27 
years on Field A was 163 pounds of seed cotton; and for three years 
on Field B, 593 pounds; or an average increase per acre for the seven 
years of 348 pounds, worth $11.45 over the cost of fertilizer. 
Lime, L. (Plats 6 3 and 5 3 ). For the four years on Field A the 
lime plat showed an average annual loss of 56 pounds of seed cotton, 
representing a financial loss of $3.15. On field B however, this material 
gave an increase each of the three years, averaging 218 pounds more 
than the unfertilized plat, and a profit of $9.18. As an average of 
these two apparently contradictory results lime gave an average of 62 
pounds representing a profit of $2.16. 
Lime and complete fertilizer, IN’ P K L, (Plats 7 3 and 6 3 ). With the 
exception of the year 1905 on Field B lime in combination with the 
three fertilizer constituents gave a larger yield of cotton than did com¬ 
plete fertilizer without the lime. The average yield for the seven years 
from this treatment was 142 pounds greater than for complete fertilizer 
without lime. The profit, $17.62, is greater than that from any of the 
other fertilizer combinations. 
Taking the experiments as a whole, the average results show that: 
The combination of nitrogen and phosphoric acid gave the smallest 
increase and also the least profit. 
That nitrogen and potash gave an average yield of 209 pounds more 
seed cotton than did the nitrogen and phosphoric acid treatment, with 
a profit of $14.11. 
Phosphoric acid and potash gave a slightly greater yield than nitro¬ 
gen and phosphoric acid, but not nearly as great as nitrogen and potash. 
Nitrogen added to phosphoric acid and potash making a complete 
fertilizer, increased the yield 131 pounds, and gave an additional profit 
of $3.58. 
The results from lime while contradictory on the two fields, show a 
NORFOLK FINE SANDY LOAM—EDGECOMBE TEST FARM. 
Other than Quartz in 
Less Abundant Minerals in 
Remarks 
Silt 
Hi Sand 
Silt 
Nome. 
Orthoclase, weathered 
and fresh, micro- 
cline, epidote, zir¬ 
con, magnetite, 
chlorite, muscovite, 
hornblende 
Orthoclase, micro- 
cline, epidote, 
chlorite, chloritized 
biotite 
Potash accurs as felspars 
mainly, only trace of mus¬ 
covite, and chloritized bio¬ 
tite. Lime is as epidote, 
almost entirely. Very little 
hornblende present. Quartz 
badly worn. 
None. 
Orthoclase, micro- 
cline, epidote, zir¬ 
con, chlorite, mag¬ 
netite diatoms 
Orthoclase, micro- 
cline, epidote, zir¬ 
con, chlorite, mus¬ 
covite, hornblende 
Very little difference between 
soil and subsoil in miner- 
alogical composition. Slight¬ 
ly more micas in subsoil- 
