

Alfalfa. 229 



Plat No. 745. Stable manure and soil as above. 



746. Seed inoculated by cultures from U. S. Department of 



Agriculture. 



747. Nothing. 



748. Manure and inoculated seed. 



749. Commercial fertilizer, 500 pounds per acre 4-12-4 



goods, 



750. Nothing. 



The alfalfa came up promptly and evenly over the several plats and 

 for some time little difference could be observed, — a satisfactory and even 

 stand having been secured. Toward the latter part of June those plats 

 receiving manure or fertilizer began to show to better advantage, and at 

 about the same time it became evident that the north half of all the plats 

 where lime had been applied were making better growth than the south 

 half. 



On July 12, areas of one-half square yard, of as nearly average 

 quality as possible, were selected from each end of each plat and all the 

 plants in these areas taken up and critically studied to ascertain just what 

 development was being made on each. The data secured included the 

 number of alfalfa plants on the area, the total fresh weight of these, the 

 length of each plant and the number of leaves it bore, the presence or 

 absence of nodules on the roots, the number of weeds and the kinds and 

 the fresh weight of the weeds. From this data the average weight of 

 the alfalfa plants, their average length and the average number of leaves 

 were computed. Table No. i gives a summary of this study: 



