COMPARATIVE YIELDS OF GRASSES. 199 
or weeds. Mammothclover grows to a larger size than com- 
mon red, ripens later, produces more hay, but does not give 
a second cutting, and one season usually exhausts it as with 
the red. Alsike clover is of finer growth than red, does not 
produce as much, though yielding well, and gives but one 
crop ina season. It thrives on wetter soil than red clover, 
and it is more persistent in nature. The comparative yields 
of these clovers under best conditions are shown with great 
fairness in table CIII. In table CII the red clover plot was in- 
jured by water. Table CI gives a fair comparison of red and 
alsike on poorsoil. Ordinarily the test on such land would be 
more in favorofthered. Theperennial nature of alsike when 
protected in winter by sufhcient snow was well shown in 
1901-1902. A field that in 1901 gave1.6 tons alsike per acre, 
yielded in 1902, an average of 2.5 tons, with a more favor- 
able season, nearly the whole crop being alsike. In the plot 
test in table CII alsike sown pure, gave a heavier yield in 
1902 than the first season. In this test, mammoth clover, 
which had been cut late the preceding year, also came on 
and gave a large vield. But the red clover plot was over- 
grown with foreign grasses. 
Alfalfa has been sown in three trials using hardy varieties 
but has never survived the winter. With clover so certain, 
it will not pay to experiment with alfalfa in the face of these 
results. 
Taking up the subject: of seeding brush-land, we must 
consider blue grass. Thisgrass is nowhere in the statesown 
for hay, but in the southern portion is sown, or spreads, in- 
to pastures, and in time crowds out everything else. It 
produces pasture up to about June, but during July, Aug. 
and part of September there is practically no feed furnished 
byit except drystalks. Its only possible use is in permanent 
pasture. The trials so far made, while not extensive enough 
for conclusive results, indicate that in this latitude the grass 
is of very little use even for pasture. It produces but scant 
feed and takes up the ground in place of other grasses. Its 
use should be restricted. The widest dependence must be 
placed on timothy, and for general seeding this may be mixed 
with red top using about one-fifth of the latter. It will 
probably pay to add clover on ordinary soals and especially 
