ExPijRiMiSNTs IN bre;e;ding swe;e;t corn. 301 



The following points may be briefly noted : 



1. When commercial fertilizer was applied at the rate of 

 900 pounds per acre in addition to a good coating of manure 

 the yield was increased 21 bushels per acre over the yield of the 

 plot to which manure alone was applied. At the current price 

 of $4.00 per bushel for sweet corn seed the return from the 

 application of less than one-half ton of fertilizer would have 

 been about $84.00. 



2. When no fertilizer was used, corn grown on nubbins too 

 poor for seed was about 14 per cent, more than in the fertilized 

 plot. Further the quality of the seed ears from the unfertilized 

 plot was inferior to that of the ears from the fertilized plot. 



Results of Experiment C. 



The corn in each of these plots germinated well and gave an 

 excellent, even stand. The following brief extract from our 

 notes on these plots will make clear their general course of 

 development. On June 19, 1909, there was a good even stand 

 with no hills missing. There was no observable difference 

 between the plots in any respect. On July 12, 1909, there was 

 no apparent difference as to earliness. Many plants in both 

 plots were in tassel. There was, however, a difference in the 

 general appearance of the corn. Plot IV A had a lighter color, 

 narrower leaves and the growth was not so rank as in IV B. 

 On August 28, 1909, plot IV B still showed a ranker growth 

 and the ears appeared longer than those in plot IV A. The 

 latter plot averaged to have more ears to the hill and the ears 

 were of good shape, but rather short. In these particulars the 

 plots resembled their parent rows (No. 131 and No. 133) of the 

 previous season. At this time there was a very slight difference 

 in earliness in favor of plot IV A. This difference was very 

 small. It was not nearly so striking as it had been 

 the year before between rows 131 and 133. This may be 

 accounted for partly by the intermingling of the pollen from 

 these two rows in 1908. But it does not seem probable that this 

 had very much to do with it because the two plots showed such 

 characteristic differences in other respects as in the manner of 

 growth, width of leaves, etc. It is a very interesting fact that 

 the selection of a random sample of seed from the earliest and 



