626 EXPERIMENT STATION RECORD. [Vol 40 



freight for wheat, rye, barley, oats, and corn throughout the world up to Octo- 

 ber 31, 1918. 



[Spring and fall applications of fertilizers on grasslands], P. Bolin 

 (Meddel. Centralanst. Forsoksv. Jordbruksomrddet, No. 1^8 (19111), pp. 8). — Ten 

 cooperative experiments were conducted in 1915 and 1916 to determine the 

 relative value of spring and fall applications of fertilizers on grasslands. All 

 series of plats received 200 kg. of superphosphate and 100 kg. of potash salt 

 per hectare and one series received in addition 200 kg. and another 100 kg. of 

 nitrate of soda per hectare (89 lbs. per acre). The applications were made 

 from April 13 to May 1 and from October 26 to November 30. 



The tabulated results show that in each of the 10 tests the complete fertilizer 

 applications made in the spring produced a greater increase in yield than the 

 corresponding applications made in the fall. This was specially true wheu 

 the herbage consisted largely of grass, but spriug application was also at least 

 as effective as fall application when the stand included a large proportion of 

 clover and the fertilizers used consisted of an adequate quantity of only super- 

 phosphate and potash salt. 



[Fertilizer experiments with rice and cassava], A. W. K. de Jono and C. 

 van Rossem (Dept. Landb., Nijv. en Handel [Dutch East Indies], Meded. Agr. 

 Chetn. Lab., No 18 (1918), pp. 36, figs. 3). — This reports the continuation of 

 experimental work with different fertilizing materials for rice for 1917, along 

 the same lines as previously noted (E. S. R., 39, p. 537), together with tests of 

 sodium nitrate and ammonium sulphate for cassava. The results obtained 

 with rice were practically the same as those obtained In 1916. Sodium nitrate 

 appeared to be superior to ammonium sulphate for cassava. 



[Experiments with barley], K. Vik (Aarsber. Norges Landbr. HoisknU a 

 Akervckstforsok, 28 (1916-11), pp. 65-91, fig. 1).— The results of variety tests 

 with barley in progress for a number of years are reported and discussed with 

 special reference to the value of Asplund barley, a new variety. In nearly all 

 cases under the different conditions of growth Asplund surpassed in yield, the 

 greater yields being specially outstanding on well fertilized barley soil. This 

 variety is reported as having exceptionally stiff straw and as yielding fully 

 with the best varieties under conditions of drought. The quantity of straw pro- 

 duced was about the average for six-rowed sorts. The growing period was 

 found to be a little longer than that of the common Norwegian six-rowed barley. 

 The new variety is described as having somewhat small kernels, but that other- 

 wise the grain quality is up to the six-rowed standard. The grain is heavy, 

 has a thin hull, and appears to be richer in fat and starch but poorer in protein 

 than the other varieties studied. 



Of the older varieties Finnegut and Bjorneby ranked next to Asplund in the 

 yield of grain, although their yields were lower by about 200 kg. per hectare 

 (3.7 bu. per acre). Maskin, as compared with Mjos, both new varieties devel- 

 oped by the plant breeding station at H edema rken, gave the larger yield of 

 grain, being on a par with Finnegut. Maskin proved to be an early variety with 

 strong straw. 



Svalof Guld and Refsum, two-rowed varieties, were equal in average yield, 

 and while Svalof Guld did not seem to be exacting in its requirements it was 

 surpassed in yield under the more favorable conditions of growth. Refsum 

 ripened about a week earlier, but stood under Svaldz Quid In quality of grain. 

 As compared with Asplund, both varieties yielded about 370 kg. per hectare (6.9 

 bu. per acre) less. 



A study of the seeds of the Brassiea occurring in Japan: A scheme for the 

 determination of the different sorts, M. KONDO {Her. Ohnra Inst, l.amlic. 

 Forsch., 1 (1917), No. 2, pp. 123-150, figs. 12).— The author describes observa- 



