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FARM AND SCHOOL PROBLEMS. 



A wise system of cropping will make use of all the factors 

 that are essential to the maintenance of soil fertility. 



Applying some of the approved practices of scientific agricul- 

 ture to an 8o-acre farm which is about the average size in some 

 of the Middle states, we would have something similar to the 

 following in a five-year rotation as shown by the following 

 diagram : 



FIG. 1. 

 This farm in a high state of fertility will produce : 



2,000 bushels of corn. 

 40 tons of hay. 

 600 bushels of oats. 

 300 bushels of wheat. 



This farm will afford from 10 to 20 acres of pasture annually 

 for live stock by carrying on the following plan of rotation: 



1st year Pasture 



2nd year Corn . 



3rd year Oats 



tth year Wheat 



5th year Meadow 



PROBLEM. 

 Based on crops in Fig. 1. 



1. From the facts stated above, find the average production per acre 

 of each of the crops named. 



2. What is the total value of the crops given above at the present 

 market price of each, if the hay is sold as timothy and clover mixed? 



3. Make an estimate of the fertility value removed from the farm 

 by the sale of these crops. 



