A THIRTY-YEAR FERTILIZER TEST. 



137 



Table 6. — Relationship hetireen Increase from Fertilizer Nitrogen, Place 

 in Rotation, and Weather Conditions — Continued. 



Corn, Yields per Acre, South Soil Test — Concluded. 

 II. Second Year after Lrgume or Sod. 



III. Third Year after Legume or Sod. 



