MANURES FOR SILAGE CORN 155 
of twelve tons than for a crop of eight tons; 
proper manuring will frequently make this differ- 
ence in yield, other things being equal. It is rec- 
ommended that manure be applied either in the 
fall or winter on sod, at the rate of eight to ten 
tons per acre, or in spring after the land is plowed 
and previous to planting. There is no crop that 
will utilize to such good advantage the coarse ma- 
nures as corn; it is a great forager, and at the 
season of its greatest demands, when it makes its 
most rapid growth, the coarser organic manures 
are more readily changed and converted into active 
substances than would be the case with such crops 
as wheat or grass, that mature early and require 
a large proportion of their food before changes 
in the organic compounds can take place in the 
soil. 
It is essential, also, in order that the nitrogenous 
material of the manure may be completely utilized, 
that abundance of minerals shall be at the disposal 
of the plant. Therefore, a liberal fertilization with 
available forms of phosphoric acid and potash, is 
also recommended. Usually, an application of 
300 pounds of acid phosphate, or its equivalent 
of phosphoric acid from ground bone, when there 
is an abundance of organic matter, and 100 pounds 
of muriate of potash, broadcasted, will very 
materially inerease the yield. 
An old practice, which has many points in its 
