144 



STORRS AGRICULTURAL EXPERIMENT STATION. 



Table 73. 

 soil test with fertilizers on soy beans. 



By the Station, vStorrs, 1901. 



may have been due in part to the wet season, which would 

 have favored the leaching awa}^ of the nitrates where the ni- 

 trate of soda was used, while the slower acting organic nitrogen 

 in the form of manure would have been made available gradu- 

 ally throughout the season. Probabl}', also, the soil on plot 

 G, on which only the chemical fertilizers have been applied for 

 so many years, is lacking in beneficial organic matters (humus, 

 etc.), which would be present in the soil on which the stable 

 manure was used. 



Average yields of crops gro7vn in soil tests. — By repeating the 

 rotation in this experiment through a series of years the in- 

 equalities of season are partially eliminated; thus the results 

 would naturally be expected to be of increasing value as time 

 goes on. The average results in yields of crops are shown in 

 the following table. 



