466 EXPERIMENT STATION RECORD. 



After doscribiii}^ tlic cxperimtMit and icjiortiiig the ivHiilts in detail, the aiitiior con- 

 cludes — 



"That mangels can be irrown continuously on the same land without injuring the 

 tilth of the land or the health of th(> crop. That a liberal dressing of farmyard 

 manure forms the best basis of tlu; manure for mangels. Tliat the crop will further 

 respond to considerable additions of active nitrogenous manures to the dung, jiarticu- 

 larly of nitrate of soda. That a free supply of potash salts is essential to the proper 

 develoi)ment of the jnangel, hence a specific. i)otash maimring is desirable even when 

 dung is used in large (juantities, and on a strong soil initially rich in potash. When 

 nitrogenous manures are used in addition to dung, tlie potash salts should be increased 

 pro rata, in order to maintain the health and feeding value of the croj) and to bring 

 it to maturity. That, in conjunction with dung, superphosphate or other phosi)hatic 

 manure is hardly necessary and will give little appreciable return, especially when 

 the crop is grown in rotation. That, as soluble alkaline salts are beneficial to the 

 mangel crop, either as direct foods or as economizers of potash, a dressing of salt 

 should always be included among the manures for the mangel crop." 



A variety test of oats, J. H. Stewart and H. Atwood ( West Vinjirda Sin. Bnl. 

 S4,j)p. 475-480). — Of 24 varieties grown in 1900 Extra Swedish, Black Prolific, Silver 

 Mine, White Bonanza, American Banner, Big Four "White, Imperial American, and 

 White Russian, given in the order of their productiveness, yielded from 60 to 67.8 

 bu. per acre. The lowest yield ol:)tained from any variety was 35 bu. In 1901, 5, 

 and in 1902, 7, of these varieties were again among the 8 leading sorts. The influence 

 on the yield of the distriljution of rainfall during the growing season is shown. 



On tlie viability of shelled oats, J. A. Andersson {Landtmannen, 13 (1902), No. 

 42, pp. G76-(!7S). — Trials conducted by the author showed that shelled oats are con- 

 siderably inferior to unshelled oats, not only as regards viability and germinative 

 energy, but also in yield. The latter was 20 to 25 per cent lower in case of the 

 shelled oats, under similar cultural conditions for liotli kinds of grain.— f. w. woll. 



The rape plant; its culture, use, and value, J. 11. Grisdale {Canada Cent. 

 E.ijit. Farm linl. 4-'-, pp- '>)• — General and l)rief directions are given for the culture of 

 the rajie plant, and the uses of the crop in feeding different kinds of farm animals 

 are noted. 



Distance experiments -with sugar beets, J. J. YAxnA {Centbl. Aijr. Chem., 32 

 {1903), No. S,pp. 538, 539). — Sugar beets were grown 20, 25, and 30 cm. apart in rows 

 35, 40, and 45 cm. distant. The distance allowed each plant ranged from 700 to 1,350 

 sq. cm. The smallest yields were obtained from the 35 cm. rows with the plants at 

 intervals of 30 cm. Planting the beets 30 cm. ai)art in rows 45 cm. distant gave nuich 

 the best yields. 



Distribution of sugar in the beet, I. Zlobinski ( Vyestnik Sakh. I'rom., 1903, 

 No. 21; ahs. in Zhur. Opuitn. Agron. [.Tour. E.ipt. Lnndw.'\, 4 {1903), No. 4, P- 499). — 

 Taking his investigations as a basis, the author describes the portion of the beet 

 richest in sugar to be a narrow zone around the center of the root. — p. fireman. 



The effect of removing or injuring the leaves of sugar beets on the devel- 

 opment of the plant, H. Claassen (Centbl. Agr. Clietn., 32 {1903), No. 8, pp. 

 639-541)- — Experiments were made to determine the effect of removing some of the 

 leaves of sugar beets while the plants are still growing. In one row the small inner 

 leaves of the plant were entirely cut away; in another row the larger outer leaves 

 were removed; while from all except the smaller inner leaves of the plants in a 

 third row, one-half of the leaf surface was cut away; and in the fourth row the 

 leaves were mutilated in a manner approximating injuries due to hail. 



The smaller inner leaves were soon replaced after their removal by a new growth. 

 The larger leaves were not replaced, but the remaining ones made a good vigorous 



