PLAN OF POTATO STORAGE CELLAR
C. H. JEFFERSON, Agricultural Engineering
H. C. MOORE, Farm Crops
Michigan potato growers suffer heavy financial losses every year as a result of
inadequate storage facilities. Approximately twenty million bushels of potatoes are stored
in this state for a period of two months or longer each year.
Fig. l.-A permanent storage cellar built in side hill.
Some of the most common storage losses occur from insufficient insulation of
storage walls and ceilings, permitting the potatoes to become chilled or frosted. Potatoes
exposed to frost are not satisfactory for food or seed purposes. They break down during
transit and one or two frosted potatoes in a sack may spoil the appearance of the entire
sack of potatoes. A uniform temperature of 36 to 40 Fahrenheit should be maintained
during the storage period.
MICHIGAN STATE COLLEGE
Of Agriculture and Applied Science
R. J. Baldwin, Director
Printed and distributed in furtherance of the purposes of the cooperative agricultural extension work provided for in the
Act of Congress May 8, 1914, Michigan State College of Agriculture and Applied Science and.Department of
Insufficient ventilation is another common cause of heavy losses in storage. Potatoes
receiving insufficient air may break down with button rot or black heart. These injuries
lower the quality of potatoes for seed as well as for table stock. Furthermore, insufficient
ventilation provides ideal conditions for the development of molds and fungous diseases
that often occur in storage. By means of false floors, floor flues, and ventilated bin
partitions, air can be distributed through the storage house so that no potatoes are farther
than five or six feet from a supply of fresh air.
The storage house shown here has been designed for the grower of certified seed who
stores his own seed, or for the grower of table stock who stores at least a part of his crop
at home. It has a capacity of approximately 3,000 bu