- i 9 8 - 



the character of the roots altered and the grain from "soft" or 

 "starchy" changed into "hard" or "glutinous" wheat. 



The materials added to the soil in this experiments were: 



1) Lime and magnesia. 



2) Carbonate of magnesia. 



3) Sulphate of magnesia. 



4) Dolomite finely ground. 



5) Lime from dolomite. 



Wheat was sown in November, and came up well in all the 

 sets. The results are given in the following table. 



N,B. The soil after mixing containing in each case CaO 0.80 / . MgO 0.40 / . 



Very striking were the results produced on the grain. The 

 wheat from the untreated and from the ground dolomite sets was 

 found to be almost or entirely "starchy" in character, whilst in 

 every other case where there had been a marked increase in the 

 crop, the grain was decidedly glutinous. 



Analyses of the grain gave the following percentages of nitrogen. 



Nitrogen in grain 

 per cent. 



No treatment 1.19 



Lime and magnesia 1.58 



Carbonate of magnesia 1.33 



