The Coalville times. [volume] (Coalville, Utah) 1894-1923, 1897-12-03

I'D with tuborclcs that
i%la AZ A are peculiar allies
- ii ~ e9.&g Of the legumlnous
u. Il wa plants. a full re-
y port Is given In
L ~ bulletin ST. The
summary IL as fol-
ows.
Cow peas, clovers. vctthes and other
/ plants. known a. ieumlnous plants or
legumes. when plowod under enrich
the soil by adding nitrogen, a largo
proportion OF which they have obtain.
talned freq the atmosphere.
The. enlargemenis or iuborclea on the
roots are the means By which the free
nitrogen OF the air IL made available to
leguminous plants II these tuberclca
are wanting on leguminous plant. the
nitrogen OF the air Is unavailable TO
that plant. Just a. /, Is to cotton. grass.
aud all other higher plants that are not
legumlnous.
On some soils these normal tuberclcs
do not develop on the roots OF such le-
gumcs as have never before been grown
In that locality Tho growth OF tub
circles can be induced by adding GER
tain germs TO the soil, process which
IL called inoculatlon.
In Alabama the COW pea Ia the most
generally satisfactory ronoyating plant
Tor summer growth. There Ia also need
for winter growing legumlnons plants.
such as hairy yeteh and crimson Glow
err. TO occupy the land In winter be-
tween two sale crops. In orgcr to de-
crease washing and teaching OF the
soil and TO add vegetable matter rich
In nitrogen.
Hairy vetch. without fertilizer. yield
cd on a field where this plant had been
repeatedly grown 1875 pounds OF
green forage. or ti7l pounds OF hay
/ per acre.
On n field where hairy vetoh had
never before been grown and whore
the fertilizer applied contained phoa-
phoric acid and potash. but no nitro
gen, the yield was only 1856 pounds OF
hay per acre; on an adjoining and sim
ilar plot. the seed for which were in
oculnted with earth from m old yetch
field, the yield OF hay was $50 pounds.
an Increase OF Dos per cent following
a treatment which cost nothing except
u small amount OF labor. on the In
oculated plot the plants were well sup
piled with tuberclea. while on the plot
not treated the plants were bare OF
] tuberclos.
a germ fertilizer. intended TO make
available the free nitrogen o. the air
by inducing the growth Of tuberclea on
iegumes grown In soils not already
stocked with the proper forms Of germ
/ life, was purchased In Germany and
used In Auburn In pot experiments
with hairy yetch. Canada Geld peas and
crimson clover.
incubation with this germ fertilizer
OF nitrogen greatly increased the yields
Of all OF these plants as compared
with untrehted plants.
This increase In the weight OF In
oculated plants. after thorough dry
ing. was ns follows;
Hairy yeteh. increased by SO per
cent.
Canada field peas. increased by 1873
per cent
Crimson clover young plants). in
creased by ii6 per cent.
Luplns tested on only one soiD. not
Increased.
Germ fertilizer prepared for yetch.
was effective on Canada field peas.
incubation material procured with
out cash outlay acted like nitrogen.
and greatly increased the yields OF
hairy yetch and alfalfa.
Soil from n field where n given L..
gumlnous plant has recently been sue
cessfully grown Ia an effective inocula-
ting material for the same kind OF
plant when first sown In a soil not al
ready naturally supplied with the re-
qulred form OF germ life.
The dust adherlng to the seed OF bur
clover was an effective inoculatlng
material for alfalfa: the increase In
the first cutting OF alfalfa hay follow
ing this incubation was 1896 per cent.
incubation for COW peas and lesped-
ezn was apparently unnecessary In the
soils used In these experiments. In or
near all OF these soils these two plants
have been growing for years. Hence
we may infer that these soils have been
previously lnoculated ny germ-laden
dust or by some other natural agency.
In a soil which for many years had
borne no leguminous plants, tubercles
developed without intentional inocula-
tlon on hairy yetch, Canada field peas
crimson clover and lupins. as we'll as
on COW peas and lespedeza. This soil
was more nearly Independent OF in
oculatlon than any other soil tested.
and yet even on this soil the Increase
in the weight OF inoculated plants over
plants not inoculated was 3s per cent.
with hairy veJeh 5s per cent with Can
ada field peas and 70 per cent with
crimson clover
Many soils are naturally inoculated
as regards the most commonly grown
leguminous plants and hence are not
benefited by artificial incubation.
Mors ABOUT the san Jose scale