134 MAINE STATE COLLEGE 



In every instance duplicate lots produced contradictory results. 

 The first lot of Early Rose gave a greater yield from the trench — 

 the difference being nearly ten bushels of marketable tubers per 

 acre. The second lot reverses these figures so far as the market- 

 able tubers are concerned, but the increased numbers of small 

 tubers makes the total }ield practically the same with the two 

 methods of treatment. T^e Bret lot of Crane's June gave a differ- 

 of thirty-three bushels of marketable tubers per acre in favor 

 of the furrow ; while in the second lot the trench produced at the 

 rate of twelve bushels per acre more than the other. 



In each instance above mentioned, the number of marketable 

 tubers per hill was slightly smaller in the trenches, and the weight 

 of individual tubers was somewhat greater; on the other band, 

 mth one exception the small tubers from the trenches excelled in 

 weight aid Dumber those from the furrows. 



Hebron from the trench was superior to the same variety from 

 the furrow. The number of tubers per hill was the same, but the 

 individual tubers from the trench were so much superior as to be 

 equivalent to an excess of twen r y-nine bushels per acre over the 

 other. 



It will be seen tl facts are in a measure opposed to con- 



clusions concerning the system which have heretofore been published. 

 We would not. however, condemn the method without further trial. 

 It is but just to say. however, that certain parties quoted as obtain- 

 ing specially marked results from the use of the "trench system" 

 have discarded the method in their general practice. 



It is questionable whether the results obtained will 

 justify the extra la'vor involved in practicing the trench system of 

 potato culture. In our trials the past season duplit-ate lots in every 

 instance . . itory results. 



VI — Notes of Spraythg Experiment;. 



Spraying with some solution of copper for protection from the 



ck of the is coming to be looked upon as a necessity 



by many of the more progressive orchardists. During the past 



sons the writer has been engaged in solving some of the 



lent to this work. The results, so far as obtained, 



i detailed in the annual reports of the experiment station.* 



The principal work of the present season was a comparison of 



the; 9s of different mixtures. The failure of certain trees, 



* Report Maine Experiment Station, 1S91, page 112; and 1S92, page 92. 





