1082 EXPERIMENT STATION RECORD. 



tests of seeding at different dates have led to the conclusion that the best time 

 of sowing the seed in that section is from about June 10 to 20. 



General directions for the culture of the crop are given, and on land not 

 already rich the use of 1,000 to 1,200 lbs. of basic slag meal, 300 to 8.10 lbs. of 

 high-grade sulphate of potash, and 75 to 100 lbs. of nitrate of soda in addition 

 to a heavy dressing of manure is recommended as i)art of the soil pre])aration. 



Corn growing- in Oklahoma, L. A. Moorhouse {Oklahoma ^ta. ('ire. Inform. 

 10, pp. 7). — (General directions for corn culture are given, the niethf)ds used in 

 Oklahoma are described, and means of improving corn by selection are sug- 

 gested. 



Corn culture, M. V. Calvin and J. M. Kimbrough {Georgia Hta. Bid. 78, pp. 

 lll-12.'f). — Fourteen varieties of corn under test produced an average of 2r).17 

 bu. of shelled corn per acre. The three leading varieties and their yields of 

 shelled corn per acre were as follows: Stone Flint 30.13 bu., Cocke Prolific 29.77 

 bu., Marlboro 28.92 bu. It is pointed out that the varieties subjected to seed 

 selection at this station have moved uinvard in rank of production. 



Fertilizer experiments carried on with cotton meal and cotton seed showed 

 that the yields of cotton and corn were largely increased as the result of using 

 these substances' as sources of plant food. 



Corn was grown according to the Williamson and the Gilmore methods, the 

 yield per acre under the Williamson method being 40.95 bu. of shelled corn, and 

 imder the (Jilmore method 35.59 bu. A description of both of these methods is 

 given. 



A variety test of corn, in cooperation with this Department, is also reported. 

 The average results for 5 years show that Marlboro ranked first, with an aver- 

 age yield of 39.49 bu., McMackin Gourd Seed second with 38.27 bu., and Cocke 

 Prolific third with 36.17 bu. per acre. 



The Williamson plan in 1907, C. L. Newman {South Carolina Sta. Bui. 

 135. pp. 21, flijfi. !)). — A series of experiments are reported in which the Wil- 

 liamson plan of growing corn was compared with the usual method. 



The results secured on 19 different plats, of which 6 were check tests, were 

 apparently in favor of the ordinary method. The largest yield in this series, 

 27 bu. .50 lbs., was secured on a plat treated according to the Williamson plan 

 and receiving 450 lbs. cotton-seed meal in place of the nitrate of soda in the 

 general application on the Williamson plan i)lats, which consisted of 300 lbs. 

 each of cotton-seed meal and acid phosphate, 600 lbs. of kainit, and 225 lbs. of 

 nitrate of soda per acre. 



Marlboro Prolific, Fry Improved, Clemson College, and Hickory King were 

 compared by the two methods. The average yield of all varieties by the Wil- 

 liamson plan was 11.9 bu. and by the ordinary method 18.5 bu. per acre. 



The average weight of 100 stalks grown according to the ordinary method 

 was 77.6 lbs. as compared with 40.6 lbs for the Williamson method. 



In another series the yield secured by the Williamson plan of corn culture 

 with 1,425 lbs. of fertilizer and the ordinary method with 400 lbs. of fertilizer 

 per acre shows that while the increase in fertilizer used on the Williamson plan 

 plats was 255 per cent, the increase in grain produced was only 37.5 per cent. 

 A comparison of the two methods on worn-out soils with the use of 900 lbs. of 

 fertilizer per aci-e gave 10.3 bu. per acre by the Williamson plan and 14.8 bu. 

 by the ordinary culture, and where no fertilizer was used the yields were 4.7 

 bu. and 4.9 bu., respectively. 



At the Coast Land Station at Charleston 69.5 bu. per acre was secured by 

 the Williamson method and 40.5 bu. by the usual method. The Williamson plan 

 ])lats contained 4^ times as many stalks to the acre as the plats grown by the 

 usual method, but the increase in yield amounted to only 46.9 per cent. The 



