187 



feet apart ou poor g'ray sandy s-oil. Four samples were 

 taken from two plots, each sample consisting of the 

 entire growth on an area of four square yards; the 

 roots were obtained by digging and sifting the soil to 

 a depth of six inches, to which stratum all the principal 

 roots were apparently confined. 



Tlrat the samples vrere accurately taken is indicated 

 by the close agreement of the duplicate samples; hence 

 only average results are given beloY>\ The vines were 

 cut, the fallen leaves and leaf stalks collected, and the 

 roots sifted out on September 5. This was 106 days after 

 the date of planting on one plot and 78 days after plant- 

 in"' on the other. 



When harvested the more mature sample was slightly 

 past its prime for hay, as shown by the unduly large 

 amount of fallen leaves, while the other sample was too 

 immature and succulent for easy curing. 



The yields per acre of extremely dry hay according to 

 the weight of the samples taken after being stored in an 

 ofiice for seven months, were 2,269 pounds on the plot 

 cut at a late stage, and 2,037 pounds of the less mature 

 material. These are equivalent to about li and 1^ tons 

 per acre of cowpea hay vdth the usual amount of mois- 

 ture. 



Weights {air-dry) per acre of haij, roots, and stuhhle, 

 and fallen leaves of the cowpea.. 



Air dry material, per acre. 



Ripening 

 stage. 



Blooming 

 stage. 



Vines, including stems, leaves, pods, etc 

 Roots, and stubble about 2 in. long. .. 

 l''allea leaves and leaf stalks 



Total 



Lbs, 



2,269 



714 



1,385 



4,368 



Lbs. 

 2,087 

 502 



804 



3,393 



