Atlanta semi-weekly journal. (Atlanta, Ga.) 1898-1920, 1911-06-06

literally, and apparently prepared your
land with skill and judgment and with
at all favorable seasonal conditions
should raise an extraordinarily large
Weld. There is possibly only one critic
cism which can be offered and that is
that the potash supply may be somewhat
low unless your soil is of heavy red
clay type The 600 pounds of the S-4-4
fertilizer which you contemplate using as
second application should be put on
the corn when it is II to- Is inches high.
Putting It on later than this will prob
ably not give the crop sufficient time to
as fully utilize this large supply OF plant
food as is desirable, and in our Judgment
it would be better TO broadcast so much
fertilizer and cover it well into the soil
rather than put it in the middle of the
drill row or alongside the plants for that
matter 1t should not be covered over
three inches as the feeding roots or the
crop approach rather close 10 the surface
on land which has been kept we'll Guilt
waited and contains fair amount of
moisture on that account. The use of 400
pounds of nitrate of soda on crop of
corn will depend altogether, on seasonal
conditions and the appearance OF the
crop at the best time to apply the MI
trate which is shortly after the tassels
have appealed and the plant is getting
ready to silk ana produce pollen Inc
400 ounds of nitrate of soda would seem
to be a larger amount than most crops
of corn could use to advantage and to
apply this much at two applications, even
two weeks apart, might tend to over
stimulate the growth of stalk and lear
at the expense of yield. 1t occurs to us
that an application of 200 pounds with
the interval suggested would be more
likely to prove satisfactory. OF course,
the need of a heavy application of nitrate
of soda will be determined. to consider
able extent by the thickness of the corn
on the ground. In experiments made on
the college farm the best results have
been secured from leaving 1900 stalks per
acre. When this was done on land that
was we'll fortified and managed, yield
of nearly 100 bushels was secured. The
stalks could probably have been left
thicker where heavier applications of
fertilizer were made, and may say that
you are using the equivalent of nearly
three times as much plant food as we
used In our judgment 5000 stalks would
be the limit which should, ordinarily be
left on Georgia lands even where high
fertilizatio mis- resorted to- because if
there are too many stalks the chances
are that If a period of drought over
took the crop it would fail to develop and
mature a sufficient number of good-sized
ears to produce good yield. The fact
of the matter is that two or more good
ears per stalk WI often result in
larger yield being secured than larger
ear from a small number of stalks. and
this is likely to be the result where too
many stalks are left on the ground.
PLANT FOOD EQUIVALENT OF COT
TON SEED.
j. NJ L., Graymont, Ca, writes: How
much 10-4-4 fertilizer will have to use
to equal 16 bushels of green cotton seed?
A ton of cotton seed contains approxi-
mately 5SS pounds of nitrogen, 21 pounds
of phosphorus and 21.S pounds of potash
Sixteen bushels or 512 pounds of seed
would contain approximately 14.7 pounds
of nitrogen, 81 pounds of phosphorus
and 54 pounds of potash. 1T would re-
ouire. therefore, about $50 pounds of a
l10-4-4 fertilizer to supply the netrogen,
so pounds to supply the phosphorus and
125 pounds to supply the potash. You
will see from this that cotton seed is not
a wen-balanced plant food, according to
the apparent needs of our soils. AS a
matter of fact, on ordinary sandy lands
YOU should use on cotton not less than
800 pounds of a 10-4-6, and ON red clay
lands an $50 On corn larger amounts
of these two formulas should be used on
the soils indicated.
DESTROYING IRISH POTATO BUGS:
]. r. l., Milledgeville, Ga, writes: WIN
YOU kindly inform me the most effective
means you have found to combat the po-
tato bug?
The best and most certain remedy for
the destruction of the Irish potato bug
is to apply Paris green in the proportion
of one pound to two pounds OF quick
limo and 15O gallons of warter. Arsenate
of lead may also be used at the rate
of two pounds of lead, two pounds OF
quick lime and so gallons of water. Paris
green may also be used as dust spray
by mixing ten to fifteen pounds OF lime
with one pound of Paris green and dust
inc on the plants when they are wet
with dew. Any of these methods If per-
sistently followed UP will result In the
destruction of the pest.