than when it is fed off by grazing.
Experiments have also demonstrated that the development of root growth
is much enhanced in medium red clover by taking a second cutting for
hay or seed. They have also demonstrated that more nitrogen is left in
the soil by clover roots after a seed crop than after a crop of hay.

From what has been said, it will be apparent that the extent to which
clovers enrich the soil will depend upon the strength of the growth of
the plants and certain other conditions. It will not be possible to
reduce to figures the additions in plant food which clovers add to the
soil other than in a comparative way. Dr. Voelker has stated that there
is fully three times as much nitrogen in a crop of clover as in the
average produce of the grain and straw of wheat per acre. Dr. Kedzie is
on record as having said that in the hay or sod furnished by a good crop
of clover, there is enough nitrogen for more than four average crops of
wheat, enough phosphoric acid for more than two average crops and enough
of potash for more than six average crops. He has said, moreover, that
the roots and stubble contain fully as much of these elements as hay.

It will also be apparent that where clover grows in good form no cheaper
or better way can be adopted in manuring land, and that in certain areas
the judicious use of land plaster on the clover hastens the renovating
process. It is thought that in some instances the mere loading and
spreading of barnyard manure costs more than the clover and plaster.
Especially will this be true of fields distant from the farm steading.
It is specially important, therefore, that in enriching these, clover
will be utilized to the fullest extent practicable.

=Clover as a Weed Destroyer.=--Where clover is much grown, at least in
some of its varieties, it becomes an aid in reducing the prevalence of
many forms of weed growth. It is thus helpful in some instances, because
of the number of the cuttings secured; in others because of its
smothering tendencies, and in yet others because of the season of the
year when it is sown and harvested or plowed under, as the case may be.

Alfalfa and medium red clover are cut more frequently than the other
varieties and, therefore, because of this, render more service than
these in checking weed growth. The former is cut so frequently as to
make it practically impossible for most forms of annual weed life to
mature seed in the crop. The same is true of bie