-Saturday,1 4, 916 - -
7) 319
NEW LIGHT ON. COMPOSTING
Arid PhoipKat "May Temporarily;
Become Le Soluble Ja-Compp.t.
Rock Phosphate Hlpe4 by Cora-
posting ' r 1 -
COMPOSTING, of .stable manure
with- phosphate : and with; leaves
or other coarse litter has notJecomc
a general practice ' among farmers,
- vW lin ; irucitcrs, on
. ' thC other hand,
" and with some
farmers," if is cus
tomary.' . Agricul
tural experimenters-
and writers,
wjhile usually ad
vising cornposting
v as a means of re
' during coarse
prof.-dugoar k material- to - a nn
er mechanical condition and for the
production of early truck "crops that
require rapid early ( growth, differ
(rreatlv as to the importance- that
they attach-to the ' process of com
posting . - ','
One reason for diverse Nviews-on
this subject" is the 'widely ' different
condition of the 'material to' be!" com
posted and the difficulty,of determin
ing exactly what chemical changes
go on during" this 'process.;'. If ;i as
sumed that" a part of the nitrogen,
especially that in, the coarsest mater
ials, is rendered mbre soluble ' by the
f er mentation that ; occurs, in the com
post pile. ! . - '
Until recent years nothing definite
has been known regarding the effect
of composting on the "availability of
the small amount of phosphoric ; add
in the manure or of the acid phos
phate or rock . phosphate " added.
Hence a very careful," though; techni
cal, publication on ' thif J'siibjecti
which appeared as Research, Bulletin
No. 29 of the Wisconsin : Expiejment
Station, should be of interest to
farmers as well as to scientists. jV";
The authors, Tottingham and Hoff
man, found that on fermenting ma
nure for short and for long periods of
time in the presence of acid phos
phate, the amount of water-soluble
phosphoric acid was decreased by
the fermentation. Their explanation,
supported by, experiments, is that as
the bacteria .increased during the
earlier weeks and months of fermen
tation, they utilized in their own
structure, considerable of the origin
ally soluble : phosphoric acid. This
phosphoric acid so used remained un
available to crop plants until after
the death and decay of the . bacteria.
They also concluded, chiefly from
analyses of the various mixtures and
partly by growing barley in pots,
that it was better, so jar as concerns
the water soluble ohosohoric acid
and the growth o barley, to mix the
acid phosphate and "the manure '-'in
the soil rather than to compost them
The results 'oi cpostlng - rock
phosphate with manure are regarded
as favorable to this practice
Pared with mixing the two in the soil,
i et even in this case iv part of i th
small amount of soluble phosphoric
acid of the comoost was made una
vailable during the period when ba'c-
... . ".vo: increasing rapiaiy, ana
utilizing this constituent in their own
growth. After the mixtures ! of ma
nure with either rock of acid phos
phate remained for some months in
tne soil and presumably after a part
ot the bacteria had decayed, .the
amount of soluble . 'phosphorus in
creased, probably, because, of the re-
r , ,UI a Part of this element that
aa tirst been used in the growth of
far as these! laboratory "experi
ments, can, be applied to practice;
iney suggest that nn n'nUUr tn
"!ee(1 of Phosphates, .composting of
manure with acid phosphate is a dis
aavantapp nf t, ; -m m "
... luimcuiaici avail
bllty of , the .-iphosphoric acid,Vf;.i
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rHEN vou buv an auto- the car stormed onlv lone enouch to : v
r, . . . .. . '. rt . . tf:. 1 .-.'.,
- bile, vou exoect to use it not - take on easolihe. oil. water and a fresh
m .a -. - -
1 y ; only this year and next year, driven The jability of any car to run .
years, or1 even longer. So, while the ping the engine is conclusive proof of its
first cost is always important, it is not.;" genuine merit and quality, throughout.
nearly as important as the after.-cost.,; ..,. ; . u ' : -' .
- --;.: -1. , But this is not all. Not only did the :
. You want a; car that can be operated - -Maxwell prove its stur4iriess, its won-
-. economically. -You want a caf that will derful.endurance powers; but at cstab- , .
: give - you ,:the greatest i mileage, per -Hshed an average gasoHne4cx)nsuniption - r- V ,
-wniirm nf trncnliW anA nil. . Ymi -nmrit a " of ncarlv. 22 miles tolthe ttallon This
. car that is properly balanced and light 'ris truly;remarkablm
in weight so that you will get high'tire , that this was .primarily
J mileage. - y : v ' . StopEndurancevtest ; and that no effort ;
... . i could be made to save fuel at the risk
; This question of operating expanse is of stopping the engine,
one that some people overlook but it is. . -T; . , ' 7 u
- theoperating expense that makes a car V1 addition, the champion Maxwell
-either a good investment, a health and . tpck cuse5 only one gallon of oil to
pleasure giving investmentor a bur-' every 400 miles of its journey, and . it
densome annoyance and financial drag, went the whole distanceof 22,000 miles
-, - on two and one-half sets of tires. We.
The World's Motor Non-Stop Mile- jiave never heard of anything that
age Record, established last January by could compare, in the smallest degree,
, a Maxwell stock touring car, offers with, these figures, the accuracy " of
some interesting facts. Not claims or which is ofBcially and indisputably
beliefs or opinions, but tacts tacts established.
that are supported and vouched for by
The American Automobile Association
Every Maxwell touring car turned
the supreme-court of the. automobile out f.ouf.bl8 Detroit factories w an
industry
exact duolicate of this car. The orice
. M. " J
of $655.00 is made possible by intensive
In the first place, the record breaking ' manufacturing methods and the great
Maxwell car rah over town and country number of cars we build during the
roads for 44 consecutive days and year. If value, service and economy
nights, averaging more than 500 miles are of any importance 'to, you, do not
per day. During this time 1,056 fail to inspect arid test the Maxwell
hours-the engine never stopped .and before making your selection.
Britf Spec&cat fori Four cylinder motor.; cone clutch; unit transmission 3 (speeds) bolted .
to engine, floating rear axle; left-side steering, center control; 56" tread, 103 wheelbase;
30x3Htires;weight i;960 pounds. Equipment Elecc starter; Electric headlights (with
dimmer) arid tail-light; storage battery; electric horn; one-man mohair top with envelope
and quick-adjustable storm curtains; clear vision- double-ventilating windshield; speedo
meter; spare tire carrier; demountable rims; puiiOiack, wrenches and tools. Service 16
complete service stations, 54 district branches, oV2,500 dealers and agents so arranged
and organized that service can be secured anywhere within 12 hours. ,rfcet2-Passen-ger
Roadster, $635; 5-Passenger Touring Car, $655, F. O. B. Detroit. - Three other body styles.
nuniiuiHiaiwinM
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1
MOTOR COMPANY, DETROIT, MICHIGAN
Wri to Department No. 19 our booklet "22,000 Mile. Without Stopping.",
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If you wish a-bindAr fnii LLzJL'