The silver state news. [volume] (Winnemucca, Nev.) 1907-1909, 1909-07-17
TO DEMONSTRATE
IRRIGATION
Especial to silver state News

&0r<EA<1 % C4sef C~<AS sS8
SPOKANE. Wash, JeIy E-Four
teen approved methods of irrsgating,
adapted to practically every kird Of
lard asd tie varioss tree, root zAI
vine crops, will be Demonstrated on a
15zere tract in the spokane salIey
sIfhin . stoness throw Of the city
lsmits in connection sTth the I7th se.
sions If the National Irrigation eos
gress in Spokane, Anggss Q 70 IL The
purpose 10 to afford the delegates ~.
the congress AID visitors an opporruni-
~ 70 study the best known means "
supplying moisture By ~syrIEeEsi means
10 orchards, berry and sugar beet
Eelds, vineyards and hay and gratis
lands. There will also be -denaoastrz-
rIOns By manufacturers of apparatus
used Ia modern irrigasIon. Ten acres
Of land has been set aside for displays
81 machinery
What is considered BY experts 10 be
the acme " scientific irrigation and
At the same time the most economical
method will be shown in the use Of
porous tile pipe laid under the ground
The principal 10 the antithesis If drain
age In that the pores and joints or the
pipes give out sufficient water 70 sup
ply the plant life above them This
plan IL declared 70 be practicable in
supplying moisture for fruit trees, veg
etabIes, berries and almost every kind
of product, the advantage being that
the water carried by the pipes ~ dis
charged directly below the roots Of
the plants, instead If on the surface Of
the soil.
rs comparison with the foregoing
plan there viii be shown the primitive
method, praetieed by ~irrigators before
il was learned boa 10 distribute water
economically and 10 the best adyant-
age. Nc grading or Ievelng was done
on this tract; in fact, In contour it II
an nature left il. Water 10 taken TO
the highest point on the land TO dis
tribute itself over the ground. The
idea IN this In 10 show waste Of water
and soil by washing and erosion.
The individual system, also 70 be
demonstrated, calls for piping water
10 every tree. To make it effective the
water must have a head The pipe,
which may be small, is run to within
three feet of a tree TO discharge water
into a circular ditch or basin built
around the tree. This method is de
sirabIe In districts where q ANAL
amount of water is desired TO do a
large amount Of irrigating. There il
no loss from evaporation or seepage,
and only the ground in which the tree
grows receives the water. The cost o.
installing this system 10 much larger
than for the open ditch or fume sys
tenn, but the difference 10 soon made
up On the cost Of water, or where it Ia
paid for by the aere-foot.
Subirrigating by means Of open
bitches will also be shown. The
bitches are Of such depth that the
water 10 absorbed without moistening
the surface. This method 10 advan-
tageous where soil has a tendency TO
bake or become erusted after water
ing.
Two tracts will show the practiea.
bility Of watering steep land in open
bitches. The i~nelines on the tract are
from 30 TO 40 degrees. The other
shows the terrace system, water being
dropped from one terrace to the other
1t win be demonstrated that land ear
be irrigated by this plan without wash
ing or erosion.
One form Of the eorrugation system
IL applied to soil where the land slope;
in more than one direction, the ditehe.
being made TO follow tine natural con
tour, which needs no grading. WateI
IL supplied through one box and thu
bitches spread out in fan shape owe
the land.
u. NJ Speck, chairman of thu
practical demonstration committee OF
the irrigation congress, will be assist
ed in the demonstrations by II. Dele
pine, an experienced engineer, wh'
has charge Of the work, and practiea
irrigators and growers from various
parts If the United States and Canad'
In explaining the various methods o
watering land to obtain the best result