BLUEBERRY CULTURE 9 



Cultivation after each application is beneficial. 



The health}' growth of the bushes may not continue if the soil is not distinctly 

 acid. It is better not to use soils with a pH above 5.5. Where they are in use, 

 the acidity must be increased if possible. A fertilizer leaving an acid residue in 

 the soil will help. Sulfate of ammonia is such a fertilizer. It ma\- be applied 



Figure 4. Pioneer. A. Before Pruning; B. After Pruning. 

 Note bushy, spreading growth which requires more detailed and costly pruning than Rubel. 



