Report on the Agricultural Experiment Stations, 1953 Page: 77
The following text was automatically extracted from the image on this page using optical character recognition software:
FIELD CROPS 77
that for highest yields and best use of picking machinery, cotton
plants per acre should number at least 20,000 and not more than
60,000. Relatively large numbers of plants per acre helped to' overcome
the tendency of machine pickers to miss bolls growing close to
the ground surface; resulted in development of the lowest bolls at a
greater-than-usual height from the ground; produced taller plants
with fewer and smaller lateral branches, and thus increased the efficiency
of the machine; and reduced the quantity of litter picked up.
Weed control by flaming was effective and did not reduce the yield
of cotton, but could be used only from the time the plants were about
8 inches high until the first bolls opened.
Closer spacing better for upland cotton
Closer spacing of cotton in the row by the Oklahoma station has
decreased preharvest loss and the amount of trash in harvested cotton,
and has increased gross yields of lint and the efficiency of the stripper
harvesting machine. The New Mexico station (coop. USDA) found
that heavier stands of plants resulted in higher yields of seed cotton
per acre. The percentage of plants showing verticillium wilt symptoms
on infested soil have been lower on areas with heavier stands.
More plants evidently escape the attack of the wilt fungus and produce
a crop of bolls. Beneficial effects of heavier stands obtained on
fields varying widely in soil type and levels of fertility, suggest that
this practice is not limited in its application.
Storage of valuable cotton seed stocks
Breeding and genetic studies with cotton have stressed the need
to maintain the vitality of small valuable lots of seed for periods
longer than ordinarily possible in air-dry storage. The Tennessee
station (coop. USDA) finds that cottonseed may be stored safely in
sealed containers for longer than 10 years by controlling moisture and
temperature of storage and without special techniques or storage facilities.
The procedure is to dry the seed to about 7-percent moisture,
at a relatively low temperature-under 140 F. for seed with initial
moisture above 8 percent-seal it in airtight containers, and store it
in a cool place, under refrigeration of about 33 F. Refrigeration,
however, is not essential if the seed is dry.
Oil and protein contents of cottonseed
Seed of cotton varieties grown under dryland conditions by the
Texas station had higher averages of both oil and protein than seed
from plants grown under irrigation. Oil contents of stormproof-type
cottons averaged consistently higher and of protein contents slightly
higher than those for the normal boll types, but the average linters
yield of stormproof seed was considerably less.
Irrigation of cotton profitable in the South
Irrigation of cotton, in Mississippi station experiments, produced
a crop worth an average of $93 more per acre than nonirrigated cotton.
Irrigation totaling 6 inches of water in 5 applications cost $25.80
per acre including labor, fuel, and annual cost of sprinkler equipment.
Yields ranged from 665 to 977 pounds of lint per acre under irrigation
Here’s what’s next.
This book can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Book.
United States. Office of Experiment Stations. Report on the Agricultural Experiment Stations, 1953, book, 1953; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5989/m1/79/: accessed October 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.