20 MAINE AGRICUIvTURAL EXPERIMENT STATION. I905. 



izers were liberally used. The tops kept greener in color dur- 

 ing the last half of the growing season with the home mixture. 

 September i, there was a severe frost all over Northern Maine. 

 The late potatoes grown upon the home mixture had greener 

 and more succulent vines than those upon the standard fertilizers 

 and in consequence were damaged much more by the frost. In 

 fact, the vines of the late planted potatoes on the home mixed 

 goods were practically killed at this time, while the same varie- 

 ties planted at the same time upon the standard potato fertilizer 

 continued to grow after this frost. As a result, the potatoes 

 were larger and better ripened with these than upon the home 

 mixed plots. For quick maturing, the home mixed goods 

 apparently carried too much slowly available nitrogen and too 

 little available phosphoric acid — a condition that can be readily 

 remedied in a formula. This is discussed on pages 140 to 143 

 of Bulletin 107 of this Station. 



