Mexico weekly ledger., 1893-06-15

RESULTS OF EXPERIMENTS A T DIFFERENT STATIONS.
Missouri STATION BULLETIN No. I4.-.A trial of deep and
shallow tllage gave an increase of 143 bushels per acre, n III per
increase for the same method of tilage in 1890 of 1915 bushels per
acre, or 500 per cent. a $ a n average of duplicate plats. Average
acre, or 25.s per cent. A plat in the set having no tiTage, the
weeds being removed with a sharp hoe without stirring the soil.
yielded in both seasons, for the same plat, more than the deepiled
plats, but less than the shallow-tnled. Weekly determinations of soil
shanow-tHned plats had an average of 11.6 per cent. more moisture
than the deep-tiled plats, and 10 per cent. more than the plat receiv-
ing no tllage.
In test of different depths of cultivation with the hoe, running
from one to five inches deep, there was less difference in the yield
used. 1t is probable that the better conservation of moisture by deep
hoelng eounteTaets and BALANCES to some extent the effect of root
moisture increased regularly with the depth Of stirring. In their test
the soil was stirred with a hoe or spade. and no cron w a orown on
the land tested. Then a perfect mulch is formed, but, Is explained
in the body of this report, no such covering is made by the ordinary
GA light mulch of fine earth in one case, of sand in another, and
in a third of chaff, spread to a depth of one-half inch, gave as large
a yield for 1889 IS two adjoining plats having thorough tllage. The
mulched plats were never tiled.
'In a test of deep and shallow tilage where the root mutiation
was equal there was a gain of five bushels per acre. o. 1914 per cent.
in favor of shallow tilage, due, presumably, to the increased amount
of moisture conserved. An effort to determine the stage of develop
ment of the plant, at which the i'll effects of deep tlage are least
felt, showed a gain of So bushels per acre, or 124 per cent. from
compared with deep tllage, early and shallow afterwards. The trial
was not made in duplicate, and covers but one season. The results
tllage for two years, shows no relation between the amount of culti-
walton and the amount of corn harvested, so long as the weeds are
and Illinois experiment stations. A test of hilled Us. level cultivation,
where all other things Were s equal 4or sh nf ei; "a n increase Ts r OF Ito bushels Us Els
decisive enough to be conclusive, but point to a probable advantage
from billing. A comparison of tHlng way continuously and
cross blowing once for both seasons resulted in a gain of 20 bushels,
or So per cent. in favor of cross cultivation.
ONO STATION BULLETIN, No: I Vol. ", gives the average
results of experiments in 1890 with deep and shallow cultivation,
showing a slight advantage in favor of the latter method. Similar
experiments in 1888 and 1850, slightly favored the former method.
KANSAS STATION BULLETIN No. 80. gives results a S to fire.
ouency of cultivation of corn from which it appears that sin a wet
season like the last, and on soil of the character here employed, it is
possible to give corn too much, a IS well rs too little, culture"
ILLINOIS STATION BULLETIN, No. 20. In 1891, for the first
time n four years, there was a larger yield from a plat deep cultI-
waited than from one shallow cultivated. A culivator with narrow
spring teeth was used this year in the deep cultivation, in former
wears a shovel cultivator. For four years the average yields have
been at the rate of seventy-one bushels from deep and seventysix
from shallow cultivated plats, and seventy-three bushels from plas
not cultivated, except to remove weeds by scraping the surface with
a hoe"
.sNo appreciate effect on yield of field corn resulted from cut
ting the tops when in good condition for fodder, 0 removing the
tassels from alternate row as they appeared"
INDIANA STATION BULLETIN No. 80. ''The yield for four
wears ~(ISSS-o1) from cultvating to these different depths Cone to
three inches) are tabulated. The largest average yield was from
shallow cultivation Zone inch).
".In 1901, six different kinds CT corn culivators were tested.
Three of them had been tested during three previous years. Those
corn cultivators which run shallow, but thoroughly pulverizine the
soil, and leave the surface approximately level, have given Tie best
satisfaction.