938 EXPERIMENT STATION RECORD. 



phatic slag alone. The soda supplied in the nitrate may have partially remedied the 

 lack of potash in the soil. There was little difference in the results from the use of 

 muriate and sulphate of potash, but they confirm previous observations that muriate 

 of ])otash tends to increase the yield of grain and sulphate of potash the yield of 

 straw. The following year the effect of the potash and nitrogen fertilizers, with (^)r 

 without the addition of lime, was studied with barley as a trial croj:) and on clay as 

 well as on sandy soil. The clay soil contained 0.35 per cent of nitrogen, 0.03 per 

 cent of phosphoric acid, 0.12 per cent of lime, and 0.02 per cent of potassium oxid, 

 while the corresponding data for the sandy soil were respectively 0. 13, 0.08, 0.07, 

 and 0.01 per cent. Phosphoric acid in the presence of lime, potassium chlorid, and 

 nitrogen increased the yield about 50 per cent, whether ammonium sulphate or 

 nitrate of soda was applied, with slightly better results, however, in favor of ammo- 

 nium sulphate. Lime with phosphoric acid, potash, and nitrogen produced better 

 results than those alone on ])oth kinds of soil, but the plants growing on clay soil 

 and receiving ammoniacal nitrogen were evidently somewhat more benefited by the 

 addition of lime than those receiving nitrate of soda. Sandy soil responded still better 

 to fertilization A\'ith lime than the clay soil, as might be inferred from the chemical 

 analyses of the 2 soils. A comimrison of the results with muriate and sulphate of 

 potash in the presence of lime and nitric or ammoniacal nitrogen does not indicate 

 any appreciable difference between the 2 forms for clay soils, while on the sandy 

 soil the muriate when given with sulphate of ammonia did somewhat better than 

 the sulphate, the relative yields of grain being as 100:91 and the total yield as 

 100:9i.— F. w. woLL. 



Field experiments with grain and forage plants, E. A. Moore ( Wisconsin 

 Ski. Bpt. 1901, pp. 237-ii54, fig.i^- '2). — These experiments were largely in continuation 

 of work previously reported (E. S. R., 13, p. 36). The results of variety tests with 

 oats, barley, emmer, peas, winter wheat, winter rye, and vetch, are given in a table. 

 Swedish oats yielded 40 bu. per acre, while the common varieties averaged about 30 

 bu. Among 38 varieties tested during the past 3 seasons, Swedish and Siberian oats 

 have shown the most commendable characteristics. Early Gothland and White 

 Bedford have also given promising residts. Manshury, Oderl)rucker, and Silver 

 King were the most satisfactory of 16 6-rowed varieties of barley. Silver King 

 showed all the characteristics of Manshury. Two-rowed, hulless, and beardless l)ar- 

 leys did not give satisfactory results. Of the 2 varieties of winter wheat grown, 

 Turkish Red yielded 32.3 bu. j)er acre, and Kings Early winterkilled. Petkus and 

 Schlansted, the only varieties of winter rye tested, gave good returns. The tests 

 with peas were not satisfactory, owing to the seed Ijeing so badly affected by the 

 weevil. Peas affected with the weevil showed a germinating power of 20 per cent, 

 and those unaffected of 94 per cent. Russian vetch yielded only 2\ bu. of seed per 

 acre. 



In addition to the above experiments, tests with rape, alfalfa, clover, brome grass, 

 soy beans, and cowpeas are reported. A test of seed of Dwarf Essex rape, grown 

 near Puget Sound, in Washington, gave promise of a possibility of successfully grow- 

 ing rape seed in this country. Four pounds of Dwarf Essex rape and 3 bu. of oats 

 per acre sown broadcast gave a yield of 32i bu. of oats per acre and a satisfactory 

 growth of rape for fall forage. The culture and uses of rape are briefly discussed. 

 An instance is cited of injurious effects resulting from pasturing sheep on frozen rape. 

 The results of a number of tests indicated that alfalfa can be sown with oats as a 

 nurse crop. On several iilats where only 1 b"a. of oats was sown per acre the alfa'Ja 

 made a vigorous and healthy growth and left a good stand for winter protection. As 

 compared with American and European varieties of red clover, Turkestan alfalfa 

 showed superior drought-resisting qualities. American red clovers and European 

 clovers "were grown to compare their (piality, hardiness, and productiveness. The 

 American varieties were medium and mauimoth red clovers, and the Euroi)ean vari- 



