F pi d ants nve ~f eet strips of land, which were kept cultivated and 

 - free from weeds. The scheme for treatment was as 

 1 10 follows : 



Plot Treatment. Minerals. 



1 Nitrate of Soda 10 pounds. 



2 Nitrate of Soda 15 pounds. 



3 Check Minerals only. 



4 Nitrate of Soda 20 pounds. 



5 Nitrate of Soda 25 pounds. 



6 Check Minerals only. 



7 Nitrate of Soda 30 pounds. 



8 Nitrate of Soda 35 pounds. 



Since, as already stated, the primary purpose in the 

 planning of the experiment was to have the land seeded 

 down with grass immediately after the oats and peas 

 were removed, the use of the larger quantity of Nitrate 

 was made in order to study the question whether the 

 residual Nitrate from the large application would be of 

 service in hastening the germination and early growth of 

 the grasses that were to be seeded. 



Owing to circumstances which prevented the carry- 

 ing out of this object, the study herewith includes only 

 the effect of the different quantities of Nitrate upon the 

 oat and pea crop. The mineral fertilizer was applied 

 immediately after plowing, and thoroughly harrowed 

 into the soil over the entire area; the Nitrate was next 

 applied, and the seed, at the rate of one and one-half 

 bushels each of oats and peas per acre, broadcasted 

 upon each plot and harrowed in. 



Careful records were kept of the appearance of the 

 plots during the growing season; up to June 26, no ap- 

 parent difference was noticeable in the appearance and 

 size of the plants on the different plots. On July 3 

 there was a noticeable difference in the color, thickness 

 and height of the crops, and measurements showed the 

 plants on plots 1, 2, 3 and 6, to be 10 inches high, and 

 of a medium green color, fairly vigorous. On plots 4 

 and 5, the oats were noticeably taller, while upon plots 

 7 and 8, there was a very marked increase in size and in 

 the appearance of the crop, averaging 14 inches as 

 against 10 inches upon the four plots, and 12 inches 

 upon plots 4 and 5. 



