CHAPTER IX 



FEETILIZEKS 



It cannot be denied that the use of commercial fertilizers is a 

 source of profit for the farmer, when they are used in the right way. 



ROBERTS. 



80. Why Do We Use Fertilizers? However well a soil may 

 be irrigated or drained, and however intelligently it may 

 be otherwise cared for, some additions must be made to it 



SPREADING MANURE. 

 The manure spreader separates hard masses and distributes them evenly. 



from time to time in the form of fertilizers in order to keep 

 up its producing power. Soils tend to run down. They 

 lose fertility, and become poorer and poorer. Many east- 

 ern farms now selling for twenty or forty dollars an acre 

 would be worth three or four times as much if the soil had 

 been cared for properly. These farms have been treated for 



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