Mar. 4, 1918 



Corn-Stover Silage 



593 



Table II. — FeTtnentaiion temperatures of stover silage 



Date. 



Apr, 4 



5 

 6 



7 

 8 



9 

 10 

 II 

 12 

 13 

 14 

 15 

 16 



17 

 18 



19 

 20 

 21 



22 

 23 

 24 

 25 

 26 

 27 

 28 

 May I, 

 2, 



4 



6 



8 



16 



22 



31 

 June 16. 



Temperature CF.). 



Bulb I. Bulb 2 



42. o 



42.5 

 46.5 



46. 5 

 47.0 



47-5 

 49.0 

 49.0 



49-5 

 50.0 



50-5 

 50.0 

 50.0 

 50.0 

 50.0 

 50.0 

 50.0 

 50. o 

 49- 5 

 49-5 

 50.0 

 50. o 

 49-5 

 49-5 

 50. o 



49-5 

 49.0 

 50.0 

 50.0 

 50.0 

 50-5 

 50-5 

 51.0 

 52.0 



42 

 49. 



SC- 

 52- 

 54- 

 54- 

 54- 

 54 

 56- 

 56. 

 56. 

 56. 

 56- 

 56. 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 57- 

 58- 

 58- 

 58. 

 58. 

 58. 

 58. 

 58. 



Bulb 3. 



Bulb 4. 



46. 



47. 

 48. 

 49. 

 SO' 



SI' 



52' 

 52' 



55' 



55' 



55' 



55' 



56. 



56.0 



56.0 



55- o 

 56. o 



57- o 

 57- o 

 57-0 

 57-5 

 57-5 

 57 



58. 5 



59- 



59- 



59- 



59- 



59- 



59- 



61. 



63- 



Atmos- 

 phere. 



33' 

 42. 



43' 

 46, 



33 



33 



37 



42 



48.0 



58.0 



51.0 



49.0 



50. o 



52.0 



49-5 

 46.0 



55-0 

 49 

 49 

 41, 



47 

 47 

 48, 



48. 5 

 47.0 

 66.5 

 63-5 

 53-5 

 60.5 



65-5 

 65.0 



55- o 

 64. o 



63-5 



Recent investigations have furnished abundant proof that high tem- 

 peratures are not essential in silage preservation, and, in fact, do not 

 occur except at the surface, which undergoes an aerobic decomposition. 

 Bechdel (3) has recorded an instance in which the maximum temperature 

 attained in the center of a concrete silo during the curing period was only 

 60° F. As has been shown by Eckles, Oshel, and Magruder (6), the 

 atmospheric temperature at time of filling influences greatly the tem- 

 perature attained during the fermentation of the silage. 



Table II shows that the temperature at the start was 42° F. and gradu- 

 ally increased until the readings were discontinued. The maximum 

 temperature attained was 63° F. in the case of bulb 4; but bulb i, which 

 was buried to a depth slightly below the surface of the surrounding 

 soil, showed a maximum temperature of only 52° F. An examination 

 of the column giving the atmospheric temperature during this period 

 suggests that the continued increase in the silage temperature during 

 the latter part of the time may be accounted for by a similar increase in 



