320 











TABLE 3 





















- 101 





- 171 









- 175 











MgO 























MgCO 













7 





8 



9 



10 









Hu- 





Hu- 





Hu- 





Hu- 











mus. 



Ash. 



mus. 



■ 



mus. 



Ash. 



mus. 





Soil. 



manure unexposed. . . 



■■ 



0085 



0048 



.0078 



. 0055 



" 







Ma\ 



30 to Feb. 



16 



0064 



- 



.0051 



" 



.0067 



.0087 



" 



' 



Feb. 



16 to April 



13 



.0070 



0090 



.0061 



.0096 



0066 



.0099 



0061 



0103 



April 13 to June 



1 



72 





0058 



. 0093 



0123 



.0062 



0069 



0096 



June 1 to Oct. 1 





.0090 



. 0072 



.0081 



.0083 



0093 



.0087 



? 



.0090 



Oct. 



15 to Nov. 

 •k 



22 

























Che< 



. 0049 



.0097 





No treatment 







TABLE 4. 

 PtR'EXT of Increase or Decrease ix Humus. 



Hen. *heep. Pig. Horse 

 3 4 



'•> 



.20 



.12 .09 



.04 — .06 

 05 — 06 



07 



.02 



30 



.02 



— .10 



— .09: 



.09 



.03 

 .02 

 .05 

 .15 



Steer. Cow. 

 5 6 



43 



.01 

 .01 

 .03 

 -.05 



XH.<»H soluble humus — before ex- 

 posure. Over check. 

 May 30 to Feb. 16. 

 Feb. 16 to April 13. 

 April 13 to June 1. 

 June 1 to Oct. 15. 

 15 to Nov. 22. 



fit » 1 

 456 



443 

 4nl 



1 17! I -I. - , •> 

 28 1 



28 52 

 260 24 v> 



Grams of corn and stalks produced 1915 



produced 1916 



