88 CHARLES ANTHONY GOESSMANN 



chloride of ammonia, the latter being an unfavourable 

 form of nitrogen plant-food. The above was not posi- 

 tively demonstrated but only assumed. It may have 

 been the case, however. 



(4) The influence of the weather, particularly the 

 rainfall . . . has been greater than that of the different 

 fertilizers upon the different plats during the same 

 season. It was evident that the lack of moisture played 

 a very important role in the yield of the several crops. 

 This experiment was continued on the above plan 

 through 1897, by Brooks, who drew substantially simi- 

 lar conclusions to the above. Beginning with 1898, it 

 was modified. (Eleventh Report of the Hatch Experi- 

 ment Station, page 67.) 



XTV. Field experiments to compare the effect of barn- 

 yard manure with Canada ashes and mixtures of com- 

 mercial fertilizing materials on farm crops (1888-1894). 



The land for this experiment was situated east of the 

 county road, bounded on the north by * Lovers' Lane,' 

 so-called, and on the east by woods. It was to the east 

 of the meadow used for experiments with grass. Five 

 plats of substantially nine-tenths of an acre each were 

 used, divided by strips 14 feet wide. The land had been 

 in grass previously, but in 1888 was ploughed and fer- 

 tilized with ashes. The only difference in the treatment 

 of the five plats consisted in supplying different forms 

 of plant-food as follows: 



Plat I 10 tons barnyard manure per acre, 



Plat II 1 ton Canada ashes per acre, 



Plat III without fertilizer, 



