Florida Agricultural Experiment Station


phorus and potash) was inferior to the growth where nitrogen
was supplied also. The growth responses of Dallis, Pangola4
and improved Bermuda 5 grasses were similar to those of com-
mon Bermuda grass.


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0.15


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B

 0.05


'ortemoutb fine
de a Conty
Oceola County


Leon fine .and
Oaceola County


Plummer fine eand
Bardee County


ImlokaleC fine
HB lllande County


Acid peaty muck
Polk County


 FIG. 11.-BOOSTING PHOSPHORUS CONTENT.
The phosphorus content of carpet grass grown on several virgin soils as
 influenced by the application of phosphates to the soil.

 The lime and fertilizer needs for grasses on a Leon soil at
Zephyrhills were similar to those on the Callahan area, except
that lime and potash gave pronounced growth increases with
most of the grasses. Bermuda and Pangola failed when lime
was omitted, and the growth of Bahia grasses was improved
appreciably when lime was applied.
 The fact that the soil is often very low in phosphorus, calcium
and other nutrients is demonstrated by the greatly increased
mineral content of grasses grown on treated soil. The mean
phosphorus and calcium content of carpet grass taken from 3
fertilized and unfertilized sandy soils of the pine and prairie

 See Page 60.
 5 See Page 55.