The Topeka state journal. [volume] (Topeka, Kansas) 1892-1980, 1916-03-20
USE DUMMY TREE
Aggie Students Practice Spray
ing During Cold Weather.
Get Actual Orchard Work IN
College Building.

Manhattan. Kan. March 2O--dor-
ticuIture students in the Kansas State
Agricultural college are learning ~
spray apples, peaches, grapes ~; 49,
straw berries without ever gong IIle '
an orchard, a vineyard or straw perry
patch Nor do they need mules 10
haul the spraying machinery
Their orchard" is a room Win d
cement floor. Their tree is TAR
get''-the invention of one OF the IN
structors. Their machinery uoes sa, :
bulge. and they recognize no season
NU,inter is the time of making ZAP
plications.' ,+ Of
In one room in the basement OF
Horticultural hall may be seen eNeiS
Monday afternoon NUMBER Oh sclio
arly-looking young men-,cnelllls' 49,, ~
would say and chemists they are. lheg
are standing at long table, pouring ana
measuring liquids. .o of
Filtration tests in arsehate
lead" says the nearest sclentlst' III
answer to question. o
Another student is taking a Bauhle
reading in connection with tests ~
determine the amounts of impurities
in lines affecting their value TOT use
in spraying mixtures.
The next two are making cohceh-
tra.ted Bordeaux A fifth is bent over
the knottv problem: with lime at
S1.35 per $50 pounds and copper SUI
phate at cents per pound what
would the materials cost for spraying
an SO-acre apple orchard containing
40 trees to the acre. three times WIN
bordeaux mixture? Consider that each
tree REQUIRES five gallons per applica-
ton"
Movable Screen Target.
A second division of the class is in
room across the hall-in the orchard:
As you enter you detect the smell Oh
gasoline and hear the roar OF en-
engines A group of students are toll
ing at the machines, examining the
tvpes of valves the engine, the tank
the drive and the pump. Every FORM
of machine is at their disposal from
hand-pump to high-power sprayers.
SPRAYING is actually going on at
the other end of the room. The stream
is directed at the target-a movable
screen capable of recording relative
forces exercised upon it by the spray
nozzIes which are held at stated dll-
fererces away Each nozzle is being
tested for force of spray. pressure to
which it is best adapted, kind or spray
and amount of spray delivered per
minute Two of the orchard hands
are determining the width OF the arc
by means of a stationary target ana
will afterwards put their results in the
form of diagrams on graphing paper
Where does the practical work come
in2 Answer this question, Mr.. y !:
"GiVe names of MOBILES which would
be best adapted to spraying the FOL
lowing crops, when the given pres
sures only are obtainable with the ma
chine used: Apple trees, petal fall APP
plication, pressure 200 pounds; peach
trees, in fruit, pressure 200 pounds;
grapes, for leaf hopper, pressure 100
pounds; straw berries. for leaf spot.
pressure so pounds; apple trees, dor
mant, cleanup spray, pressure 15O-
$50 pounds
or take this query. aften asked:
(Which would probably prove more
efficient a regular nozzle on an angle
Y or an angle nozzle on straight
Y -
Truly this work is part of a great
preparedness program" to provide
for the trouble sure to come when
spraying time rolls around.