The Kennewick courier-reporter. [volume] (Kennewick, Wash.) 1914-1938, 1932-08-18
STRAWBERRY FERTILIZATION


Nay Both, the question Of straw
berry fertilization was gone over
with him. DIR. barrow is at least
one of the formost strawberry
specialists in the country, having
come to this section from Wash
lngton D. C. and having spent con-
siderable time in practically all of
She strawberry sections of the u.
q.
DIR. Darraw varified the work
having been done by one of the
eastern station, that late summer
fertilization of strawberries was
She proper time if one wished to
affect yield materially for the
coming season. In talking this
over with DIR. barrow he was Of
The opinion that fertilization aft
er mid-August would be better
than early August fertilization.
From the results obtained from
fertilizer work having been carried
here in the county thru demonstra-
Sion plots it would seem that if the
ground has been well MANFRED
chat it would be no further need
of fertilizer application other than
nitrogen and possibly phosphate
If the ground has been cultivated
Ter more than ten or twelve years,
and has not had materially heavy
applications of phosphate in some
form or another during that time.
Manures are usually low in phos-
phate and hence the application of
manures alone unless made in very
large applications there is apt to
be some phosphate lacking. IL a
reasonably good manure applica-
ion, say 10 to Is tons, has been
made some time this season, then
there might be no need of nitro
zen fertilization this fall and if
any nitrogen was applied in our
opinion it should be ammonium
8ulphate at the rate Of not to ex-
coed 200 pounds per acre. lie no
smAnure has been applied this sea-
aon and no other fertilizers have
been applied, then we believe that
one could easily go to 400 or
even 500 pound application of am
aaonum sulphate or in case there
Is possibility Of lack or phos-
phate then the use Of 500 pounds
of ammophos b might be the best
combination or 500 pounds of
Iphosphate.
If each person interested in the
securing q good crop of berries
raor next year will check the above
statement closely and then use
their judgment as to the amount
OF nitrogen to apply, based upon
recent fertilization application, in
-6eluding manures then one should
he able to secure good results.
A new plot was laid down this
wear in which potash and phos-
pilates were applied alone and in
combination at the rate of 500
npounds superphosphate and 400
7pounds potassium sulphate. There
*vas no increase that could be
<eredited to the use of either of
Cheese fertilizers or the c0mbina-
t$ion when compared to check plots
left within the field. This fertiliz-
Ger waG put on as early spring APP
Tplicati6n. 1t would seem that we
ARE justified in drawing the con-
aclusion that spring applications, at
least of fertilizers carrying high
proportion of phosphates and
potash could hardly give results.
Late fall and winter applications
Of manure or complete fertilizers
carry considerable organic matter
and might be worth while provid-
ing only nitrogen application is
made at this season of the year.
The county agricultural agent
would be glad to go into detail or
the program Of fertilization with
Mnyone wishing to take up this
matter.