7 
Location of Experimental Fields. 
Field experiments are being conducted on four of the more important 
of these mountain soils. The data therefore secured and published can 
be applied to practically all of this section. 
The mountain work is located at the following places: 
1. The Buncombe Test Farm, about midway between Black Mountain 
and Swannanoa in Buncombe County. This is one of six test fields 
owned and operated by the State Department of Agriculture. 
2. The Hendersonville field, one mile northeast of the railroad sta¬ 
tion at Hendersonville, Henderson County, on the farm of B. W. 
Marshall. 
3. The Blantyre field, one mile northeast of Blantyre, on the farm 
of Charles Baldwin. These last two fields are in easy walking distance 
from stations of Hendersonville and Black Mountain or Swannanoa. 
Results on the Blantyre Field. 5 
The Blantyre Field is typical Porter’s clay, and is representative of 
much of the heavy upland soils of the mountains. It consists of twelve 
one-twentieth acre plats. This field was established in the spring of 
1910. Corn was grown on all the plats, it being the first crop of the 
following three-year rotation. 
First Year.—Corn. 
Second Year.—Wheat. 
Third Year.—Red clover. 
The following materials were used as carriers of the different ele¬ 
ments of plant food: 
Dried blood for nitrogen. 
Acid phosphate for phosphoric acid. 
Potassium sulphate for potash. 
Rock lime for lime. 
The rate of application is based on the amount of the various plant 
foods known to be removed by maximum crops. In the case of corn 
100 bushels w T as taken as a maximum yield. This may seem high 
to some, but many such yields are yearly obtained in the State and 
over twice this amount has been produced on a measured acre. Even 
on this very much depleted field, we obtained a yield of nearly sixty 
bushels by the use of commercial fertilizers alone. In order to secure 
the required amount of plant food it was necessary to apply the fol¬ 
lowing amounts of materials: 
Dried Blood.—1,062 lbs. 
Acid Phosphate.—350 lbs. 
Sulphate of Potash.—170 lbs. 
Lime was applied at the rate of 1,000 pounds of rock lime per acre. 
The following table gives the treatment and the yield of each of the 
plats: 
5 See N. C. Dept. Agr. Bui., Vol. 32, No. 5, for details of field results for Mountain Section used 
his Bulletin. 
