316 



BOARD OF AGRICULTURE. 



Unfortunately in this experiment the weij^hts of grain and straw 

 were not ohtained separately, only the total weight of crop being 

 given, so that the production of grain on the several plots cannot 

 be stated. Here, as in most other cases, the complete fertilizer was 

 the most ellicient. 



E. P. and A. C. True, So. Litchfield. 



Crop, corn and potatoes. Soil of experimental field well adapted 

 to corn raising. Had received no fertilizer for thirt3-five 3'ears. 



Plot. 



1 



2 



4 

 5 



6 

 7 



8 



9 

 10 



Fertilizer Applied. 



No fertilizer 



Dissolved bone black 



Dissolved bone black. 

 Muriate of potash .. . 



Dissolved bone black.. 

 Muriate of potash ... 

 Sulphate of ammonia. 



Fine ground bone 



No fertilizer 



Dissolved bone black 



Dissolved bone black. 

 Muriate of potash .. . 



Dissolved bone black.. 

 Muriate of potash .. .. 

 Sulphate of ammonia 



Fine ground bone 



o u • 

 c ._ o 

 c «.> 



S ^ b 



So© 



lbs. 



400 



400 

 100 



400 

 100 

 100 



400 



S- - 



^^^ Tubers. 



Yield Per Acre. 



lbs 

 5, '250 



8,400 

 6,825 



bush. 

 87.5 



! 140. 

 113.7 



8,400 ' 140. 



400 



400 

 100 



400 

 100 

 100 



400 



6,055 



Corn, 

 lbs. 

 7,630 



8,990 



14,060 



13,050 



9,870 



100.9 



Grain, ; Fodder, 

 bush. I lbs. 

 57.5 I 3,320 



67.5 



93.7 



93.7 



3,920 



7,030 



5,980 



64. ' 5,070 



The results of the Messrs. True's work are not so valuable as they 

 would have been had all the plots been planted with the same croi^s. 

 Nevertheless, the results show plainly that neither the corn nor pota- 

 toes secured any larger crop from the application of a complete fer- 

 tilizer than from the use of the mixture of bone black and potash 

 salt. 



In the next table the results of the several experimenters are 

 brought together for convenience of reference and comparison. 



