The Bulletin 7 



(2) broadcast before planting; and (3) divided into two equal parts, 

 one-half being applied in the drill before planting and the other half 

 as a side dressing about July 1, the broadcast application yielded 39 

 per cent less increase in grain than did applying the same fertilizer in 

 the drill at planting. Dividing the fertilizer application, applying 

 one-half at planting and the other half about July 1 was used on an 

 average at a loss of $1.80 per acre, counting both com and stover. 



10. Taking the conclusions under 8 and 9 together, it is seen that 

 where 300 pounds of fertilizer is used to the acre on this character of 

 soil, the most economical method of application is to have all the car- 

 riers of potash and phosphoric acid with one-half of the nitrogen ^ as 

 blood applied in the drill at planting, and then apply the remaining 

 half as blood about July 1 along side the corn rows. 



11. Our analyses of the various soils of the State indicate that 

 these results will apply to many of the sandy and fine sandy (JSTorfolk) 

 loams of the upper Coastal Plain section of the State. 



1. FERTILIZEE EXPERIMENTS WITH CORN ON THE 

 SANDY LOAM SOILS OF THE COASTAL PLAIN. 



This is the seventh of a series of bulletins giving the results of ex- 

 periments to determine the fertilizer or plant food needs of different 

 soil types of the State. The previous reports give : 



1. Results of Fertilizer and Variety Experiments with Cow Peas on 

 Piedmont Red Clay Loam Soil (June, 1910). 



2. Results of Fertilizer Experiments vnth Cotton on Piedmont Red 

 Clay Loam Soil: and Varieties, Culture and Fertilization of Cotton 

 on Piedmont Red Clay Loam, Red Clay and Valley Soils (August, 

 1910). 



3. Results of Fertilizer Experiments with Corn on Piedmont Red 

 Clay Loam; and Variety, Culture and Fertilization of Corn on Pied- 

 mont Red Clay Loam, Red Clay and Valley Soils (September, 1910). 



4. Fertilizer Experiments with Cotton on Sandy Loam Soils (Nor- 

 folk Sandy Loam) of the Coastal Plain ; and Variety, Culture and Fer- 

 tilization of Cotton on Sandy Loam Soils (April, 1914). 



5. Fertilizer Experiments with Cotton on Piedmont Cecil Sandy 

 Loam Soil; and Varieties, Culture and Fertilization of Cotton on Pied- 

 mont Cecil Sandy Loam and Red Clay Soils (April, 1914). 



6. Fertilizer Experiments with Corn on Piedmont Cecil Sandy 

 Loam Soils; and Varieties, Culture and Fertilization of Corn on Pied- 

 mont Cecil Sandy Loam and Red Clay Soils (April, 1915). 



More attention is now being paid to the production of corn than ever 

 before in the history of the State and fertilizers are used somewhat 

 more generally on this crop than in former years. 



