When clover seed is sown in nurse crops that are matured
before being harvested, the pasturing of the stand secured the autumn
following is usually to be avoided. Removing the covering which the
plants have provided for themselves is against their passing through
the
winter in the best form. In some instances the injury proves so serious
as to result in a loss of all, or nearly all, the plants. The colder the
winters, the less the normal snowfall and the more the deficiency of
moisture, the greater is the hazard. But in some instances so great is
the growth of the clover plants that not to graze them down in part at
least would incur the danger of smothering many of the plants,
especially in regions where the snowfall is at all considerable.
But when the seed is sown alone or in mixtures of grain and even of
other grasses in the spring, grazing the same season will have the
effect of strengthening the plants. This result is due chiefly to the
removal of the shade that weeds and other plants would furnish were
they not thus eaten down, but it is also due in part to the larger share
of soil moisture that is thus left for the clover plants. Pasturing
clover sown thus should be avoided when the ground is so wet as to poach
or become impact in consequence. Unless on light, spongy soils which
readily lose their moisture, such grazing should not begin until the
plants have made considerable growth, nor should it be too close, or
root development in the pastures will be hindered.
It would not be possible to fix the stage of growth when the grazing
should begin on clover fields kept for pasture subsequent to the season
of sowing. The largest amount of food would be furnished if grazing were
deferred until the blossoming stage were reached and the crop were then
grazed down quickly. But this is not usually practicable, hence the
grazing usually begins at a period considerably earlier. In general,
however, the plants should not be grazed down very closely, or growth
will be more or less hindered.
Grazing clover in the spring and somewhat closely for several weeks
after growth begins, has been thought conducive to abundant seed
production. This result is due probably to the greater increase in the
seed heads that follow such grazing. This would seem to explain why
clover that has been judiciously grazed produces even more seed than
that clipped off by the mower after it has begun to grow freely.
In nearly all localities the grazing of medium red clover, and even of
mammoth clover, somewhat closely in the autumn of the second year, is to
be practised rather than avoided. These two varieties being essentially
biennial in their habit of growth will not usually survive the second
winter, even though not grazed, hence not to graze them would result in
a loss of the pasture.
With nearly all kinds of clover there is some danger from bloat in
grazing them with cattle or sheep while yet quite succulent, and the
danger is intensified when the animals are turned in to graze with empty
stomachs or when the clover is wet with dew or rain. When such bloating
occurs, for the method of procedure see page 95. The danger that bloat
will be produced is lessened in proportion as other grasses abound in
the pastures.
Previous: Amounts Of Seed To Sow
Next: Harvesting
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