FLORIDA STATE HORTICULTURAL SOCIETY 
75 
ers with the quantities of sulphate of 
ammonia they had contracted to deliver. 
Furthermore, they have had difficulties in 
getting box cars in which to ship their fin¬ 
ished product, in common with other 
manufacturers in the north. 
The spring of 1917 finds producers un¬ 
able to make any sales for prompt ship¬ 
ment as all their production is taken up 
on existing contracts. Demand is ahead 
of supply and present cost the highest 
known. 
COTTON SEED MEAL 
Cotten seed meal has been getting to 
the point where we must consider it as a 
feeding material rather than a fertilizer 
material, but it should be considered in 
this discussion since it has been so largely 
used as fertilizer material in the past. 
The diverting of large quantities of cot¬ 
ton seed meal from fertilizer markets to 
feeding markets has caused fertilizer de¬ 
mand which formerly went to cotton seed 
meal to turn to other sources of plant food 
thus abnormally increasing demand for 
such other materials. The last two cot¬ 
ton crops have been short, not only on ac¬ 
count of the uncertain market and bad 
credit conditions which caused farmers to 
decrease acreage in 1915, but also on ac¬ 
count of storms, boll weevil conditions, 
and insufficient fertilization. In addition 
to the supply being shorter than usual, 
demand for feeding purposes has been un¬ 
usually heavy because of high price of 
other feeding stuffs. 
PACKINGHOUSE PRODUCTS 
With regard to the packinghouse pro¬ 
ducts, blood and tankage, there has been 
a gradual decrease in supply of cattle in 
the United States for some years. It may 
interest you to know that only seven 
pounds of dried blood and twelve pounds 
of tankage are obtained from each aver¬ 
age full grown animal in good practice, 
hence it takes about three hundred ani¬ 
mals to yield a ton of blood, and about 
170 animals to yield a ton of tankage. 
Furthermore, it is only in the larger and 
better organized packinghouses that these 
materials are properly saved. In country 
killing and small slaughterhouses these 
materials either go to waste or are han¬ 
dled in some other manner. This short 
supply of food animals is reflected in the 
high prices which are being paid for hogs 
and cattle at all centers. Furthermore 
shortage of other materials, especially 
sulphate of ammonia and cotton seed 
meal, has caused an unusually heavy de¬ 
mand to turn to blood and tankage in the 
face of a supply which is short anyway. 
Another factor entering into the packing¬ 
house product situation is that there is 
an increasingly heavy demand for these 
products for feeding purposes, especially 
in the Middle West, and materials which 
might otherwise go into fertilizer pro¬ 
duction are being carefully selected and 
put into feeding meal for cattle, hogs, etc. 
OTHER FERTILIZER MATERIALS 
There are a number of other fertilizer 
materials which are used to some extent, 
but their production and also the demand 
for them is limited, and it is hardly neces¬ 
sary to mention them in an article of this 
kind. 
