838 



EXPERIMENT STATION RECORD. 



belonging to the same genus. An exception noted is the ability of the 

 root-nodule bacteria of the garden pea to inoculate the vetch. 



Rye cut when nearly mature yielded about 200 lbs. of hay per acre 

 more than uninoculated hairy vetch grown under the same conditions. 



The averages of several determinations of nitrogen in inoculated and 

 uninoculated plants are given in the following table: 



Nitrogen in inoculated and uninoculated plants. 



Nitrogen content. 



Nitrogen per acre. 



Tops. 



Total 

 product. 



Rye, nearly mature 



Hairy vetch, uninoculated... 



Hairy vetch, inoculated 



Crimson clover, uninoculated 

 Crimson clover, inoculated . . 



Per cut. 

 II. 52 

 1.23 

 2.71 

 1.62 



Pounds. 



26.0 



7.0 



105. 5 



4.3 



143.7 



Fertilizer experiments with inoculated hairy vetch, using mixtures of 

 acid phosphate and muriate of potash, as compared with no fertilizer, 

 showed considerable increase with the potash and phosphoric acid. 



"Leguminous plants . . . when amply supplied with tubercles need 

 no nitrogenous fertilizers, but are highly responsive to acid phosphate 

 and potash salts. These plants make heavy demands on the mineral 

 plant food of the soil." 



G-rasses and forage plants, B. O. Pittuck (Texas Sta. liuJ. 46, pp. 

 1011-1030, fitjs. 14). — This bulletin gives brief statements concerning 

 the relative value of 47 species of grasses and 14 other hay and forage 

 plants, grown in an experimental way at the station. In describing 

 the results of the tests of sorghum and teosinte the conclusions given 

 in a former bulletin are repeated (E. S. R., 2, p. 742). 



Experiments on the influence of depth of plowing on the rate of seed- 

 ing resulted in the best yields from broadcasting sorghum at the rate 

 of 4 bu. per acre on land plowed 15 in. deep and broadcasting at the 

 rate of 2 bu. per acre on land plowed 5 in. deep. Sorghum drilled in 

 rows 3 ft. 8 in. apart at the rates of £ and 1 bu. per acre gave best 

 returns on land plowed 5 in. deep, while drilling in rows 3 ft. apart at 

 the rate of 1 bu. per acre gave best results on land plowed 15 in. deep. 



Report of the State chemical-control station at Christiania, Nor- 

 way, for 1897, F. II. Werenskiold {Christiania, 1898, pp. 60). — The 

 report gives an account of the activities of the station during the year, 

 and contains summary statements and general discussions of the results 

 obtained. The investigations here referred to have been continued 

 from preceding years (E. S. R., 0, p. 398). 



Over 300 samples of sugar beets were analyzed during the year. The 

 samples contained from 8.47 to 14.98 per cent of sugar in the beet, the 

 average of all analyses being 12.04 per cent. The yields obtained were 

 small and in but few cases reached 12 tons per acre. For this reason 

 the results of the investigation are not considered very reliable. 



