145 



The entire gTowth of velvet beans afforded a yield of 

 corn greater by 11.9 bushels i^er acre, or 76 per cent., 

 than the yield where only the stubble was employed as 

 fertilizer.'- (Alabama Station Bulletin Xo. 111.) 



Residual fertilizing effects of velvet bean vines and 

 stubble on the second crop of corn grown in 1901. 



The same poor, white, sandy hilltop was again 

 planted in corn in 1901 without any nitrogen- 

 ous fertilizer. The yield of corn per acre w^ere 15 

 bushels where velvet bean vines growing in 1899 had 

 been plowed under and only 11.1 bushels where velvet 

 bean stubble had been turned under at the same time. 

 The residual or second-year fertilizing effect of the vines 

 vras greater than that of the stubble by 3.9 bushels per 

 acre, or 33 per cent. 



The total fertilizing value of the vines during the two 



seasons following the date Vvdien they were plowed in 



exceeded that of the stubble to the extent of 59 per cent., 

 or 15.8 bushels of corn per acre. This amount of corn 



would usually be worth more than the net value of the 

 2,800 pounds of velvet bean hay obtained from the 

 stubble plot at considerable expense for curing. 



In this case it was more profitable to plow under vel- 

 vet bean \ines for fertilizer than to harvest them for 

 hay. Judging from other corresponding tests it would 

 have been still more profitable to have grazed cattle on 

 the Aines, either in their green o-r winter-killed condi- 

 tion. 



CowPEA AND Velvet Bean Vines, Immediate Fertiliz- 

 ing Effects on Cotton Grown in 1899. 



In 1898 on a reddish loam soil, abounding in flint 

 stones and underlaid by a red loam subsoil there were 

 grown on adjacent j)lots cowpeas, velvet beans, and cot- 



