181 



STATE AGRICULTURAL COLLEGE BULLETINS. 



potatoes is, however, much dependent upon circumstances, such as con- 

 dition of soil and amounts of rain fail." "Despite the fact that whole 

 potatoes give more small potatoes than one and two eye cuttings, it is also 

 true that they give more large potatoes."' 



UTAH. 



Bulletin No. 5, Utah Station, March, 1891. 



"The ground on which the potatoes were planted is a sandy loam and 

 newly broken. Owing to slight inequalities in the soil the results are 

 only approximate. 



"Planting commenced on May 8, and all the plants in any one experi- 

 ment were planted the same day. 



"The plats contained 1-20 of an acre each. The rows were all three feet 

 apart and the potatoes were one foot apart in the row." 



Table LT. 



Seed. 



Two eyes 



Snarters 

 alf potato 

 Whole potato 



Net 



large 



above 



seed. 



60 



6S 



66 



23 



"It will be seen that the yield increased as the size of the pieces planted 

 increased, not, however, in exact ratio. It will also be noticed that the 

 rate of increase of large potatoes was less than that of the small ones. 

 Especially is this noticeable in the change from half potato to whole 

 potato seed; in this instance there is an actual decrease in the amount of 

 large jDotatoes of 16 per cent, while the increase of small potatoes is 81 per 

 cent, and the total increase is only three per cent. 



"The increase of the plat planted to potatoes cut in quarters over the 

 plat planted to two eye pieces is, large potatoes 12 per cent; small potatoes 

 26 per cent, total increase 18 per cent." 



Note by J. W. Sanborn, same bulletin. — "To the above data furnished by 

 Prof. Richmond, I will add the average of seven year's experiment work on 

 college farms of two states of the east. These results are in accord with 

 unrecorded results of a trial on the private farm of the writer, and with 

 many recorded results of investigators who have conducted trials at several 

 experiment stations. 



"There seems to be little occasion to doubt that light seeding for the 

 potato crop is followed by a far smaller crop than the use of large seed 

 would give." 



