A Fertility Program for Celery Production


ments designed to compare broadcast applications of fertilizers
with the above procedure the fertilizer was applied broadcast
by hand over the entire plot area and subsequently disked in.


Fig. 2.-A commercial type of plant-setting machine in use on one of the experimental areas.

 Blanching paper was applied seven to 10 days before harvest-
ing. Harvesting was done by trained crews who cut, stripped,
and graded the produce in the field. The total weight of each
grade harvested was taken for each plot, and these results were
calculated to terms of the yield in 70-pound field crates per
acre. All grades, from 3's to xx's, were considered as market-
able celery, and are included in the totals dealt with in the
subsequent discussion. Strippings were removed from the field,
except in Area 3, where they were disked in the plots on which
the plants had grown. This latter method was used with the
1936-37 and 1937-38 crops, and will be mentioned in a later part
of this bulletin.

 STALK SIZE DISTRIBUTION IN RELATION TO YIELD
 While this relationship was studied in the fertility experi-
ments, it is not essential that it be discussed in direct connection
with the various fertilizer combinations because of the nature