oO 
12 STORRS AGRICULTURAL EXPERIMENT STATION. 
SOIL TEST EXPERIMENT BY THE STATION ON COW PEAS. 
This experiment is the fourth in a series of tests planned as a 
rotation soil test experiment, the same fertilizers being used on 
the same plots year after year.* Beginning with 1890 the Crops 
grown on this field have been corn, potatoes, oats and cow peas. 
The plan was to grow scarlet clover in 1893, but the crop failed 
to make a good growth while young, and hence the test with 
clover was abandoned. 
The field slopes gently to the south, but not enough to cause 
serious washing. The soil is a heavy loam, and the subsoil is a 
yellow, compact, clay loam. In 1889 it was noticed that the soil 
seemed to be poorer toward the west side of the field. For this 
reason the field was laid out into two half-acre experiments, the 
order of the plots on the two being reversed, as per diagram. 
ARRANGEMENT OF PLOTS IN STATION EXPERIMENT. 
UNMANURED STRIPS SEPARATE THE PLOTS. 
for fertilizers used on plots, see diagram on opposite page. 




























HAST. 
| ELOU.O; PLOT 
PLOT A. PrOrr ccs 
rT f PLOT 000. 
=a "| PLoT G. 
: PLOT 00. | niet o 
ie | PLor .D: PLOT Te. - 
0 | PLoT E. PrvoTck, 4 
y |- Sec a PLOT 00. ; 
| Tipton Gotan aR Pio C. 
Te Soy at eee PLoT B, 
PLOTUX: | PLOT.Ay 
Tory, ' PLOT o, 
WEST. 
The yields of the duplicate plots in each case are averaged in 
estimating the yield per acre. This helps toward eliminating the 
errors due to irregularities of soil. All of the plots were laid out 
running north and south. 

* For description and results of earlier experiments on this field, see Report of this Station, 
1890, pp. 69-71. 


