As shown in Table III the analyses of the first and second years'
growth of sweet clover compare favorably in food elements with corn
silage. It is to be expected that the silage made from the sweet clover
straw would contain less protein and carbohydrates than that made from
the entire plants, as most of the leaves shatter from sweet clover
before the seed crop is cut. Considerable protein and carbohydrates
were lost from the silage made from the first crop the second season,
as the plants were run into the silo as soon as they were cut. Much
juice was pressed from the bottom of this silo. An analysis of this
juice is given on page 21.
SWEET CLOVER AS A SOILING CROP.
As a soiling crop sweet clover has been used to only a very limited
extent. The amperage yields of green matter vary from 6 to 15 tons per
acre, The season for soiling may commence when the plants are 12 to
15 inches high and continue until flower buds appear. An area of such
a size that the plants may be cut every four or five weeks should be
selected. The plants should not be cut closer to the ground than 4
inches during the first part of the season and 9 to 12 inches during
the latter part of the season. On account of the high protein content
and the large amount of forage produced on a relatively small area,
sweet clover may profitably be fed in this manner when more desirable
soiling crops are not to be had.
SWEET CLOVER AS A FEED.
PALATABILITY OF SWEET CLOVER.
The woody growth of sweet clover as it reaches maturity and the bitter
taste due to coumarin have been the principal causes for live stock
refusing to eat it at first. On this account many farmers have assumed
it to be worthless as a feed. It is a fact that stock seldom eat the
hard, woody stems of mature plants, but it is true also that stock
eat sparingly of the coarse, fibrous growth of such legumes as red or
mammoth clover when they have been permitted to mature and have lost
much of their palatability. All kinds of stock will eat green sweet
clover before it becomes woody, or hay which has been cut at the proper
time and well cured, after they have become accustomed to it. Many
cases are on record in which cattle have refused alfalfa or red clover
when sweet clover was accessible. Milch cows have been known to refuse
a ration of alfalfa hay when given to them for the first time. Western
range cattle which have never been fed corn very often refuse to eat
corn fodder, or even corn, for a short time, and instances have come
under observation in which they ate the dried husks and left the corn
uneaten. When these cattle were turned on green grass the following
spring they browsed on the dead grass of the preceding season's growth,
which, presumably more closely resembled the grass to which they were
accustomed. Such preliminary observations should never be taken as
final, even when they represent the results of careful investigators.
When cowpeas were first introduced into certain sections of this
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