Atlanta tri-weekly journal. [volume] (Atlanta, Ga.) 1920-19??, 1920-03-13

past with great success. VI COURSE
L re-bed my land for sweet potatoes
and also add about 900 to 500 pounds
more fertilizer of the formula sug-
gested above.
Mixing Fertilizers for Cotton
c. Il. f., jefferson, Ga, writes: ]
lave the following fertilizer material
on bond: Three tons of acid phosphate,
5 tons of steamed bone meal, tons
nitrate of soda and one-half ton muriate
of potash. How should this be mixed
for the best results for cotton and
corn on stiff red clay land? What is
your opinion of steamed bone meal as
compared with acid phosphate? What
is cheapest-bone meal Al $50 or Is per
cent acid at $25 per ton
If you take all the material you
have on sand and mix it together
you will secure a formula containing
approximately SO per cent of nitro
gen, IL per cent Of phosphoric acid
and &c per cent of potash. This
formula would be somewhat higher
in nitrogen for cotton and corn than
we generally advise. On this account,
you might reserve part of the nj
trogen, say one and one-half tons of
it and use as a side application on
your corn when it is about knee high.
We would prefer to use about per
cent of available nitrogen under cot
ton and as the weevil has infested
your county, we would wish to put
all of the nitrogen under the drill
row at the time of planting the crop.
We are quite certain that side ap-
plicationS under WeeVil conditions are
not likely to prove beneficial in your
section of the state. This formula
would, apparently, run very high in
phoSph oric acid, but you should re-
member that all of this element will
not become available the first year.
Phosphoric acid derived from bone
meal is of fine quality, but it does
not become so quickly available as
that secured from acid phosphate.
Therefore, your application of this
element on the basis indicated would
not be excessively high as probably
not over one-half of the phosphoric
acid in the bone meal would become
available the first year. Under ex-
listing conditions, we would prefer
to buy phosphoric acid in the form Of
acid phosphate rather than in the
form Of bone meal. Our reasons for
this are as follows:
First. The phosDhoric acid in bone
meal becomes more quickly available
UH lduuS ludl dIG INV III
vegetable matter.
Second. We believe that available
plant food is furnished at a lower
cost from this source than from bone
meal at the price quoted in your let
ter ..
From four to five hundred pounds
of a formula such as has been indi-
Gated above should make very good
a M
on land such as you describe. I do
not think the amount of potash pro-
vided is excessive at all. We are in
clined to think the amount you are
using will probably pay a satisfac-
tory return on the investment this
year. There has been a tendency to
over-emphasize the use of potash on
certain soils and crops, but we can
use some of It to very good advantage
on a large part of our red and sandy
lands especially with crops such as
corn and cotton.
Varieties of Cotton Suited to
North Georgia
W. D. NJ, Commerce, Ga, writes:
We may be bothered with the boil
| weevil this year and would like to know
what variety of cotton You would advise
under these conditions? We had few
weevilg this past year.
Standard varieties Of cotton which
we think we can recommend with ad.
vantage for cultivation in the north
ern part of Georgia are as follows
College No. 1, Piedmont Cleveland
| Stcinheimer's Cleveland, Wanamak-
er's Cleveland, Sunbeam, Hooper's
Big Boil and Texas Bur. These are
all short staple upland varieties
which, according to the tests we have
made, appear to mature sufficiently
early to enable the farmer who fol-
lows proper practices to raise prof
liable crop of cotton even after the
boil weevil has infested his land. To
do this, he must of course use all the
aids which science has brought to his
help and follow modern system of
planting, cultivating and management
as compared with that which has
previously been in vogue.
These varieties of cotton are all
good standard sorts, yielding a de-
slrable quantity and character Of lint
and valuable seed as we'll in so far
as it's content Of oil and nitrogen Is
concerned.
Of the long staple upland varieties
of cotton adapted for growth in north
Georgia under boil weevil conditions,
we think the Express and Weber 40
are the two most desirable varieties
to recommend.
In selecting a variety of cotton to
be grown in the presence of the boil
weevil, it is necessary to secure a
strain without vegetative limbs
which branch low to the ground, sets
on fruit rapidly and early and con-
tinues to grow and develop through
out the season. Varieties which do
this offer the greatest promise to our
farmers. The lists sent you are rep
resentative of the best information
we have been able to obtain after in
vestigating the question of variety
for a period of more than twelve
years.