Evening times-Republican. [volume] (Marshalltown, Iowa) 1890-1923, 1907-01-03
Eeonomizins Barn Yard Manure.

eGOUOU1I[Iu9 0dTus y ara wi anuF0s
| Much study has recently been given
the important question of the preserva-
ton and proper use of barn-yard man.
ure. For practical demonstrations ex-
periments on this subject We're made on
rotations of corn, oats and wheat, fol-
lowed for two years by clover and TIM
othy mixed, and on corn, oats and
wheat grown continuously. In these
experiments manure taken from fiat,
open yards, where it had accumulated
for several months during the fall and
winter, and had been subjected to the
conditions which affect the ordinary
open-yard manure of the average Ohio
farm, conditions which involve very
considerable losses" was compared
with manure treated as follows:
lot Of manure. taken from an open
yard, where it had accumulated during
the winter from daily cleaning out Of
the stable behind a herd Of dairy cows,
which had been literally fed on bran.
gluten meal, corn meal. hay and silage
was divided in the spring into four par
cells. On one parcel the finely ground
phosphate rock, from which acid phos-
phate Is made by treating with sui
phuric acid and which, in its untreated
condition, is known in the south as
floats" was busted as the manure
was thrown into pile; on second
parcel acid phosphate was busted: on
another crude potash known as kainit,
and on another, land plaster of gyp-
sum- these materials all being used at
the uniform rate of two pounds per 100
pounds OF manure, or 40 pounds per
ton. At the same time lot of man.
ure was taken from box stalls, where
1t had accumulated under the feet of
animals which were kept continuously
in their stalls. being given sufficient
bedding to keep them clean without
cleaning out the stalls. and similarly
treated.
For corn and wheat the manure was
applied as top dressing, being put on
with q manure spreader at rates of 4
and 5 tons per acre on each crop in the
rotation, and 2A to tons in the case
of the continuous cropping. The re-
suits Of the experiments, as measured
by the crop yields, show:
That 1t will pay we'll to give more
attention than is done on the average
farm to the preservation Of barn-yard
manure. first. by guarding 1t from the
sources of loss which occur in the orr
binary open barn-yard, and, second, by
treating it with materials calculated to
reduce the losses from escaping am
monia on the one hand and to increase
its contents of phosphoric acid on the
other.
To accomplish this purpose, acid
phosphate appears to be the material
producing the largest and most profit
able immediate increase in effective-
ness Of the manure, but the expert
nents strongly suggest the possibility
that the finely ground phosphate rock
from which acid phosphate is made
may be found an economical substituted
for the latter by using it as an alb
sorbent in the stables and thus secur-
ing an intimate mixture with the man.
ure in its fresh condition.
The yields were uniformly larger and
the increase due to the addition OF the
preservatives smaller In one case Of the
stall manure than In case of the OPEN
air manure, thus showing that either
with or without the addition OF pre-
servatives stall manure suffers less
loss and Is richer in fertilizing con-
stituents than open-yard manure.