A corn field in the spring, after the 

 stock have fed and trampled through it 

 all winter. This is about the condition 

 ground is in when the farmer starts to 

 sow his oats or plow for another crop 

 of corn 



The cornstalk field after a thorough 

 disking, showing the stalks cut in small 

 pieces and the mulch of earth which 

 prevents moisture from escaping 



The field shown in the above picture 

 plowed. Observe that the cornstalks are 

 only half buried, and that the roots and 

 stalks form air spaces which prevent the 

 furrowed slice from coming in compact 

 union with the sub-surface 



Field showing the above disked corn- 

 stalk ground plowed. Note the disked 

 surface and that the short lengths of 

 stalks do not interfere with the com- 

 pact union of the furrowed slice with 

 the sub-surface 



