FIELD EXPERIMENTS. 37 



Soy bean A was a variety imported from Manchuria and 

 supposed to carry an oil of high oxidizing properties. This 

 variety was successfully grown in several states in 1912, and 

 that year they found marked differences between the percent- 

 ages of oil in beans grown in New Jersey and in Kentucky. 

 The bean in North Dakota was practically the same as that in 

 Kentucky. Variety 1002 was an American type which was 

 stated not to mature as quickly as A. No description was 

 furnished with Soy Bean 302, the other variety. They were 

 all tested for germination and found to germinate well. 



The soil in which they were grown was a medium sandy 

 loam in excellent heart and tilth. It was prepared by plowing 

 and harrowing and the application of a barrel of soil furnished 

 by the Massachusetts Agricultural Experiment Station from a 

 field where soy beans with the root nodules had been success- 

 fully grown the preceding year. This inoculation proved suc- 

 cessful for all the plants examined were found to bear root 

 nodudes in abundance. There were also put on 500 

 pounds of a high grade fertilizer carrying 4 per cent nitrogen, 

 8 per cent available phosphoric acid and 7 per cent potash. It 

 is probable that a fertilizer carrying much less nitrogen could 

 have been equally as well used. As it was desired to give the 

 plants every opportimity for growth a fertilizer carr3dng suffi- 

 cient nitrogen to mature the crop was applied. They were 

 sown in drills June 7, the rows being three feet apart, June 

 17 all three varieties were up. July 7, thirty days from the 

 time of planting, the stand was good on all three of the plots, 

 but thought to be too thick on 302 and 1002, Plants on 302 

 were 6 inches high ; on 1002, 4 to 5 inches high ; and on plot A 

 3 to 4 inches high. 



August 5, sixty days from planting, the soy bean A plants 

 w^ere 10 inches high; 1002, 14 inches; and 302, 14.5 inches. 

 Every 3 feet of row there were 8 soy bean plants A, 19 soy 

 bean 1002, and 20 soy bean 302. No disease or insect pests, 

 and all three plot"^ were showing vigorous growth. 



August II soy bean A was in blossom. August 13, 302 was 

 in blossom. August 18, 1002 was in bloom. 



September 5, 90 days from planting, soy bean A was 23 

 inches high and in good vigor, seed pods numerous with an 

 average length of nearly two inches. The beans averaged three 



