^32 EXPERIMENT STATION EECOED. 



17 cts. ; subsoiling, $1.43 ; drilling, 40 cts. ; cultivating, 38 cts. ; listing, 60 cts. ; 

 cutting and binding, 62^ cts. ; shocking, 50 cts. ; twine, 22^ cts. ; and bindei- wear 

 and repair, 15 cts. The comparative cost per acre of producing corn by different 

 methods is shown as listed, $5.98 ; spring plowed, $7.11 ; fall plowed, $7.49 ; sub- 

 soiled, $8.18; and summer tilled, $12.36. Data for each station are given and 

 the results discussed. 



" No one method of seed-bed preparation is essential to the production of 

 corn in the Great Plains. Differences in seed-bed preparation, other than sum- 

 mer tillage, have not produced wide differences in grain yields, except at 

 Huntley, Mont. Summer tillage has slightly increased the grain yield at all 

 except three stations and has materially increased the fodder yields at the 

 three southern stations. The increase in yields, however, has not been suffi- 

 cient to make it the most profitable method at any station except Scottsbluff. 



"At some of the stations, especially at North Platte and Akron, crop sequence 

 is more important than seed-bed preparation in the production of corn. At 

 eight of the 13 stations corn as a grain crop has not been produced at a profit 

 by any method. When a value of $4 per ton is assigned to the stover or fodder, 

 corn has been profitably grown by some method at all but one of the stations. 

 The response to diffei'ences in culture and crop sequence is greater in the 

 southern and central portion of the Great Plains than it is in the northern 

 portion." 



A new and prolific variety of cotton, G. W. Cabvee {Alabama Tuslcegee Sta. 

 Bui. 26 (1915), pp. 7, fig. 1). — This notes a variety of cotton produced by the 

 station having a long, fine staple, very prolific, remarkably wilt resistant, 

 adapted to upland conditions, and bred from Sea Island, Russell Big Boll, 

 Jacksons Wilt Resistant, and Simpkins Prolific. Cultural methods are sug- 

 gested. 



[Flax growing], H. L. Bolley {North Dakota Sta. Circ. 6 {1915), pp. J/). — 

 This suggests improved methods, including early sowing, the preparation of 

 corn ground for seeding to flax, the use of wilt-resistant varieties, and the 

 official inspection of the seed field by the station. 



Fiber flax, F. C. Miles {U. 8. Dcpt. Agr. Farmers' Bui. 669 {1915), pp. 19, 

 figs. 10). — This discusses the production of flax for fiber, covering methods of 

 cultivation and preparation of the fiber. 



Oats in the Great Plains area: Halation of cultural methods to production, 

 E. C. Chilcott, J. S. Cole, and W. W. Buee {U. S. Dept. Agr. Bui. 218 {1915), 

 pp. 42, figs. 2). — This bulletin contains a study of the yields of oats from dif- 

 ferent methods of cultivation and seed-bed preparation similar to that for 

 barley (see p. 230). Descriptions of the climatic conditions and of the general 

 plan of the investigations are followed by the results obtained at each of the 

 several stations. 



The average cost per acre of the farm operations involved is given as the 

 same as that for oats (see p. 231), except that cutting and binding cost 40 cts., 

 shocking 13 cts., and twine 25 cts. The cost per acre of producing oats in the 

 shock in the Great Plains area, as the averages of data from eight stations, 

 show for disked corn land $4.50. listed $5.30, spring plowed $5.84, fall plowed 

 $6.31, subsoiled $6.92, summer tilled $11.25, and green manuring $14.30. 



Tables show itemized data for yields and costs at each station for the differ- 

 ent methods for several years, and these are briefly discussed. 



These investigations have shown that " the relatively poor adaptation of oats 

 to the southern section of the Great Plains can not be overcome by cultivation. 

 Seasonal conditions cause much wider variations in yields than can be caused 

 by differences in cultivation. . . , 



