Vol. 15—1961 - NorthEastern Weed Science Society

~ ••
245.
·Res~1~8 fr.o.Georgetlown (Table 3) : differ in many aspects
frOlU,Newflrk·beoause of, the:"bish;:lrass population 'present. As
at Newar~, tn.e·lO.:lbs./A •. rate of Zytron gave significantly
gre~~r ,ielg, 'b«1l'Ltme-5 :lb•.•'IA,.rate .of ,the' chemtcal. Although
Lappreclably
stuntitll w~~e"e,4 ec 'both t::ettes.ithDNBPan
(but not significantly) greater yield was found at the 6 Ibs./A.
rate. This may have been bee.u •• ~f the slightly better grass
control at the 6 lbs./A. rate •. ' .
Table 3. :Yie~dip., 'bushel .. per.c;r., of soybean.a'at two Delaware
~GCat:1pne.Av.~-se. of three replications.
"Low late
High Rate
Newark, Delaware
. c I*.BP ·38.2 35.9 (S)
Z¥tron " .,' 14.1 35.8
.CPmblaation 36.7 39.7 (S)
Ch.~k 23.-6 . 23.6
:S:1gnifiC;4mCe~. 5'.:'.
Within rat.es 11.1 Not significant
Between rates 13.5
D,NBP
Zytron
COmbination
Check
Significance, 5% .,
. '29.7 (S)
·31.4' (V)
41.3 (V)
22.8
31.2
42.4
43.4
22.8
Within," rat~s "; . '.-11.2 8.7
Betw~en..,rate.8;i
'10-.6
(S)
(V)
(V)
.(S) Stunting of soybeans at the end of the five week period
following ,plAAti • ."" _ ,'-'
('{) ;tnctea.ed~"l&9~·of.~oJbe.n, at .the end of the five' and
ten week period following planting.",·
,.., ~f!;.~~1~to.~lcPve;'~~~ont1;o10.f· both b~~r~av~~ and
grasses at ~ 10 lb~.JAi ..; -,;ete. ~}~b.e ,-eombinatldt.l.·~of~Z,.tron at
10 Ibs./A. plus DNBP at 3 Ibs./A. gave es good weed control
and a~prQx~tely. eqQ&l.y:L• .1ds. -' .