SEEDS WEEDS. 



57 



the lime, slag', and liquid manure are beneficial in proportion as tliey 

 neutralize the acid formed during the processes of germination. By the 

 entrance of these all^aline substances the loss of phosphoric acid in the 

 seed is i)revented, and the acid phosphate of lime is transformed into a 

 less soluble form, which will serve as a phosi)horic acid reserve of the 

 plant. 

 Average results of Danish seed control, 1886-95, E. Eostrup 



{Lommehog f. Landm. {Holt), ls96, pp. 



74-77 



-The i)rincipal data 



obtained iu the seed examinations by the Danish Seed-Control Station, 

 lS86-'95, are given in the following table. Varieties of seeds, of which 

 less than 50 diflerent samples were examined, are not included in the 

 table, and only complete analyses of commercially pure seed, the quality 

 of which the seedsmen are willing to guarantee, were considered in 

 making up the averages : 



Average results of Banish seed control, 1886-95. 



Name of seed. 



Ked clover. 



White clover 



Alsike clover , 



Ulacli medick , 



Aiithyllin vulneraria 



French ryo grass {Avena elatiur) . . . 



A'elvet grass (Rolcus lanatus) 



Meadow brome grass 



Orchard grass 



English rye grass 



Italian rye grass 



Kough nioaffow grass {Poa trivialis) 



Kentucky blue grass 



Meadow foxtail 



Meadow fescue 



Festvca dxiriuscula 



Timothy 



Two-rowed barley 



Euta-baga 



Turnip 



Carrot 



Fodder beet 



Num- 

 ber of 

 sam- 

 ples. 



1,957 



636 



546 



370 



80 



591 



77 



218 



940 



762 



504 



128 



75 



175 



404 



102 



583 



82 



59 



71 



148 



346 



Weight 



per 

 bushel. 



Lhs. 

 53.8 

 54.5 

 54.4 

 55.0 

 52.8 

 11.3 



5.6 

 11.9 

 14.5 

 22.4 

 18.9 

 19.8 

 22.9 



9.1 

 21.3 

 15.7 

 39.4 

 47.4 

 42.1 

 44.3 

 21.1 

 16.3 



Weight 



per 



1,000 



kernels. 



Grams. 



1.753 



.633 



.658 



1.580 



2.510 



3.549 



.442 



1.924 



.992 



2.039 



2.047 



.179 



.245 



. 8.59 



1. 857 



.774 



.422 



48. 872 



2.943 



2.049 



1. 255 



23. 823 



For- 

 eign 

 seed. 



Per ct. 



0.4 



1.8 



1.9 



.2 



2.8 



4.4 



4.6 



2.6 



2.4 



2.5 



1.1 



1.9 



1.3 



1.2 



3.8 



.6 



.9 



.1 



Refuse. 



Per ct. 

 3.0 

 2.2 

 1.5 

 1.6 

 4.6 



11.8 



26.4 

 3.0 



11.5 

 1.4 

 1.9 

 9.3 

 7.2 



16.3 

 2.0 



14.6 



.7 



.6 



1.8 



2.3 



10.8 

 1.3 



Purity. 



Per ct. 

 96.6 

 96.0 

 96.6 

 98.2 

 93.1 

 83.8 

 69.0 

 94.4 

 86.1 

 96.1 

 97.0 

 88.8 

 91.5 

 82.5 

 94.2 

 84.8 

 98.4 

 99.3 

 98.2 

 97.7 

 89.1 

 98.6 



Germi- 

 nation 

 of pure 

 seed. 



Per ct. 



ft 98. 7 

 0.97.3 

 a 97. 5 

 a 94. 3 

 a 97. 3 

 83.5 

 80.9 

 91.6 

 87.0 

 89.9 

 85.6 

 82.9 

 71.0 

 69.5 

 92.2 

 81.3 

 94.1 

 96.9 

 96.8 

 98.0 

 76.2 

 88.2 



Pure 

 germi- 

 nated 

 seed. 



Per ct. 

 86.2 

 77.9 

 82.7 

 85.1 

 82.1 

 70.0 

 55.8 

 86.5 

 74.9 

 86.4 

 83.0 

 73.6 

 65.0 

 57.3 

 86.9 

 68.9 

 92.6 

 96.2 

 95.1 

 95.7 

 67.9 

 87.0 



«The "hard" seeds are included. 



— F. W. WOLL. 



The Russian thistle, E. O. Wooton {Neiv Mexico Sta. Bui. 16, pp. 

 20, ph. 2). — This i)lant was first recognized in the Territory in 1894, 

 and it seems to be jiretty well established in the vicinity of Santa Fe 

 and possibly at Koswell. The author advises that every effort be made 

 to eradicate it while the weed is confined to a restricted range, an 

 especial Avarning being given of its possible distribution through the 

 agency of irrigating ditches. Technical descriptions are given of the 

 plant. Several other weeds are mentioned which are sometimes mis- 

 taken for it, and their most striking differences are pointed out. Vari- 

 ous sources have been drawn upon for the habit of the plant, its 

 distribution, and suggested means for its exterminatiou. 



