The 1963 Iowa Corn Yield Test


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"The results of the Iowa Corn Yield Test are published as an aid to Iowa farmers in selecting corn hybrids adapted to their farms. This is the forty-fourth consecutive year for the Iowa Corn Yield Test sine its beginning in 1920 and the fourth consecutive year in which a picker-shelter has been used to harvest a majority of the test fields. Additional data are presented this year for high plant populations in tables 1, 6 and 12. The maturity trials at Ankeny and Kanawha include 2-, 3- and 4-year information for the first time. Soil fertility information of test fields is included for 1563." -- p. 3







1965 Iowa Corn Yield Test


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Maiz


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The 1939 Iowa Corn Yield Test


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"The Concord grape and grapes of this type and hardiness which are the grapes most widely grown in Iowa, require yearly pruning if the grower wishes to obtain heavy annual yields of large-sized, high quality fruit. The illustration on the cover of this bulletin indicates the development and distribution of the fruit which may be expected on correctly pruned vines." -- p. [227]




1967 Iowa Corn Yield Test


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