10 



BULLETIN 1379, U. S. DEPARTMENT OE AGRICULTURE 



Table 9. — Yields of winter wheat on plats following electro cultural treatment (posi- 

 tive charge), section B, Arlington Experiment Farm, in 1912 



Plat 



Yields (pounds) 



Ratio of treated to control 



Shock 



Grain 



Straw 



Shock 



Grain 



Straw 



Treated . 



3,465 

 3,300 



1, 154 

 1,114 



2.311 



2,186 



} 1.05 



1.04 





Control 



1.06 



Experimt nts in 1913. — In the fall of 1912 the same plat in section B 

 was again sown to wheat. The 7-foot network of the previous year 

 was replaced by a permanent one 16 feet high, with cross wires 10 

 yards apart. The new network was erected over the northern half 

 of the plat instead of the eastern half as in preceding years. The 

 network was charged positively with the Lodge-Newman apparatus, 

 and the treatment was given daily from 4 p. m. to 8 a. in. 



The treated and control portions each had an area of three-fourths 

 of an acre. At harvest the weights shown in Tahle 10 were recorded. 



After the wheat was cut, cowpeas were sown on the B plat on 

 July 29, 1913. 



The static machine was connected to the network (16 feet high), 

 giving about 40 to 50 kilovolts. The machine (positive charge) was 

 run four hours a day from 3 to 7 p. m. for 32 days. On account of 

 the lateness of the season, the cowpeas were cut for hay. After being 

 stacked and cured, the crop was weighed in the field by means of a 

 tripod and spring balance, showing the following yields: Treated por- 

 tion, 1,807 pounds; control portion, 1,847 pounds; ratio of treated to 

 control, 0.98. 



Table 10. — Yields of winter wheal on plats following electrocidtural treatment (posi- 

 tive charge), section B, Arlington Experiment Farm, in 1913 



Plat 



Yields (pounds) 



Ratio of treated to 

 control 





Shock 



Grain 



Shock 



Grain 



Treated . 



3,254 

 3,139 



SOS 









782 r 



1.03 











Experiments in 1014- — Corn was planted in the B plat on May 24, 

 1914, and the network (16 feet high) was connected directly to one 

 wire of a 6,600-volt 3-phase 25-cycle alternating-current power line 

 running past the farm. The voltage was on continuously day and 

 night for 110 days, when the corn \vas cut and the total weights 

 recorded in the held. It was then shocked and given time to dry. 

 Husking was done in the field on October 9 ; 1914, and the grain and 

 fodder brought to a platform balance in the barn and weighed. The 

 superintendent of the farm expressed the opinion that the treated 

 plat had had some advantage over the check plat as regards soil- 

 moisture conditions. The yields shown in Table 11 were recorded. 



