The new enterprise. (Madison, Fla.) 1901-1908, 1907-10-10
rertnizIng the crop.

AASi 20 " pAOAuOg a larger gltlu VI NAl
crop that is to be Immediately grown
or is already growing, on the land t
which the fertilizer is to be applied
AS rule, 1t contains from ten to six,
teen per cent. of more or less prompt.
~ available plant food. In other
words, commercial fertilizer con-
tains in every 100 pounds weight from
ten to sixteen pounds of available
phosphoric acid, either alone, or that
amount Of phosphoric acid and pot
ash combined, or of these two and
nitrogen combined, making in the lat
ter case what is called Complete
fertilizer Now this ten to sixteen
pounds In each 100 pounds Of the fer
tilizer is supposed to be, and should
be, practically soluble and available
at once, or within a week or two, for
the use OF the crop, says Virginia.
Carolina Fertilizer Almanac.
The remaining portion Of the fer
tilizer, or elghty-four to NINETY pounds
in each 100 pounds, is mixture
Of insoluble phosphate and sulphate
Of lime, some sand, water, organic
matter and other things that are
necessarily incident to the manufac-
ture and cannot be economically re-
moved. They are of very little imme-
diate value to either the crop or the
soil.
SO when we apply high grade fer
tilizer to the soil the object is to sup
ply the plants with soluble plant food
and increase the yield of the cotton,
grain, grass or whatever the crop
may be.
Incidentally, however, this fertil-
izer does help the land, because It In
duces a larger growth of stalk, roots
and foliage Of the plants-or those
parts that will be returned to and be-
come part Of the soil A dose Of this
fertilizer, for instance, not only in
creases the size of the stalks, the fol-
iage, bulls and other parts that go
Immediately back and form a part Of
the soil in the shape Of humus Ode
cayed vegetable matters). But the
principal way to improve the soil It.
self is to add vegetable matter to It
in the form of stable manure, renova-
ting crops, rotation sof crops, etc., in
a more direct manner.
It would seem manifest, then, II we
wish to increase the yield Of corn,
cotton, wheat, oats, grass. ETC.. that
the fertilizer should contain the three
elements" of nlant food In the pro-
portions that are best suited to the
particular crop. This is particularly
true il the purpose is to use liberal
amounts Of fertilizer per acre. In
such case the deficient supply, in the
natural soil, Of any one OF more of
the three valuable" elements (phos-
phoric acid, nitrogen and potash)
need not be specially considered.
According to carefully conducted
field experiments, conducted at many
of the experiments stations, It has been
found that cotton requires fertilizer
that contains about one part each Of
nitrogen and potash and 1-3 parts !
of available pEosphoric acid. This
demand would be met by fertilizer |
containing ten per cent. available !
phosphoric acid, three per cent. Of |
nitrogen and three per cent, OF pot |
ash; or, as ordinarily expressed, a
fertilizer. One analysing |
or s-2.40-2.4O; |
or 7-~2.1O--2.lO, etc, would answer
Just as well. provided these lower
grades be applied in heavier quanti-
ties.
So II has been found that corn, SUI
garcane, sorghum, grasses and other
crops belonging to the grass family
respond best to a fertilizer that shall /
contain ten parts of phosphoric acid,
iye parts Of nitrogen and two parts
Of potash-or a 10=-5--2 fertilizer.
The following formulas are in pre-
eisely the same proportions, only
hey are of lower grade, and would
give practically the same results only
when a correspondingly larger appli-
,ation shall be made per acre-viz.,
or S-4.00-16O;
,r 7-3.5O-140. and so on. OF
course, these lower grades can be sold
It lower prices than the high grades.
,ut, as a rule. the farmer VIII ind It
more economical to buy the high
grades, both on account Of their
cheaper price per unit" and also the
Iaving Of freight, the latter being pre-
.isely the safe, pei. ton, for both high
md low grades.
Value Of Cow.
In undertaking TO place an esti-
nate on the value Of COW the exact