ROTATION OF CROPS. 181 



Seven Stages of Cropping. 



A. No method. No system of farming. 



B. Corn Oats Wheat Clover. 



C. Corn Oats Wheat. Clover, Manure. 



D. Corn Oats Wheat. Clover, Manure, Lime. 



E. Corn Oats Wheat. Clover, Manure, Lime, Fertilizer. 



F. Corn Oats Wheat. Clover, Manure, Lime, Fertilizer, 

 Cover Crops. 



G. Corn Oats Wheat. Clover, Alfalfa, Soybeans, Manure. 

 Lime, Fertilizer, Cover Crops. 



The same steps in progression may be shown by classifying 

 farmers according to the amount of tools they use. 



Have the pupils classify farmers according to their farm 

 equipment to test their observation of farm practices. 



The amount and kind of stock raised on the farm will also 

 serve to demonstrate the difference between the poorer and better 

 classes of farmers. 



Kinds of Farms. 



The Terry rotation was used by T. B. Terry in Ohio. It 

 was found successful in building up a run-down clay farm. 

 The rotation consists of Clover, Potatoes, and Wheat. 



One of the noted systems of England is the Norfolk rotation. 

 It consists of a four-course rotation Turnips, Barley, Clover, 

 and Wheat. 



Labor and market conditions where we have large farms in 

 the corn belt states would make it unprofitable to raise turnips 

 or potatoes in a rotation, therefore the Terry and Norfolk ro- 

 tations can only be profitably adopted where farming is carried 

 on in a small way. 



Farms are divided into various classes according to the 

 chief source of income. When more than 50 per cent of the in- 

 come from a farm comes from the sale of fruit it is known as a 

 fruit farm ; if more than 50 per cent of the income from a farm 

 arises from the dairy it is called a dairy farm; if more than 

 50 per cent comes from the sale of stock, it is a stock farm ; thus 

 there are various kinds of farms. 



