1138 EXPERIMENT STATION EECORD. 



as those for corn. The seed should be sown at from 4 to G lbs. per acre about 

 3 weeks later than corn is planted. Four pounds of seed to the acre has given 

 the best results in the Texas Panhandle. The rows should be about 3i ft. 

 apart and the stalks 6 to 8 in. apart in the row. The yields vary from 25 to 55 

 bu. of seed to the acre, the avera.ue in the Texas Panhandle being about 40 bu. 



Fertilizer experiments with calcium nitrate for potatoes, A. Stutzer (Mitt. 

 Dciit. Lanclic. GescJJ., 23 (WOS), Xo. //, j)ij. 19-21). — These experiments wei'e 

 conducted in 1907 on the experiment field of the agricultural institute at 

 Konigsberg. Sodium nitrate and calciimi nitrate were applied in quantities 

 furnishing 2."')0, 500, and 7.50 gm. of nitrogen per plat of 100 sq. meters, or 1 are. 



In either form equal quantities of nitrogen produced equal increases in yield. 

 The quantity of dry matter obtained per are was a little greater where the 

 medium and heavy apidications of calcium nitrate were made than where like 

 (piantities of sodium nitrate were used. The best yield of pure starch was 

 secured where sodium nitrate was given in quantities furnishing .500 gm, of 

 nitrogen per are, followed by 250 gm. of nitrogen in the form of calcium nitrate. 

 Larger quantities of calcium nitrate reduced the starch yield. 



Fertilizers for potatoes, W. P. Brooks {Massacliuscttn i^ta. Circ. L'l, j)p, 4). — 

 Brief notes are given on the use of commercial fertilizers for potatoes, as indi- 

 cated by the results of experiments on soils retentive in character. 



Potato crops of the United States, 1866-1906, C. C. Clark (Z7. S. Dept. Agr., 

 Bur. Statis. Bui. 62, pp. 37). — This bulletin presents in tables the acreage, pro- 

 duction, and value of potatoes in the United States by States and by years from 

 1866 to 1006, inclusive. 



Rye crops of the United States, 1866-1906, C. C. Clark (U. S. Dept. Agr., 

 liiir. St(iti'<. Bnh 6(1, pp. JJ). — Tables are given in this bulletin showing the 

 average acreage, production, and value of rye in the United States by States 

 and by years for the period 1866-1906. 



Sorg'hum for silage and forage, J. M. Scott {Florida Stn. Bui. 92, pp. 35-f{2, 

 pi. I). — (General directions for the culture of sorghum for silage and forage are 

 given, and yields in a sOrghum variety test in 1907 are tabulated. The highest 

 yields of green forage, in the order mentioned, were produced by Pendant 

 (iooseneck. Erect Gooseneck, IManter Friend No. 37, Collier, Orange, and Planter 

 Friend No. 36. The heaviest yields of grain in the head were secured from th(> 

 following varieties: Shallu 2,112.5 His., Red Amber 1..500 lbs., Orange 1,366.5 

 lbs., and Red Kafir 1,187.5 lbs. i)er acre. 



The isolation of mother beets, G. Frolicii {Bl. Zurkcrriibcnbau, 15 (190H), 

 No. 1, pp. 1-0 ). — In the experiments reported it was observed that beets grown 

 at ordinary distances and allowed to mature without any control produced much 

 larger quantities of seed than beets isolated artificially or grown by themselves. 



Fertilizers for sugar beets, R. Harcourt (Ann. Rpt. Ontario Agr. Col. and 

 1-J.rpt. Farm, 33 (1901), pp. (jS-()9). — The results of cooperative fertilizer tests 

 showed that an application of 3(iO lbs. of superphosphate, 100 lbs. of sulphate 

 of potash, and 75 lbs. of nitrate of soda per acre was not always profitable in 

 growing sugar beets. All the experimenters report quicker germination and 

 earlier thinning by about 3 days as the result of using the fertilizers. 



Reports of the progress and improveinent in the culture of sugar beets 

 and sugar-beet seed, H. Briem (Bl. Zuckerrilbenbau, 15 (1908), No. 3, pp. 43- 

 50). — A list of 203 articles and publications on the sugar beet and subjects relat- 

 ing thereto published in 1907. 



Russia's wheat trade, I. M. Rubinow (U. S. Dept. Agr., Bur. Statis. Bui. 65, 

 pp. 77, jd. 1, map 1). — In continuation of previous work (E. S. H., 18, p. 393), 

 dealing with the conditions under which Russian wheat is produced, this bul- 

 letin discusses the conditions under which the wheat ox Russia is sent to 



