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Bulletin P

Volume 5

Number 110
February 1951
The 1950 Iowa corn yield test

Number 111
December 1951
Alfalfa varieties for Iowa

Number 112
February 1952
The 1951 Iowa corn yield test

Number 113
February 1952
Pig production feeding and management of the brood sow and litter

Number 114
July 1952
Nitrogen fertilizers for corn

Number 115
February 1953
The 1952 Iowa corn yield test