84 BOARD Ol' AGRICULTURE. [J'ln., 



Serradella, which is sown with spring grains in Germany, 

 to serve later in the season as a sheep feed, and later as a soil 

 renovator, thrives well upon very acid soil, in which respect 

 it differs widely from most, if not all, of the clovers, the san- 

 foin, lentil, vetch, pea, and certain other legumes. The two 

 lots at the left, grown by the aid of sulphate of ammonia, were 

 apparently as good as the other two, grown with nitrate of 

 soda. In fact, liming heavily just before the crop is grown, 

 though helpful to clover, is injurious to serradella. 



The soy bean and southern cow pea are two other legumes 

 which should follow in the rotation, preferably three or more 

 years after liming, though the soy bean seems to need the long 

 interval less than the cow pea. 



The onion does not thrive upon a very acid soil, a fact in 

 full accord with the general idea that wood ashes, which con- 

 tain over 30 per cent, of lime, make a good manure for this crop. 

 Where sulphate of ammonia was used on the unlimed soil only 

 two or three small onion„ resulted. In the case of the two lots 

 at the right, from the limed and unlimed plats which received 

 nitrate of soda, the yield without lime was 24 pounds and with 

 lime, 44.3 pounds. These results throw satisfactory light upon 

 the former inability of certain farmers in Massachusetts to 

 grow onions, especially where brands of commercial fertilizers 

 had been used which were acid instead of basic in character. 



In the case of the flax the products of the limed plats show 

 little increase from liming. Flax is, therefore, well adapted to 

 acid soil. 



In the case of the chicory little difference in yields resulted ; 

 it is evident that chicory will thrive well even upon very acid 

 unlimed soil. 



In the case of the broom corn the results with sulphate of 

 ammonia are shown at the left. The second lot from the left and 

 the one at the extreme right were from the limed plats. 

 Broom corn is, therefore, helped by lime. 



The carnation pink can thrive upon quite acid soil. Liming 

 was nevertheless beneficial in both instances. 



Crimson clover can thrive fairly well upon soil whicli shows 

 considerable acidity, yet upon very acid land liming proved 

 absolutely essential to its success. The two large piles are 

 from the two limed plats. Upon the unlimed plat receiving 

 sulphate of ammonia, it practically failed. 



