20 



BULLETIN 412 

 TABLE 10. USE OF FERTILIZER ON PEAS IN 1920 



TABLE ii. KINDS AND QUANTITIES OF FERTILIZER USED ON THE 199 FARMS 

 USING FERTILIZER ON PEAS IN 1920 



* The numbers used to designate the kinds of fertilizer refer to the percentages of the three const 

 nitrogen, phosphoric acid, and potash, in the fertilizer: for example, a 1-8-2 fertilizer contains i per cent 

 of nitrogen (N), 8 per cent of phosphoric acid (PzOt), and 2 per cent of potash (KtO). 



t Some of the 199 farms used more than one kind of fertilizer. 



