826 EXPERIMENT STATION RECORD. 



The possible injurious effect of perchlorate in nitrate of soda, P. Wagner 

 (Jahrb. Deul. Landw. Gesell., 1:2 (1897), pp. 15-19).— The danger of using- nitrate con- 

 taining perchlorate. to which Sjollema ' has called attention, is discussed, and experi- 

 ments are reported to show that no injury resulted when the amount of perchlorate 

 present did not exceed 0.5 per cent. 



On the value of phosphoric acid in superphosphate and in ground Thomas 

 slag, P. Wagner (Jahrb. Dent. Landw. Gesell., 12 (1S97), pp. 146-150).— A popular 

 discussion. 



What value has the phosphoric acid of bone meal for agriculture ? Sciiultz- 

 Lupitz ktai, {Jahrb. Dent. Landw. Gesell. , 12 (1897), pp. 140-146).— The conclusions 

 of Wagner and Maercker are briefly reviewed, and personal experience is referred to 

 which showed that hone meal is not effective as a source of phosphoric acid on dry, 

 light, sandy soils. It appears to be readily utilized by leguminous plants which are 

 also able in favorable conditions to use crude phosphate to advantage. 



Report of experiments with different kinds of crude potash salts, M. 

 Maerckek (Jahrb. Dent. Landw. Gesell, 12 (1897), pp. 150-154).— Experiments with 

 kainit, sylvinite, muriate of potash, carnallite, and other Stassfurt salts on potatoes 

 and barley are briefly reported. Potash in form of chlorid was taken up by the 

 plants more largely than that in form of sulphate. This is ascribed to the greater 

 diffusibility of the chlorid. 



A soil test with fertilizers, H. P. Armsby {Pennsylvania Sta. Rpt. 1S96, pp. 123- 

 143).— A reprint of Bulletin 35 of the station (E. S. R., 8, p. 298;. 



FIELD CROPS. 



Results obtained in 1897 from trial plats of grain, fodder corn, 

 and roots, W. Saunders (Canada Cent. Expt. Farm Bui. 29, p. 40, 

 pi i). — This work was similar to work previously reported (E. S. R., 8, 

 p. 971). Variety tests with oats, barley, spring wheat, peas, corn, 

 turnips, inangel-wurzels, carrots, sugar beets, and potatoes were made 

 at 5 experimental farms located in different parts of the Dominion, and 

 the results are here reported in tabular form. All crossbred varieties 

 which entered into the experiment were produced at the experimental 

 farms. The results of these tests are briefly noted below, the varieties 

 mentioned as most productive being those which gave the largest aver- 

 age results at all the experimental farms. 



Oats. — Sixty-three varieties, including 10 crossbred sorts, were sown 

 at the rate of 2 bu. per acre on tenth and twentieth acre plats. Among 

 these, Improved American, Golden Giant, Chevalier O. A. C, Columbus, 

 Mennonite, American Beauty, Early Golden Prolific, Bavarian, Rose- 

 dale, Golden Tartarian, Wallis, and Black Beauty, iu the order named, 

 produced the largest crops. The average yield for these varieties was 

 65.29 bu. per acre. 



Barley. — Fifteen 2-rowed and 20 0-rowed varieties were tried. The 

 size of the plats and the rate of seeding were the same as in the experi- 

 ments with oats. The 2-rowed sorts yielding the largest crops were 

 Nepean, French Chevalier, Sidney, Pacer, Canadian Thorpe, and Vic- 

 tor, in the order given. Of these, Nepean, Sidney, Pacer, and Victor 



• Chem. Ztg., 20 (1896), p. 1002 (E. S. R., 8, p. 762). 



