U ELEMENTS OF FARM PRACTICE 



fungicide to check the blight is commonly used. This 

 saves time, as the combined spray is as easily applied as a 

 single purpose spray, and is quite as effective. For full 

 Darticulars write to your State Experiment Station. 

 Questions: 



1. For what reasons would you prefer fall plowing for potatoes. 



2. Describe a good method of preparing clover sod for potatoes. 



3. How are p)otatoes planted? How cultivated? 

 Arithmetic: 



1. It costs 35c. per acre to disk land. A farmer disks his potato 

 field twice after manuring and before plowing. What must be the 

 increased yield to pay for the extra work of disking twice, if potatoes 

 are worth 35c. per bushel? 



2. It costs 50c. per acre more to plow 6 in. deep than to plow 

 4 in. deep. How much does one get for his extra labor, if land plowed 

 6 in. deep yields 10 bus. more than land plowed only 4 in. deep, if pota- 

 toes are worth 35c. per bu.? 



3. If it costs 50c. per acre to cultivate potatoes, how much must 

 each cultivation increase the yield to pay for the cultivation, if pota- 

 toes are worth 35c. per bushel? 



ROOT CROPS 



Importance.— Root crops, such as mangels, rutabagas, 

 turnips, stock carrots and sugar beets, are grown quite 

 generally as feed for stock. They are especially important 

 on farms not supplied with ensilage. On farms where 

 stock equivalent to ten cows or less is kept, it is seldom 

 practical to use silage. Good stock feeding requires that 

 some sort of succulent feed be provided. Root crops may 

 be grown with the machinery ordinarily found on the farm, 

 and do not require an expensive building for storage. For 

 these reasons it is decidedly practical to grow root crops 

 on farms keeping only a small amount of stock, if the stock 

 is an important factor on the farm. 



Other Uses. — Sugar beets are grown much more exten- 

 sively for the manufacture of sugar than for stock feed. 

 Rutabagas and turnips are grown quite extensively as 

 vegetables for human food. 



Culture. — Root crops require a great deal of hand labor. 



On this account it is important that they be planted on 



very rich land that will produce a heavy yield. Ten tons 



per acre is a common yield. It is more practical to have 



' the soil so rich by manuring it, and in such fine condition 



