92 BOARD OF AGRICULTURE. [J'lH., 



limed section, the clover being at the extreme left. The two 

 piles at the right are from the unlimed section, the one on the 

 extreme right being the weeds. Where lime was vised, the 

 crop was chiefly clover, but upon the unlimed land the weeds 

 weighed nearly as much as the clover. 







V,"- ■^- JJ¥^ "^'tzJ^Jfet^J 



^i&Mm^i^ 



At Moosup Valley the yield of Mangel Wurzels upon the 

 unlimed land was at the rate of but three tons per acre, but 

 where lime was used it amounted to twenty and three-fourths 

 tons per acre. The view shows the exact relation O'f the two 

 crops. The lot representing the unlimed area is seen at the 

 right. This was pasture land where chemical manures had 

 possibly never been used. 



These and many other similar experiments conducted in 

 different parts of Rhode Island were sufficient to convince the 

 most skeptical that the need of lime was more or less general 

 in every portion of the State. 



INFLUENCE OF LIMING UPON THE POTATO SCAB. 



While digging the potatoes grown in the previously men- 

 tioned series of experiments upon the four plats, it was noticed 

 that those grown upon the limed plats were badly scabbed 

 while the others were not. Professor Thaxter at your own 

 Station in New Haven had shown previously that the scab was 

 due to a fungus which grows upon the surface of the tubers. 

 He had also experimented in a limited way concerning the 

 effect of various substances in promoting scab. These latter 

 experiments were brief and necessarily inconclusive, since, for 

 example, it was noticed that plaster and cement exerted " a 



