small cereals, corn and
all the sorghums, rape, and all kinds of garden vegetables and
strawberries. It is, of course, better adapted to short than to long
rotations, because of the limited duration of the life of the plants.

The length of the rotation will, of course, depend upon various
contingencies. Frequently, the clover is cropped or pastured but one
season following the year on which the seed was sown, whatsoever the
character of the crops that precede or follow it, but in more instances,
probably, it is used as crop or pasture for two years. When timothy is
sown along with this clover the pasturing or cropping may continue for
one or more seasons longer before the ground is broken, but in such
instances the timothy will have consumed much or all of the nitrogen put
into the soil by the clover, save what has escaped in the drainage
water. One of the best rotations in which to sow mammoth clover, as also
the medium red, is the following: Sow in a nurse crop of rye, wheat,
oats or barley, as the case may be, in order that it may be pastured or
cut for hay the following season, and then follow with a crop of corn or
potatoes. This in turn is followed by one or another of the small
grains. This constitutes a three years' rotation, but in the case of
mammoth clover it is frequently lengthened to four years. The year
following the sowing of the clover, it is cut for hay or for seed, and
the next year it is pastured with or without a top-dressing of farmyard
manure. This rotation meets with considerable favor in certain areas of
Wisconsin, well adapted to the growth of the plant.

=Preparing the Soil.=--The preparation of the soil called for by the
mammoth clover is virtually the same as that required when preparing a
seed-bed for the medium red variety. (See page 74.) Clay loam soils,
whatsoever their color, cannot easily be made too fine and smooth, and
the same is true of sandy loams. Stiff clays should be made so fine as
to contain ample loose mold to germinate the seed readily, and yet they
ought not to be made so fine that they will readily run together under
the influence of a soaking rain. Usually, such soils are seldom made too
fine, but sometimes they are. The aim should be to firm sandy soils,
especially when light enough to lift with the wind, and to leave them
more or less uneven on the surface when the seed is sown.

In many States the ground should be plowed in the fall for spring
sowing, and in yet o