The Hawaiian gazette., 1916-12-08
ASSOC ANON I5Eh X ENDO RISES WORK
ss DONE BySL0 CA q Elk ENTAIL STATION

~ we we're recently called upon to In
1 vestigate a peculiar malady which sud.
denly appeared in a small patch OF
HOP on Hawaii Doctor Lyon be.
lieyeb the trouble to be caused by h
parasitie fungus which attacks the leaf
bases, causing the leaves to turn vel.
low and die prematurely." 'h. 5.
4 H. l.. Lyon, pathologist, described the
effect OF top-rot on cane, explaining
how y attpcka the tender leaves frat.
He stated that aH@333 cane variety
could not be grown extensively on &C.
count OF the fart that II will probably
be wiped ont every six or seven years.
! The work Of Mr.. Burgess on soil
study has shown that the soils are high
lily acid and that ammonifIcation and
nitrihcation are very low. An investi-
CATION y under way TO determine the
latlative merits Of finely pulverized
licoral rock with the comparatively
coarse sand commonly employed in lin
ling acid lands. -, y 80.
| On the subject Of fertilizer control
work, Mr.. Agee stated that experiments
Ishow that the majority of the planters
can increase their fertilizations.. BY
beginning with slight increase, he
said, planters can 60 in for more in.
tensive cultivation and fertilization.
Work On Seedlings
In reviewing the work on raising
seedhngs, Mr.. Agee stated that during
the coming season the station proposes
TO propagate seedlings on all the Isl.
anda and arrangements are already un.
Eder way with several plantations to
facilitate this work. 3D..
Reporting irrigation and soil mois-
tire experiments, Mr.. Agee illustrated
the moisture conserving power of trash
left on the fields. With trash the soil
showed thirty per cent of moisture be-
fore irrigation and thirty.six per cent
after irrigation and without trash TWEEN
Ity.six and O half per cent before irri.
Egation and thirty-two per cent after
Irrigation. s.-'.
II Putting cane trash in alternate fur
'lrows and leaving the intervening fur.
rows clear for irrigation was reported
MS giving favorable results as the
scheme surmounts many difficulties in
handling trash on irrigated plantations
and offers pronounced possibilities of
economy on irrigation.
Discussion On Report
Discussion on the report centered ON
the success of H-109 cane variety, need
Of potash in the soil and the work of
extending field experiments TO the plan
tations, Mr.. Agee and Mr.. Larsen of
the station have many experiments I'M
der way now, but none will show def
mite results before a year. Confidence
Twas expressed that the experiments
would prove most valuable, and Il was
here that the members of the associa-
tion gave their hearty endorsement to
\ extension of this work as the best
kmeans of aiding the work Of the sta
tion in finding "the best way to raise
larger crops at less expense per ton of
sugar ready, 10 ship"
ion the subject of potash Mr. Bot
tomley raised the question Of whether
my effect was felt from lack of this
+ iperedient of fertilization. Mr.. ARee
tpointed out that the more extensive
nse of nitratss had done more good
harm. The soil of Hawaii, he said,
NAV not need as much potash as is sup
posed.
MT. Peck stated that it is impossible
to tell at this time whether the loss of
pOt0sh is felt or not, but from the APP
pcaranee of some cane indications are
| bVt " lIOuh tut lOBb. HIS
Helief was that unless some other fer
iization ingredient was found to re-
','""" potash the yield of cane would
suffer.
at is sound practise" he said, "to
""tnrn as much as possible Of potash to
he soil 1t is a policy of conservation
hat viii have its reward in the flu.
'ure.D
, 'ames Johnston, Of Ookala, stated
that the increased percentage of nitro
con his increased the yields of cane on
the RjiO coast this year, the highest
"""ntNaes of yields being realized of
Tony IN tn" last ten years. However,
b" said ii is u question whether the
added 10" Of potash would not have in
""o""od the cane yield even more.
On the extended use of, H.l09 va
"i"tv George F. Renton suggested that
= h"d becOme so successful that it
or'd b" considered well past the ex-
"crjmental stage. Frank A. Alexander
"d'"d 'h"t Of all the varieties he had
tied II 100 was the best and that his
"cmponv was spreading it as fast as
""rs'ble. late cutting as well as early
cutting yields good shoots, he said.