AGRICULTURE, &o, c
... ON THE ADAPTATION OF DIFFERENT MA- NURES TO DJWFERENT CRops.-The records of nearly 20 years of experiments at Rothamsted have not afforded a single instance in which the application of ammoniacal salts to a cereal crop has failed to give a greater or less increase of produce. This is the case even where there has been a very unusual exhaustion of mineral consti- tuents; and this effect of ...