The Lubbock avalanche. (Lubbock, Tex.) 1909-1922, 1922-06-13

period for termination aud when
they DO frfOut h T. ~ very irroR.
ulnr intervals IN one ciss after
pas ing 100 days in The germinnt0f
ono 0f the seeds responded
The termination was uniformly
low IN nll cases. IN the case u four
samples the light seed was blown
out and only the heavy seed tested
These four samples show much
higher per cent Of termination than
the others, which Of course, raises
the average. Considering the whole
number Of samples tested there
was nm average termination Of only
one per cent and when the selected
samples Of heavy seeds are omitted
the per cent, was considerably less
than this amount. Considering the
low INABILITY shown by these tests
under ideal artificial conditions, u
would seem that very few natural
seedlings are produced, which fact
b. further borne out by The nppaf-
emf lack Of such seedlings IN in
Tested areas where abundant seed
b. produced Seed which were col
iccfcd and planted in the open
ground and irrigated 10 give maxi
mum conditions for growth gave
mo- seedlings
An examination II the seed shows
them generally 20 be- lieht and ~
doubtful appearance ~ f0 Termlnn-
hllity, frequently many nf them
being empty and some having been
eaten oui hy am insect When the
seed b. fully developed but rill
lightly green and yet retained in
the head they have o plump ap-
pcafance. II is probable that de-
tcfi0ration ~ the seed TAX "a place
quite rapidly, on that there r. an
egR ~ temperature factor fcon-
rrrnod ~ some other requirement
which n properly fulfilled would
induce none perfect germination
Experiment, in Eradication and
Control
With the view ~ gaining more
knowledge ~ the habits ~ the blue.
weed and determining some praciie.
f ard efficient method of ifa era
i|chti0n and control experiments
were conducted in the season Of
1917 FEB 1919 "a Satisfaction so. g.
fhf station is located ~ Ipbh0ck
r ne South Plains region. The
soils 0f this section belong f0r tie
most part 10 ono ~ two clamifica-
i.0ns, be reddish soils NJ the ANA
ullo series, and the brown or dark
brown soils n fhe Rirhfcld series.
The blucweed grows on either ~
these soils a. well ~ on the Ram
dali clay which occupies the NUM-
orous lake basins scattered through.
out the Plains
The station farm itself does not
contain an area thickly infested
With fhe hlucwecd, and 81 mfficiont
zo 40 conduct tests ~ this Kind.
ln order t0 obtain suitable and
rorroFnniafire area n piece Of land
WaH selected some f0uf miles from
fhn station The soi 81 This area
uaF Amarillo clay l0am Scarcity
of labor at this time and the dist
aure from the base OF opofafiuu
made it fomcWha, difficult to c0n-
fult the work iu an altogether sat
lactory manner, bot information
70 practical value was obtained re-
iating t0 the eradication and con-
troll ~ this pest and The merits ~
various CULTURAL operations Tor this
purpose established
A location was selected which
had a thick and uniform stand ~
blueWecds and was divided into
one-tweuiicth acre plats 20 receive
treatment a. follows,
Plat ! Cut weeds with weedcr-
blade attached 20 culiivator
Plat 2 Flowing and rcplowing
seven inches deep
Plat 3 Flowing and roplowing
four inches deep
Plat 4 Listing and rclsting sew
ninches deep.
Plat 3. Listing and rel.ding four
inches deep.
Plat g. Listing and lister plant
ing cotton IN 3-foot rows
Plat Z Listing and lister plant
ing cotton NJ 6-fOot rows.
Plat 3 Listing and religing 20
keep down weed growth until June
IS. when milo was lister planted.
The first five Of the above plats
we're thus followed. growing no
crop, but receiving treatments a.
specified without any other inter-
vening tillage.
Six smaller plsts, one square rod
IN size, we're laid or a. check plats.
One was hand-hoed, one was smoih.
cred, one was treated with salt. and
the Others we're treated with other
chemicals.
This project was started IN the
fall Of 1917, but the fall and win
ter were no dry that cultural opera
tons on the plats could not be
done before the following spring
The whole field, including the plat
ted area, was thoroughly disked In
the winter Of l9l7-l7 and listed
early in April. 1918, and these OPP
eratiOns should be counted against
the treatment Of the 9lais this
season. The season n 1915 proved
10 be an extremely dry year, which
was Of assistance IN subduing the
weed, but made cultural operations
difficult. For this reason also
stands Of the crops planted were
difficult 10 obtain on plats 8, z, =,
and because Of the further fact
that they were too distant 10 be
give timely CIVILIZATIONS they were
dropped from the test.
Treatments were given on all