The Manchester journal. [volume] (Manchester, Vt.) 1861-current, 1897-05-20
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Nnvr.t,tsa Frn1ttrr

A hallssss iram tie 0aia st.i,an GO The
Eaiu.snsnes a lsrursy reports Geld 81
psflrneau ettpu1tas oyn eiRht SESSIONS nn
separate ttsrts 81 isaa ia dli locsit
lea. This tepurt aakes u sppest that The
highest eiriescy 81 i.ttlhEst Tor etrrsi
crops o. pot,,oes l. o4ly stlstoed vhsn il
oobtsias I'll three 81 the ettst constituents
u fertility -ulgtosen .s sell a. phesptof
10 aeii .gd potash Ia The absebee Of
clover o, other lssumiaoas crepe The m.Ii
uam nersass has beeu produced when
the qnsntlty al uitrngeu spilled ss
equal 10 III steater than that II phosphorie
seid. The wufk hs pot yet eo0s Tar
enough 10 give debate iuioimaiioa con
eettias The feet Of clover 81 ohu leRa
mItou, crops 10 the rotation, but at the
preset stage Of Tie work il seems doubt
tal whether clover can be relied upon to
furnish suf,icieut nittoseu for marinnm
crops sro~u 10 totsttous Of I've years or
more.
II sppesrs thai cora add possibly pots
toes have far gfester capacity for Obtain
ing plaut food thsn wheat or cats. the
statistics OF crop production showing that
80 average crop OF corn may obtaiL nearl,
twice as large total quantity Of nitrogen.
pho,phofie acid and potash as 40 average
crop OF whest or oats grown under the
same conditions OF soil and climate,
Where the cereal crops have been grown
10 continuous culture for seven or eight
years 10 succession the total recovery OF
plant food applied in oh mlcsl fertilizers
by the crops to which they were applied
Que al BIT the pbosphoric acid aud potash
Where they have been grown 10 rotation
with clover 80 per cent more vi 'rogsn was
recovered 10 the increase than was applied
10 the fertilizer. but ouly one SIXTH ~
much pbosphoric acid aud bali IS much
potash.
The immediate increase from barn yard
manure hiss been muoh smaller in proper
ton TO its chemical constituents than from
the chemical fertilizers used 10 these tests.
bat the resi- iusl effect OF manure is shown
TO be much erester than that from ohemi
Gals
Nitrate OF soda has been,the most etiso
tive carrier OF nitrogen in these expert
ments. with sulphste OF ammonia. dried
dried blood aud inseed oil meal but little
inferior, OF the various carriers OF phos
phorc acid dissolved boneblaok, acid
phosphate and basic Stag seem 10 produce
practically equal Results, pound for
pound OF phosphoric acid contained.
II is shown that persons may save from
80 to 80 per cent OF tae sost OF their iertl
izsrs by purchasing the materials and mir
ing them when mixing is necessary at
home.
A so called natural plant food is shown
to be crude rock phosphate.
With fertilizers rated at the prices
which Ohio farmers have been paying
them aud with the increase valued at the
average market prices Of recent years, the
cost OF the fertilizer has never been recov
cred 10 the direct 10 crease when used on
cereal crops, except 10 few instances
which have not been repeated 10 subsa
quent crops, When the cereals have been
grown in rotation with clover, there has
been large increasa. from one third TO
one half the total recovery Of plant food
being found IN the hay crops and when
fertilizers have Eepn used on potatoes
there has been go "a profit, with ordin
AIRY yields I'D average prices OF potatoes