VALUABLE FERTILIZING ELEMENTS. 



133 



and eventually will become exhausted or mined out. How to put 

 them back at the least expense is the problem confronting many 

 sections of this country today, and it is not alone for the benefit 

 of future generations; it has a, vital bearing on our own crop 

 yields. 



The soil is the farmer's bank and the fertility of that soil is 

 his capital. Many a farmer finding it impossible to "break na- 



^ftlC'A. DAIRY AND MIXED FARMING (160 ACRES) 

 PRODUCED ON FARM .RETURNED TO LAMP 



GRAIN AND HAY FARMING {160 ACRES} 

 PRODUCED ON FARM RETURNED TO LAND 



Milk BDd Cheess 



Clover 

 Alfalfa < 



PLANT FOOD 

 PRODUCED 



- M-niTROGErf-^RA- PHOSPHORIC ACIO-P-POTASH 



PRODUCED RETURnED 



MOTHING- 



T PrAL-IJ,JOQIbj . T0TAL-l6,A0Oll»a . TOTAL-I3.JOOI1>5 



Fig. 50. — Comparison of years' results of grain and hay farming 

 vs. stock, dairy and mixed farming. — Courtesy Family Herald 

 and Weekly Star, Montreal. 



ture's bank" has practiced farming methods that have meant 

 a continual draining, year after year, of his capital— fertility — 

 failing the while to understand the constantly smaller yields of 

 the particular crops grown. This is the usual result of exclu- 

 sive grain and hay farming and is graphically shown in the ac- 

 companying chart. Fig. 50. The chart also illustrates the results 

 of stock, dairy and mixed farming, where most of the crops are 

 grown for stock and manufactured into finished products such as 

 milk, cheese and beef, and where the fertility is returned to the 



