... Thus, as an average of triplicate tests each year, the addition of potassium to such land on the University of Illinois experiment field near Manito, Mason county, increased the yield by 20.7 bushels ...
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Results for Manitou across depots, public-domain books and formula indexes.
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WHAT GOES TO MAKE UP PERMANENT FERTILITY · Hopkins, Cyril G. (Cyril George), 1866-1919 · 2003
... Thus, as an average of triplicate tests each year, the addition of potassium to such land on the University of Illinois experiment field near Manito, Mason county, increased the yield by 20.7 bushels ...
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Runchero depot index
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