The sun. [volume] (New York [N.Y.]) 1833-1916, 1916-03-05

Dried ground blood lie an animal pro.
duct OF abattoirs and packing houses.
II is an organic aminoniate and comes
next IN degree OF availability to nitrate
Of soda and Ia the most available Of the
organic amnoniates.
Dry ish 10 a good carrier NJ am
moiia and the Atlantic Ocean is fished
tor a species Of tish for the purpose of
fertilizer only.
Ground tankase is a product Of
slaughter houses n q good source of
organic ammonia II also contains
phosphoric acid.
Cottonseed meal Is n good carrier OF
nitrogen and largely used in the
Southern States. 1t costs toe much for
use In the north.
Ground bone carries a small per-
centage Of ammonia and 10 high In
phosphoric acid.
Muriats Of potash IL IA manufactured
ooik ttOTu ptVouStS VI tuc CttStA VII
mines. In Germany. and contains IS to
80 per cent actual potash.
%Sulphate Of potash is also q manu-
featured salt from the same source IL
muriate. II contains from 81 &c IS
per cent OF actual potash. but being
! free from chlorine Is preferred on to-
hacco crops as well as for certain vege-
tables.
kainite IL mined In Germany and Is
a raw product. containing only &.
fourth as much potash ss muriate Of
potash.
Nitrate of soda resembles coarse
salt n Is u product OF the arid re-
g.on OF western South America. Tit
"~caiiche," as IL is called before Il is
refined. contains about 90 per cent
nitrate. This is boiled in water to dis.
solve the nitrate and the hot watei
/ IL run off Int tanks TO cool. where
r the nitrate forms in crystals like salt
II Is used as n fertilizer. for maxim.
! s~unpowder. refining glass. &c.
In its commercial form nitrate o
soda Is about s5 per cent. pure. con
taining about Is per cent. nitrogen
r equal 10 about 10 per cent ammonia
Two million tons are exported from
chile annually.
Nitrogen In the most important eie
rient Of plant food and in nitrate q
soda the nitrogen Ia in a form hat II
immediately available. 20 II can b'
taken UP Immediately By the growing
plants.
When nitrogen IL supplied from or
gan!c sources, such as tankaCe, blood
ris!i scrap. Sc. these materials mus
undergo a process of nitration In IN
soil before Il is available for tn
Giants. This process does not TAX
place freely until the soil has attatne'
j "a temperature OF so degrees or NOR
aud then only under favorable condi
Tons Of moisture and sunlight. TIL
process Is similar To the working O
,,ast in leaven!ng bread and canno
lke place II the soil is too cold. 20
.ry. too wet or In a sour soil.
one hundred to $50 pounds 81 nj
rate Of soda 10 the acre is an econom
cal application for practically Ii
reps. particularly garden truck. hal
,-r. cotton n small fruit. This az
"ttion Is sometimes doubled an
. iled, hut where more is used tn
piication should not he more ina
100 To $50 pounds at a time, repcatin
ne application ten days later and IN
"st application should not be MAD
too late IN the season or Il will er
Hnurage late growth and re,ard ma
+ turl;y.
care should hc used in apply!r
q Gtrate to see that Il does not com
. ,n, ,losn poDfacs vvi.h sNn piorfe
-
Peruvian yuano contains nitrogen
pHosphoric acid and potash.
An acre OF titled land. e,gl inche
deep. is. estimated 10 weigh 100000
bounds. In applying fertilizers i,
II simple matter 10 figure wat Is b,
" ,nS supplied TO tho soil and tire pre-
portions.
=, Raruyard anu restores wur
~ soils % iroiuctiveness and lasting fel
&, Il!,y better than any other fertil.ze
m II increases the supply OF humus
~ the soil. improves the texture and !r
.r creases the water absorbing waite
"a holding qualities.
,r Ordinary barnyard manure, pros
"a erly carel FOR. will average atout
-k pounds Of potash. 6 pounds % &c,
=. Phosphate and one-halfp per cert. u,tr
zen to the ton.
An acre is 1850 square feet. IT,
IN IS practically a plot eos feet by y
" feet. or a plot l0i by 4ls feet. Est
tn mates of quantities Of fertilizers +
al CURED for any given plot can |
easily figured.
a. The use Of green crops for cnricl
m ing the soil began TO come into serer
d. practice in England a, the end OF Il
re eighteenth century.
10 -
MS The first agricultural college vi
'ic the Royal Agricultural College
of Cirencester. England, 1t was orgal
as ICED In 1912 and chartered In 1916.
te The first agricultural paper vi
ut established In England In 1851. ii
- title was Collection of Letters {
the Improvement of Husbandry al
Trade" II WaY in this Uul,licuii