550 



STATE BOARD OP AORIOULTURB. 



TREPARATION OP SEED BED. 



The seed bed for soy beans should be prepared in the same manner as 

 for corn or other cultivated crops. If not plowed in the fall, the ground 

 should be plowed as early in the spring as possible and harrowed at fre- 

 quent intervals until planting time. On light sandy soils or extremely 

 heavy soils spring plowing is preferable, while both fall and spring plow- 

 ing is satisfactory on well-drained clay loams, loams, and sandy loam 

 soils. If the field is foul with weeds fall plowing followed by early spring 

 cultivation is advisable especially if the soy beans are to be sown in 

 drill rows seven inches apart and not cultivated. 



TIME OF PLANTING. 



As a rule the best time to plant soy beans is immediately after corn- 

 planting time. From May 20 to June 15 is usually satisfactory for either 

 hay or seed. For green manuring, plantings as late as July 1st can be 



Soybean root system showing nodules. 



