20 
The study of the pineapple shows that it is exceedingly sensitive to 
adverse physical and chemical conditions in the soil. So far as is 
known at present, there is no really satisfactory program by which 
pineapples can be grown on highly manganiferous soils. It seems 
best to use such areas for other crops less sensitive to manganese. 
The best method of handling pineapples on manganiferous soils con- 
sists in applying soluble phosphates and planting old stumps instead 
of suckers. 
[Bull. 28] 
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