The Lakeland evening telegram. (Lakeland, Fla.) 1911-1922, 1915-04-30
YIELD Of JAPANESE
Cane WITH DIFFERENT
FERTILIZERS
By John M. Scott.
press Bulletin 234, University
of Florida Agricultural Ex-
pertinent Station)

The fertilizer experiments
with japanese cane were begun
in the spring of 1909. Observa-
tion and notes have been kept
on the experiment each year
since. Hence we have the re-
suits from six crops from which
to draw conclusions. Eight plots
of Japanese cane were used in
this work. On an average for
six years the yields from the
various plots varied from z:s5
tons to 1877 tons of green mater
ial per acre.
Incomplete fertilizers were
used on plots 1, and 3. Plot 1
was given an application of liz
pounds of muriate Of potash per
acre each year. On an average
of six years this plot gave yield
of 1895 tons of green material
per acre. Plot was fertilized
with 81 pounds of muriate of
potash and 224 pounds of acid
phosphate per acre each year. On
an average of six years plot 2
gave yield of 0.6s tons of green
material per acre. Plot 3 was
given an application of ia
pounds of dried blood and ga
pounds of acid phosphate per
acre. On an average of six
years plot 3 produced a yield of
only 7.55 tons of green material
per acre.
These results would indicate
that potash and ammonia are the
important fertilizing elements
needed in producing a satisfac-
tory yield of corn. One impor-
tant point to consider is that
plot 2 which received no anon
MIA gave better yield than did
plot 3, which received dried
blood and acid phosphate.
Plots 4 and 6 were given COM
plete fertilizers as follows: Sui
plate of amonia. 72 pounds; pot
ash, "a pounds, and acid phos-
plate, ga pounds, per acre. The
only difference in these two
plots was that muriate of pot
ash was applied to plot 4 and
sulphate of potash was applied
to plot 6. For an average of six
years plot 4 produced 1887 tons
and plot 6 produced 1854 tons
per acre of green material. This
shows a difference of only 81 of /
a ton in favor OF sulphate of pot
ash.
Plot 5 received dried blood, |
lie pounds: muriate of potash,
81 pounds, and acid phosphate, |
ga pounds. per acre. Plot II
was given the same fertilizer ex-
cept that sulphate of potash was I
applied instead of muriate. On
an average of six years plot S
gave a yield of 1901 tons Of
green material per acre and plot
gave yield of 400 tons of
green material per acre. This
gives a difference of I.o8 tons of
green material per acre in favor
IF sulphate of potash.
From the results obtained !
rom this work on the soil on
which this cane was grown (pine
and) potash is most beneficial.
L seems to make but little diff
erence as to which form of pot
lsh is applied. The important
,oint is that to produce the best ,
vield the crop must have potash.
Next in importance to potash is ,
1t seems to make no
which source of anon 6
a is applied. Phosphate seems ,
o be of less Importance than
potash and amonia in fertilizer /,
or Japanese cane. Ground lime /
tone acted as a temporary slim
liant only. No results were OBJ {
aimed from limestone after the
pplication. II
Plot 8 was fertilized the same :
S plot 2. In addition an appli- /
ion of 1000 pounds of ground n
per acre was made in o
900, 1911 and 1913. On an av-
rage of six years plot s show &
d weld of 1877 tons of green r
material Der acre. This shows {
difference of r.7r tons of green s
material in favor of the use of !,
round limestone. 4
Cfa<s oaos~e olAe. >ao,r