Atlanta semi-weekly journal. (Atlanta, Ga.) 1898-1920, 1916-02-25

dClO pIlOSpidte III dbSOcldllOH WITH
nure. We can see no special benefit 10
be derived, however, from Incorporating
from 200 TO 800 pounds with ton OF
manure and this would involve a good
deal Of labor and expense as you can
readily see.
Raw ground phosphate rock is consid-
cred better to mix with compost and
manure than acid phosphate. More
over, when mixed with manure the
crushed rock will not injure the feet Of
animals trampling thereon as might be
the case with acid phosphate.
PREPARING a FORMULA FOR COT
TON.
.. r. L., Douglas Ca. writes: What
would nhe the analysis of 200 pounds 16
per cent acid 200 pounds cotton seed meal
and 80 pounds nitrate Of soda? What would
you advise using on cotton in this section Of
Georgia?
Two hundred pounds of 10 per cent
acid phosphate would contain 81 pounds
Of available phosphoric acid; 200 pounds
Of cotton seed meal would contain 1885
pounds OF nitrogen if analysing els
per cent of nitrogen or 10 per cent OF
amonia; and 80 pounds of nitrate OF
soda, If Of high-grade, would contain
rs pounds OF nitrogen. Therefore $50
pounds of this mixture would contain
2016 pounds Of available nitrogen and
80 pounds OF available phosphoric acid.
The percentage composition would be
practically per cent Of phosphoric acid
and AS per cent of nitrogen. we
would consider this a very good formula
to use on soils in your section Of the
state on such standard crops as corn
and cotton. 1t is about as good fer
tilizer mixture as you can use under
existing circumstances. OF course, II
you can secure nitrogen from other
sources at lower rate than the ma
terials indicated above, there would be
no objection to using them. Probably
phosphoric acid can not be secured in
a cheaper form than in acid phosphate.
COMPOSITION OF HARDWOOD
ASHES.
H. B. w. Claxton, Ca, writes: What
is the composition OF pure oak ashes! am
expecting to use large quantity OF ashes
with cottonseed meal and acid phosphate;
What proportion Of each Ingredient should
be used2
Wood ashes vary much in composition,
depending largely on the character or
wood from which they are produced
When of good quality they contain 70
per cent potassium, equal 10 10 I
per cent Of potash; to per cent OF
phosphorus, equal to ] to per cent OF
phosphoric acid. They contain from 20
to 50 per cent OF lime. IN lreshIy
burned ashes calcium oxide or quick
lime is the chief calcium content 1t
would not be good practice, therefore
10 mix wood ashes with acid phosphate
II would probably cause the phosphorlc
acid 70 avert to a less available form
than that in which it normally occurs.
You will see from these figures that
hardwood ashes will contain possibly
100 pounds OF potash per tom little
nhosnhoric acid and a considerable
quantity Of lime. In using WOOD sshes
we advise that they be scattered owe,
the soil or mixed we'll with the suo-soll
some time in advance OF using the Ter
trizer. Three hundred to 500 pounds
can be used to advantase, %,
uated az you are we wou4u M NJ
ono mounds Of meal, LOO pounds
NJ acid phosphate and use zoo
~ zoo pounds Of this mixture me
ashes of course could be applied along
with this mixture. We think this wouIo
nrohablv be the most satisfactory ar
rangenoent for fetilizing your lana
r.bich YOU can expect the present sea-
son.
r,E,2TIIJZINC OLD FIELD LAND.
~ Macon. Ca writes: have ten
..Sas ~ light thin sandy land whlcn mas
80 hean IN cultivate ton for several years
ed "a covered with sedge brush. want
rlsnt n 70 corn and peas and follow
with oats What fertilizer rormuia "0"iu
you advise:
Situated as you are we Wod4u plo"
tba land in question as soon as plac-
ticshle. turning under the weeds ana
tyash 10 a good depth and then cross
~, with 2. disc and harrow until gooo
firm, seed bed is obtained. II woulu De
an ADVANTAGE If heavy rain or two zen
or this ground before you plant IT.
1yhen ready to plant the corn mix To-
Setner 900 pounds OF cotton seed meal
! roo pounds Of acid phosphate. Use
this formula at the rate OF 500 POUNDS
nar acre put the fertilizer under the
Sr;l, row at the time of seeding the
corn. ,., ,..,
II you can find formula wnlcn you
can rr.pare as cheap as this and whlcn
will show the same percentage OF plant
.ood Il will be all right to use II. IN
ofher words. we are not welded TO TINS
T.articular combination, but consider II
An excellent thing to use at this time IN
view Of the disorganization OF the rer-
tilizer market on account OF the Euro
pean war