118 EXPERIMENT STATION RECORD. 



All analysis showing food constituents is given. 



In trials by two otber cultivators the velvet beau is reported as val- 

 uable for green manuring iu orange groves and for fet-diiig to horses 

 and cattle. 



Flax, W. Saunders {Canada Exptl. Farms Bui. 25, pp. 11, figs. 

 3). — This bulletin treats of the culture of flax, the amount and value 

 of the flax crop in Manitoba and the United States, flax growing in 

 Ontario for fiber, and of the exhaustion of the soil produced by the flax 

 crop. The author states that "the diflereuce in exhaustive effect of 

 these several crops [wheat, oats, and flax] on a rich soil would scarcely 

 be perceptible, and would not justify the opinion that flax is a very 

 exhausting croi>." When grown for fiber, flax is pulled at a cost of $4 

 to $5 per acre, the yield of fibei' averaging li tons, and of grain 8 to 

 9 bu. per acre. The average yield in Manitoba when grown for seed in 

 1895 was 15^ bu. per acre. 



Experiments -with lupines and. other nitrogen gatherers, B. Lar- 

 SEN {Tidsskr. norslie Landbr., 3 {1896), pp. 8ti-96). — Experiments with 

 lupines and other nitrogen-gathering plants were made on several Nor- 

 wegian farms. The effect on potatoes and oats of a preceding lupine 

 crop, either harvested or plowed under, and with or without ai)plica- 

 tion of commercial fertilizers, was studied during 1895. 



Poor, sandy soil, uumauured for a number of years, was selected for 

 the tests. 



All of the 7 potato plats received an application of superphosphate 

 and basic slag, and in addition nitrate and carbonate of potash, singly 

 or combined, were applied on 4 plats, on 3 of which a crop of lupines was 

 plowed under; on 1 plat without potassic fertilizers the entire lupine 

 crop, on another the roots and stubble only, were turned under. 



The 7 plats of oats were treated in a somewhat similar manner. The 

 data are tabulated. The results indicate that the supply of nitrogen 

 furnished by the crop of lupines plovred under was not sufficient to meet 

 the requirements of the potatoes, since an additional allowance of nitrate 

 of potash increased the yields obtained. 



Infection experiments with lupine soil were made at 2 substations. 

 Soil on which lupines had grown successfully was carted on to the land 

 in quantities varying from 132 to 396 bu. per acre. The results are 

 tabulated. The author considers 264 bu. per acre of lupine-infected 

 soil ample to obtain a good stand of lupines, and 132 bu. will often prove 

 sufficient. As the cheapest and most effective method of infecting a 

 field to be sown to lupines the author recommends when sowing oats 

 to add a small amount of lupine seed a year or two before growing 

 lupines exclusively on the land. 



In another experiment during 1895 oats, vetches, j^eas, and lupines 

 were grown with and without fertilizers on land a portion of which was 

 treated with lupine soil. 



The results are tabulated. The author concludes that lupine infec- 



