The Cross Section, Volume 15, Number 9, February 1969 Page: 3
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February, 1969 THE CROSS SECTION Page 3
more irrigation water but the wet soil
following irrigation decreased rainfall
storage between irrigation and planting
time. Rainfall following irrigation
usually did not wet the soil below the
depth previously wet by irrigation.
The only exception was 10 inches of
rainfall over a 30-day period in late
spring, 1965.
HOW MUCH WATER TO APPLY
The amount of pre-plant irrigation
water that should be applied depends
upon the amount of moisture in the
soil before irrigation begins. Soils
that are dry deep need to have the
entire root zone filled by pre-plant
irrigation. Soils with moderate to
good deep moisture will hold only a
medium to light irrigation without
losses to deep percolation. Heavy
soils can hold a total of eight to nine
inches of available water while mixed
soils hold six to seven inches. The
slow intake rate of the Pullman soils
must be taken into consideration since
it may limit the degree to which the
root zone can be filled. Only the irri-
gation water needed to finish filling the
effective soil root zone will be profit-
able in crop production.
Studies have been conducted at the
Texas A&M University Agricultural
Research and Extension Center at
Lubbock in managing available pre-
plant irrigation water. Data indicates
that the amount of pre-plant irrigation
that is profitable is directly related to
the summer irrigation capacity or rate.
Producers with irrigating capacity to
cover their planted acreage with one
or more timely summer irrigations can
use lighter pre-plant irrigations (three
to four inches) rather than six to eight
inches and still produce about the
same yields. Cotton yields at the Cen-
ter averaged only 19 pounds more per
acre with eight-inch pre-plant irriga-
tions than with four-inch. Both test-a
tMI-
Judge Howard C. Davison of the 99th District Court in Lubbock, is shown ad-
dressing the group at the swearing-in-ceremony. Left to right, Ross Goodwin,
Judge Davison, Russell Beans and John Douglas Pitman.r;---
Judge Howard C. Davison is shown above as he swears in two recently-elected
Water District Board members. Left to right, Ross Goodwin, Muleshoe, Judge
Davison, Lubbock and John Douglas Pitman, Hereford. Each man was elected to
a two-year term....- ---6- -r -- -1 -p -
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Effectiveness of irrigation methods, practices and skills are shown by the amount
of water applied during an irrigation and its influence on profits. The number of
rows set and for how long determines the gross irrigation amount from a specific
irrigation well.Mr. Russell Bean, President of the
Board of Directors of the High Plains
Water District, acted as master of
ceremonies at the swearing-in-cere-
mony. To the right is John Douglas
Pitman the new Board member from
Hereford.* * *
4Oah..-continued from page 1
serve two-year terms on the five-man
* District Board. The other members
on the Board are Mr. Russell Bean,
President, from Lubbock; Chester
Mitchell, Vice President from Lock-
ney, and Mr. Weldon Newsom, Secre-
tary-Treasurer of Morton.
PRECINCT NO. 3
PETITIONS DISTRICT
A petition has been filed with the
Board of Directors of the High Plains
Underground Water Conservation Dis-
trict No. 1 asking for the annexation
of Commissioner's Precinct No. 3 of
Crosby County into the Water Dis-
trict.
The Board has set the hearing for
ge March 14, at 10 a.m. in the Commu-
to nity Center in Lorenzo.
Commissioner's Precinct No. 3 of
Crosby County joins Lubbock Coun-
ty on the east and includes the town
two of Lorenzo.
All interested individuals are urged
to attend and voice their opinions,
either for or against Commissioner's
Precinct No. 3 of Crosby County be-
coming a part of the Water District.
., Bill...
-continued from page 1
an emergency and an imperative pub-
lic necessity that the Constitutional
Rule requiring bills to be read on
three days in each house be sus-
pended, and this Rule is hereby
suspended, and that this Act take ef-
fect and be in force from and after its
passage, and it is so enacted.
The Board of Directors of the Highplots were irrigated twice during the
summer.
The four inch difference in the pre-
plant amount was found to be more
profitable when used timely to supple-
ment rainfall during the growing sea-
son. Yield increases during the study
averaged 70 pounds more with two
summer irrigations than with one.
Both of these water management prac-
tices used 12 inches of irrigation water
- an eight-inch pre-plant and one
four-inch summer irrigation and a
four-inch pre-plant and two four-inch
summer irrigations.
These pre-plant studies also show
that producers who have trouble cov-
ering planted acreage with one sum-
mer irrigation may benefit from a
larger pre-plant application - pre-
ferably one that fills the root zone.
This will require four to eight inches,
depending on the initial soil moisture,
texture and depth. Limited summer
water can be more effective by being
applied timely through alternate fur-
row irrigation.
Producers with only limited irriga-
tion water should plant skip-row and
irrigate only the planted area since
they cannot cover all of a solid planted
crop during the summer. Two in and
one out cotton that received a pre-
plant plus one summer irrigation pro-
duced yields of more than 100 pounds
-continued on page 4Plains Underground Water Conserva-
tion District No. 1, realizing the in-
creasing cost of tax collecting and
assessing, have introduced this bill
which will enable the Board of Direc-
tors to increase the amount paid to
the local tax collectors and assessors.----
T HE CR O SS S EC T IO N
Page 3
February, 1969
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High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 15, Number 9, February 1969, periodical, February 1969; Lubbock, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1532927/m1/3/?q=%22~1%22~1: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.