74 ASPARAGUS 
ment. The following formula, given by Prof. P. H. 
Rolfs, makes a good asparagus fertilizer : 
WitGOten: (os) ey sths Ven Sle ts 1 Den ecm 
PLAS oat a ats. Cars eet bey) ones ci 
Available phosphoric acid . . . 7 3p 
One thousand five hundred pounds of the above 
formula should be applied per acre. When possible 
apply twenty to forty tons of vegetable material, such 
as partially rotted rakings of barnyard manure. 
Where such vegetable matter is procurable, the quan- 
tity of nitrogen may be decreased proportionately. If 
manure is obtainable, allowance should be made for 
the fertilizing elements contained therein. 
An excellent formula for one ton of asparagus fer- 
tilizer, given by Prof. W. F. Massey, consists of : 
200 lbs. nitrate of soda 
700 ‘* cottonseed-meal 
800 ‘‘ acid phosphate (13 per cent.) 
300 ‘‘ muriate of potash 
This will yield 4.9 per cent. ammonia, 6.1 per cent. 
available phosphoric acid, 8.4 per cent. potash. 
The effects of the application of a scientifically 
balanced fertilizer ration upon asparagus is clearly 
illustrated in Fig. 21, which presents a photographic 
reproduction of an experimental plat of the North 
Carolina State Horticultural Society at Southern 
Pines, N. C., fertilized with 
250 lbs. nitrate of soda 
400 ‘‘ acid phosphate 
160 ‘* muriate of potash 
per acre, while Fig. 22 shows a plat of equal size 
which remained unfertilized. 
