Experiment Station Record, Volume 4, August 1892-July 1893 Page: 28
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28 EXPERIMENT STATION RECORD.
Nitrate of soda 160 pounds, muriate of potash 160 pounds, and dissolved
boneblack 320 pounds were used two by two and all three together;
and plaster 400 pounds was used alone on 1 plat. In addition to the
tabulated yields are given the percentages of dry matter in the corn
and the number of pounds of each required for a bushel of shelled corn.
In several instances the results furnished more or less conclusive indications
of the special needs of the soil for the crop grown.
Special corn experiments (pp. 186-197).-" This class of experiments
was planned for the purpose of studying the best proportions of phosphoric
acid and potash for use in growing corn on soils whose peculiarities
had already been studied by means of soil tests." Consequently
the nitrogen supply was constant for all the manured plats, and dissolved
boneblack and muriate of potash were applied in varying
amounts. There were three experiments on 10 or 11 plats. The
yields and financial results are tabulated. These are different for different
trials, and no general conclusions are drawn as to the best
combination of fertilizers for corn.
FIELD CROPS.
A. C. TRUE, Editor.
Special nitrogen experiment on grass, C. D. WooDS and 0. S.
PHELPS (Connecticut Storrs Sta. Report for 1891, pp. 29-40).
Synopsis.-Mixed minerals alone or combined with nitrate of soda or ammonium
sulphate in different amounts, were applied to a mixture of grasses and clover.
The most profitable returns were with 320 pounds per acre of nitrate of soda
combined with mixed minerals. Minerals alone were unprofitable. Nitrogenous
fertilizers increased the protein in the grasses.
The special nitrogen experiments on grass reported in the Annual
Report of the station for 1890 (E. S. I., vol. III, p. 376) were continued
in 1891 without change. As there explained, the general plan was to
combine nitrogen with mixed minerals, furnishing the former as nitrate
of soda and as ammonium sulphate in amounts equivalent to 25, 50,
and 75 pounds of nitrogen per acre, respectively. The grasses growing
on the field are principally timothy, redtop, and Kentucky blue grass,
with a slight admixture of clover and some weeds. The grass was cut
for hay June 29. The yields of hay and of separate food ingredients,
the composition of the hay grown with different fertilizers, and the
financial results are tabulated for 1890 and 1891.
The addition of mineral fertilizers in 1890 increased the yield of clover very markedly,
and somewhat so in 1891, but did not seem to increase very decidedly the yield
of grass.
The yield of hay in 1890 increased with the quantity of nitrogen supplied, whether
it was applied in the form of nitrate of soda or sulphate of ammonia. In 1891 the
largest yield was obtained from the plat on which nitrate of soda was applied at the
rate of 50 pounds per acre.
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General Index to Experiment Station Record Volumes 01-12, 1989-1901 and to Experiment Station Bulletin Number 2 (Book)
A topical, alphabetically arranged index to volumes 1-12 including experiment station records, publications reviewed, and foreign publications. It has a 'Consolidated Table of Contents' which lists all editorial notes and publications of the experiment stations and Department of Agriculture from the referenced volumes.
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United States. Office of Experiment Stations. Experiment Station Record, Volume 4, August 1892-July 1893, book, 1893; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc5050/m1/58/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.