632 EXPERIMENT STATION RECORD. 



tare, while the heavy application of water gave only a slight difference in total 

 yield. 



Cultivation and irrigation experiments, E. Kriiger {Mitt. Kaiser WilJwlms 

 InM. Landic. Bromherg, 5 {WIS). No. 3, pp. 226-235, fig. 1).—In reporting 3 

 years' work with oats, rye, and barley, it is pointed out that the Zehetmar and 

 Dembschinski methods of cultivation apparently gave increased yields over the 

 ordinary methods, and this was especially true of the former. Better results 

 are reported with 90 kg. of seed per hectare than with 60 or 120, while a drill 

 distance of 30 cm. did not give so good results as 20 cm. With oats and barley 

 an application of 30 mm. of water was followed by an increase in the yields in 

 all methods of cultivation. Tabulated data are given. 



Experiments on the utilization of lig'ht calcareous soils for intensive culti- 

 vations, E. JouziEB {Ann. Ecole Nat. Agr. Rennes, 5 {1911), pp. 65-96, figs. 5). — 

 An application of 100 kg. nitrate of soda per hectare apparently increased the 

 grain yield in 1911 495 kg. ; 200 kg. nitrate of soda in 3 applications increased 

 it 1,338 kg. ; and 200 kg. in 1 application increased it 1,543 kg. over the check 

 plats. Applications of 200 kg. nitrate of soda per hectare to beets, mallow cab- 

 bage, ruta-bagas, and white mustard also seemed to greatly increase the yields. 



Field experiments, 1911 {Godichnyi Otchet Ploti. Selsk. Khoz. Opytn. 

 Siantsii, 17 {1911), pp. 253-258). — In crop rotations including legumes the yield 

 of rye was higher by an average of 365 kg. and wheat by 339.3 kg. per hectare 

 than in rotations omitting legimies. An application of 35,000 kg. barnyard 

 manure resulted in an increase in yield of wheat of 493.2 kg., and of rye of 

 1,269 kg. per hectare over no fertilizers. Sugar beets following the grain crop 

 that had had the barnyard manure showed an apparent increase of 5,602.5 kg., 

 and potatoes of 5,310 kg. per hectare. An application of 26.7 kg. per hectare 

 of phosphoric acid in the form of superphosphate apparently increased the yield 

 of wheat by 752.4 kg., and in the form of Thomas slag by 303.3 kg. per hectare. 

 Rye was higher by 1,062 kg. per hectare with the superphosphate application. 



Top-dressing pastures, R. S. Gibb {Trans. Highland and Agr. 8oc. Scot., 5. 

 .ser., 24 {1912), pp. 292-297). — This paper reports trials with basic slag, kainit. 

 ground lime, and finely ground Algerian phosphate to determine why slag as a 

 phosphatic manure should have been so variable in its effect as previously noted. 



It is concluded that in all probability there were not many worn-out pastures 

 which did not benefit by the application of phosphatic manures ; Algerian phos- 

 phate, if finely ground, was not much inferior to slag if applied in the same 

 quantity. Potash in any form should be first carefully experimented with on 

 small areas. Ground lime at a ton per acre was of slight benefit as a surface 

 dressing. 



Experiments in fertilizing natural prairie consisting of red and white 

 sands at Bretagne, L. Fourton and H. Compain {Ann. Ecole Nat. Agr. Rennes, 

 5 {1911), pp. 137-140). — This paper gives tabulated data and discusses the re- 

 sults of applications of potassium sulphate, slag, sui)erphosphate. barnyard 

 manure, nitrate of soda, potassium carbonate, slaked lime, and unbleached wood 

 ashes to meadows. 



The check plats gave an average of about 5,000 kg. of hay per acre, and this 

 yield was increased or decreased according to the kind of fertilizer used. In 

 general the slag and the superphosphate induced the growth of the best varie- 

 ties of herbage but did not result in high yields, while the potash and nitrogen 

 fertilizers showed increased yields of hay, but this was of poor quality owing 

 to the greater proportion of inferior grasses and weeds. This was especially 

 noticeable with alfalfa plats. 



The size of the seed planted and the fertility of the plant produced, J. A. 

 Hahkis {Amer. Breeders Mag., 3 {1912). No. 4. pp. 293-295, fig. i).— This paper 



