FIELD CROPS. 233 



tor 3'ield than siiiall tubers. This result is especially noticeable in dry 

 seasons. Early niaturino- varieties are more benetited b}^ planting' 

 large seed tul)ers than varieties having a longer period of vegetation. 

 Large seed tubers are especially desirable in light soils. 



Culture of Avheat and oats on the experimental fields at Grig- 

 non, P. P. Dehkkain (A/uk A(jn>ii., M {1900), No. 1, pi>- ^0-J3).— 

 The relative values of large and small grains for seed wheat, and the 

 proper place for oats in a system of field rotation were investigated. 

 Both crops were sown in fields on which crops of beets, potatoes, or 

 clover had been cultivated the preceding season. The ^aelds of wheat 

 obtained from the plats seeded with large grains were slightly better 

 than those where small seed had been used. The best results with 

 both wheat and oats were obtained on the plats which had grown a 

 crop of beets the preceding season, and the poorest results from the 

 iield which had been in clover. 



Report of the agricultural department, J. H. Shepperd {NortJi Dakota Sta. 

 Rpt. 1899, pp. 41-45). — A short outline review ot the work of the department during 

 the year, with a reprint of the conclusions in bulletins 38 to 40 of tiie station. 



Report of barley experiments in Denmark during 1898, C. Sonne [TidsHkr. 

 Laudbr. Plantmrl, 3 {1899), pp. l-iS-17;.'). 



Report of culture experiments with malt barley during 1897, C. Sonne 

 {Tidxsh: Laralhr. Planteavl, 5 {1899), pp. S9-62). 



Malt barley and its culture in Norway, A. KRoovif; (Tidsskr. No7\s:ke Landbr., 

 7 (1900), Ko. 4, pp- 145-155). 



Studies of plant variation and improvement, with special reference to 

 Goldthorpe barley, W. Johannsen ( Tid-^Hkr. Landbr. Flanteavl, 5 {1899) , pp. 63-90). — 

 The auth(jr gives data and discussions bearing on the relation of grain weight to the 

 Nitrogen content of Goldthorpe barley, and the effect of different factors on this 

 relation, like growing place, time of sowing, thickness of sowing, influence of season, 



etc. — F. W. WOLL. 



Investigation of the quality of upper Bavarian barley grow^n in 1899, 

 E. Ulkich {VrtJJHchr. Bayer. Landu: Rafhe.% 5 {1900), No.2,pp.l25-137).—Coni\)ara- 

 tive data as to the physical characteristics, germinative power, color, odor, specific 

 gravity, etc., of barley grown in 20 different districts of Bavaria. 



The harvest and sale of barley {Deut. Landw. Presse,27 {1900), No. 55, p. 699). — 

 An abstract is here made of an article on this subject by Remy. From the figures 

 given it is shown that the yellow ripe stage is the earliest condition in which barley 

 should be cut. For brewing purposes, however, it increases in value up to the dead 

 ripe stage. 



Some analyses of Norw^egian barley, F. H. Werenskiold {I'lds-^kr. i\xir.vAe 

 Landbr., 7 {1900), No. 2, pp. 68-74)- — Complete analyses of 10 samples of 6-rowed bar- 

 ley and 7 of 2-rowed barley are given, with discussion of their malting qualities and 

 other characteristics. All but 4 of the samples were grown in Norway. In No. 3, 

 pp. 109-114, of the same periodical, the author gives additional analyses of Norwegian 

 barley. — f. w. moll. 



Tests of commercial fertilizers on maize, A. Carre {SemaineAgr., 20 {1900), No. 

 999, pp. 218, 219). — In Haute-Garonne nitrate <jf soda was especially valuable for corn 

 in dry years. In rainy years the nitrate caused an excessivegrowth of stalk as compared 

 with the grain yield. In such years superphosphate and potash increased the grain 

 yield. A formula containing from 400 to 600 kg. of superphosphate and 200 kg. of 

 nitrate of soda, applied in drills, is recommended for the soils of the district. 



