METHODS OF APPLYING MANURE. 



57 



calculation was made on the basis of the average for the five pairs of 

 plots N and S, and the area for which results are computed is 1 acre. 

 The excess cost of handhng manure where it was piled when hauled out 

 and spread in the spring has been estimated at $2 per acre where the 

 work is done upon a large scale, for on such scale the manure spreader 

 would be used in appljdng the manure from the heaps in the spring, 

 whereas conditions when manure is hauled out and applied during the 

 winter are by no means alvvaj's such in our climate as to make the use 

 of the manure spreader practicable. It is believed, therefore, that the 

 figure taken — $2 per acre — is sufficient to represent the difference in 

 cost under conditions existing on farms of sufl&cient size to justify the 

 use of the spreader. 



The same values have been used in the calculations throughout the 

 entire period covered by the two tables, although prices during the past 

 four or five years have advanced materialh', so that the figures taken as 

 applied to these years are considerably too low. The reader will perhaps 

 at once think that so also must be the figure representing the difference 

 in the cost of handling the manure; but in this connection it is important 

 to remember that during the past eight j^ears no manure has been applied 

 to any of the plots, so that the question of the excess cost of handling 

 does not affect the results as presented in Table XII. 



T.A.BLE XI. — Calculated Results per Acre for the Period of Annual 

 Apjjlication of Manure. 



Crop. 



Millet 



Soy beans, 



Corn 



Mixed grass and clover, 



Corn (ensilage), 



Corn and soy beans (en- 

 silage). 



Total, , 



Crop Values, 



Yearly 

 Average. Dir- 



FERENCE 



IN Favor of — 



Winter 



(N). 



$1 20 



Spring 



(S). 



$7 83 



3 97 



66 



2 05 



Cost of 

 Appli- 

 cation OF 

 Manure 



Dif- 

 ference 

 IN Favor 



OF — 



Winter 



(N). 



$2 00 

 2 00 

 2 00 

 2 00 

 2 00 

 2 00 



Total Yearly 



Average. 



Difference in 



Favor of — 



Winter 



(N). 



$3 20 



1 34 



2 25 



Spring 



(S). 



S5 S3 



1 97 



05 



Num- 

 ber of 

 Years. 



TOT.U. 



Difference in 

 Favor of — 



Winter 



(N). 



$3 20 



4 70' 



2 25 



$10 15 



Spring 



(S). 



$5 83 



5 91 



05 



$11 79 



Balance in favor of spring, SI -64. 

 Average for 1 year, $0 14. 



1 No manure applied in 1907; cost of applying deducted. 



