Fertilizer and Seeding Experiments with Root Crops. 423 



yields which apparently would have been obtained had the soil been 

 uniform are given in the first column of Table II. This correction, 

 however, gives us a means of comparing the yield of any given plat only 

 with its preceding check plat. If we wish to compare plats in different 

 parts of the field with each other we must reduce them to a common 

 basis, i.e., to such a basis that they can be compared with a common 

 standard which may be one of the check plats or, in fact, any number 

 we may choose provided the original ratios are preserved. The corrected 

 yields, using the first check plat as a basis, are given in the last column 

 of Table II. 



TABLE II 



Showing Apparent Yields, Per Cent of Increase or Decrease Over Checks 



AND Corrected Yields 



Discussion of results 



Home grown vs. commercial seed. — No difference could be detected 

 in the germinating power of the seed from the two sources. For a 

 few days after the plants appeared above the surface of the ground 



