Blackfoot news. (Blackfoot, Idaho) 1891-1902, 1897-12-25

y bulletin 81. The
egs:
coy meas. eioyers. yetches and other
giants. known as leguminous plants or
lsgames. when piowed under enrich
he soil BY adding nitrogen. large
proportion OF which they have obtain
talned fftxi the atmosphere
The engagements or tuhereies on the
roots are the means by which the free
nitrogen OF the air Is made available 20
lsgamlnous plants. II these tuberclss
a,s santing on a ieguminous plant. the
nitrogen OF the air 10 unavailable 10
hat plant. just as II Ii 10 cotton. grass.
ard al other higher plants that are not
l<gumlnOns
On some soils these normal tnberelee
IA 90, develop on the roots OF such ie-
sanes a. have never before been gown
4 Thai locality. The growth Of tub
sseles can be induced By adding GER
,1Ia germs 10 the soil. process which
b called incubation.
II Alabama the cos pea ls the most
ssnSrally satisfactory renosasing pians
fsr summer growth. There Ia also need
fas slnteg growing legamiroas plants.
ssrh a. hairy seteh and crimson Glow
sr. TO occupy the land In winter be-
| .xeen tso sale crops. In orcsf 70 de-
esssss washing and leaching Of the
! ssli and 10 add vegetable matter rich
! Ia nlirogen-
HAIRY yeseh. without fertilizer. yield
"a % neid where this plant had been
FsssAtedly grown 1875 pounds Of
] rssn forage. or Alta pounds Of hap
i Der acre.
On = Geld where hairy ssteh had
\ rssef before been grown and where
tAs fertilizer applied contained phos-
1 sAorie acid and potash bat no nitro
ssn. the Yield Was only 25S pounds Of
hay per acre: on an adjoining and sim
lar plot. the seed for which wsre In
esalaisd sI,h earth from an old ystrh
fsld. the yield Of hay was z.ss0 pounds.
~ increase Of SOS per cent foiiowfns
treatment which cost nothing except
. snail amount Of labor. On the In
ossIaisd plot the plants we're well sup.
Piled with tubercles. while on ths plot
s9 treated The plants we're bare OF
tEhsfclea.
germ fertilizer. intended 10 make
ssailabie the free nitrogen Of the air
b inducing the growth % tubsrcies on
lssunea grown In soils not already
stocked with the proper forms Of germ
ne. vas purchased In Germany and
Hssd 10 Auburn In pot experiments
Nth hairy velch. Canada feid peas and
tlinson clover.
Incubation With this germ fertilizer
o. hl,fogcn greatly increased the yields
a al Of these plants as compared
9TH unsreated plants.
This Increase In the weight OF In
osulated plants. after thorough dry.
liz was a. follows;
Hairy veseh. increased by 50 per
ctat.
Canada field peas. increased By lbs
per cent
Crimson clover young pianis). In.
creased by TAG per cent.
Luplns Tested on only one soilD. not
Increased.
Germ fertilizer prepared for vetch
vas effective on Canada field peas.
Incubation material procured with.
gu, cash outlay acted like nitrogen
and greatly increased the yields Of
hairy yetch and alfalfa.
Soil from a field where given le.
nminous plant has recently been sue
sessfully grown IL an effective inocuia
ting material for the same kind O
Plan, when FIRST sown In a aoii not at
ready naturally supplied with the re
CURED form OF germ life.
The dust adhering TO the seed OF Du
Clover was an effective inocuiahnl
material for alfalfa: the increase u
the nrst cutting Of alfalfa hay follow
Ing this incubation was 336 per cent
incubation for Cow peas and ieaped
eaa was apparently unnecessary 10 IN
soils used in these experiments. In
near all OF these soils these two plant
nave been growing for years. Henc
we may infer that these soils have heel
previously inoculnted by germ-iadel
oust or by some other natural agency
In soil which for many years ha
borne no leguminous plants. .tubercle
developed without Intentional inocila
uon on hairy vetch, Canada field pea'
crimson clover and lupins. as well q
On COW peas and lespedeza. This so
was more nearly independent Of in
EQUATION than any other soil testet
ana yet even on this soil the inereaa
y the weight of inoculated plants owe
pants not inoculated was IS per cen
WIN hairy vetch So per cent, with Car
aaa field peas and 10 per cent wit
crimson clover.
many soils are naturally lnoculate
- regards the most commonly grow
,esuminous plants and hence are nc
'eheiited by artificial incubation.
"ore About the san Jose scale.