232 EXPERIMENT STATION RECORD. [Vol. 43 



test conducted for a nxiinher of years, lime nitrogen as compared with nitrate 

 of soda showed a relative effectiveness of 60 to 75 per cent when applied to 

 sugar beets, and of 55 per cent when applied to field beets. 



The results of variety tests in progress for four years showed that I'ansar 

 and Fylgia wheat gave higher yields of grain than were secured from Extra 

 Squarehead 2. In a test of different varieties of rye the best yields were ob- 

 tained from Stjjtrn and StSl rye as compared with Bretagne and Petkus. 

 The following varieties of spring-sown crops led in productiveness: Gull, 

 Piincess, and No. 0412 barley, Seger oats, and Svalof Spring Squarehead and 

 Svalof Extra Club wheat. 



Among different root crops, the leading varieties were Barres field beet, 

 Bangholm Swedish turnip, Bortfeld and Yellow Tankard turnips, and Svalof 

 Champion, Gul Jatte 2, and Extra Vit Jiitte carrots. Based on the results of 

 comparative tests with potatoes, the varieties Arran Chief, King Edward, and 

 Perle von Erfurt, late, medium, and early varieties, respectively, are recom- 

 mended. 



Barley fertilizer experiments, O. Lemmkrmann (Wchnachr. Brau.. 36 (1919), 

 No. J/S. pp. 355-.358).- — Experiments on the action of different fertilizers and soil 

 amendments and on the infiuence of the cultural condition of soil on barley 

 are reported. 



Studies of the relative fertilizing values of different nitrogenous fertilizers 

 for barley, including ammonium chlorid, sodium-ammonium nitrate, lime nitro- 

 gen, urea, guanol, sodium nitrate, and ammonium sulphate, are first reported. 

 The results showed that the nitrate forms of fertilizer were the most effective. 

 Urea, however, gave marked results, but guanol and lime nitrogen had little 

 effect, the former being used at a small loss. The annnonium fertilizers also 

 were not very effective. Better results can be obtained with ammonium fer- 

 tilizers by mixing them deeply with the soil. Further studies with sodium 

 nitrate and ammonium fertilizers indicated that their effectiveness increased 

 with the size of application up to 80 lbs. per acre. 



Experiments with barley soils which had not been fertilized with phosphate 

 for 10 years showed no effect from applications of stable manure. Similar 

 results were obtained with potash fertilization, and it was noted that there 

 was no difference between the action of raw salts and that of high-grade salts. 

 Further experiments with kainit and potassium chlorid showed that better 

 results were obtained on barley with spring applications. The lime-magnesia 

 ratio in soils was found not to be an important factor in large-scale barley 

 growing. 



Studies of the effect with different types of barley are also briefly noted. 



Broom-corn experiments at Woodward, Okla., B. E. Rothgeb and J. B. 

 SiEGLiNGEB (U. S. Dept. Agr. Bui. 836 {1920), pp. 53, figs. 7).— The results of ex- 

 periments with broom corn, covering a period of five years and embracing 

 variety and cultural tests, are reported in detail, and tlie climatic and soil con- 

 ditions of the region in which the work was carried on are described. The 

 conclusions drawn are based on the data presented in tables and discussed. 



It was found that all varieties tested produced high yields in favoi'able sea- 

 sons, but that only adapted varieties yielded well in the less favorable seasons. 

 Dwarf broom corn, which outyielded the Standard, is considered as requiring 

 less water than the Standard variety, and therefore as better adapted to the 

 conditions prevailing in the region concerned. Both groups were found to 

 sucker, but the tendency was present to the greater degi'ee in the I>\v:uf 

 varieties. 



