Sweet Clover: Harvesting and Thrashing the Seed Crop — John Shaqi
Sweet Clover: Harvesting and Thrashing the Seed CropCoe, H. S.
Science
Sweet Clover: Harvesting and Thrashing the Seed Crop
Coe, H. S.
Sweet clover -- Harvesting
It is the practice in regions where a grain header is employed to
permit the plants to become somewhat more mature before cutting the
seed crop than in sections where other machines are used. More seed
is shattered when the plants are cut at the latter stage, but this is
not necessarily a loss, as the grain header is employed for the most
part in semiarid regions, where the shattered seed is depended upon to
reseed the land.
LOSS OF SEED FROM SHATTERING.
From one-fifth to three-fourths of the total seed yield of sweet clover
is lost from shattering. The percentage of the loss which occurs before
harvesting will depend largely on the time the crop is cut. Much seed
may be lost if harvesting is delayed for only a few days, and many
fields have been observed in which at least 90 per cent of the seed had
shattered in less then two weeks after the time the plants should have
been cut.
The percentage of seed which is lost in harvesting will depend largely
upon the manner of handling the crop. The binder or header may be
equipped at a small cost, so that much of the seed which ordinarily is
lost while cutting may be saved. Much shattered seed will be saved by
using wagons with tight platforms or platforms covered with canvas. All
unnecessary handling should be avoided.
Shattering may be reduced to a minimum by cutting the plants when they
are damp from rain or dew. It is the practice in some regions to cut in
the early morning or late evening, but this procedure will apply only
to small acreages, since it is necessary to cut the crop as soon as
possible when it reaches the proper stage for harvesting. It is a good
practice to cut sweet clover at night, as the plants usually are damp
at that time.
MACHINERY USED FOR HARVESTING THE SEED CROP.
No machine thus far manufactured has given entire satisfaction for
cutting the sweet-clover seed crop. On account of the ease with which
the pods shatter, it is a question whether any machine can be devised
which will handle this crop without the loss of some seed. It is
possible and practicable, however, for farmers at a small cost to equip
their binders with pans and guards, so as to save most of the seed
which otherwise would be lost.
THE ORDINARY MOWER.
The ordinary mowing machine is one of the most unsatisfactory devices
used for harvesting this crop, as the subsequent handling necessary
to place the plants in windrows or cocks causes much of the seed to
shatter. The use of this machine for this purpose should be avoided
whenever possible.
THE SELF-RAKE REAPER.
The self-rake reaper is one of the most efficient machines employed to
cut sweet clover for seed. (Fig. 1.) This machine deposits the newly
cut plants with the tops all turned one way in gavels or bunches at the
side, so that the horses do not trample them on the next round. A high
stubble also may be left, thereby reducing the weight and bulk of the
plants which must be hauled to the thrashing machine.
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