop is light, smaller applications are 

 required, because of the natural tendency of the trees 

 to develop a sufficient number of fruit buds in the off 

 season. In the full years the applications should be 



