CULTIVATION OF THE BEET. 



'33 



The following also shows the effect of the Stassfurt 

 fertilizer in other parts of Prussia : 



Applied at the rate of 533 pounds to an acre, it 

 increased the quantity of sugar in the juice of the 

 beets over those raised without the manure from 12.82 

 to 14.42 per cent. In another instance the increase 

 was from 13.6 to 14.8 per cent. 



The best method of employing it seemed to be with 

 bone-dust or phosphate of lime, in the proportions of 

 one of the former to three of either of the latter. 

 Guano and Stassfurt manure, with bone-dust or phos- 

 phate of lime, in the proportions of one each of the 

 former to three of either of the latter, have been ap- 

 plied with excellent results. 



Stable manure alone will not supply the materials 

 taken from the soil by crops. For this purpose arti- 

 ficial fertilizers are required. Chemistry not only 

 teaches us of what materials these fertilizers should 

 be composed, but also provides them. According to 

 Hall and Ogston, English chemists, the amount of 



