40 HINTS ON SOILS AND FERTILIZERS 
fertility during the winter months, and then 
he can haul this material out on his land in 
the spring, and spread it by means of the wide¬ 
ly used manure spreader. 
There is another method that is also used 
by many farmers in saving this fertilizer, and 
that is the process of hauling it out every day 
during the winter, directly from the barn. This 
is more tedious, as there are many days dur¬ 
ing the winter when it is almost impossible 
to get out on the land, due to snow storms, 
etc. Where the land is hilly, it is not advis¬ 
able to spread manure in the winter time, as 
a considerable portion of the liquid material 
will run off sloping land, and be lost. How¬ 
ever, this objection can be overcome by wait¬ 
ing until spring to spread the manure on the 
hilly portions and fertilizing all the level land 
during the winter months. This method of 
hauling saves rehandling in the spring. This 
fact is appreciated by many farmers, who al¬ 
ways have about twice as much to do as they 
can accomplish during the spring months^ 
There is also a slight loss of beneficial bacteria 
incurred by this method, but not enough to 
offset any of its advantages. On the whole, 
this method has been worked out very satis¬ 
factorily by quite a large number of American 
farmers. 
There is quite a direct correlation between 
the kind of feed given to farm animals, and 
the value of the manure. Animals that are fed 
feeds low in protein produce a manure that 
is also low in nitrogen. This is a factor worthy 
of attention. Inasmuch as barnyard manure, 
