288 FXPERIMENT STATION RECORD. 



FIELD CROPS. 



Experiments with different phosphates on corn, C. A, (Ioess 

 MA>'N {Ma-ssaehttsctta ;St((tc mi. lipt. ls<J3, pp. :,>21-.^25).—V\iOi=,\)\\^tw 

 slag, Mona guauo, Florida rock phosphate, South Carolina floats, each 

 at the rate of 850 lbs. per acre, and dissolved bone at the rate of HOO 

 lbs. per acre, were applii^d in connection with a constant (quantity of 

 nitrogen and potash. The fertilizer applied to each plat cost the same 

 amount. The largest yields of ears occurred where ground Mona 

 giuino and South Carolina phosj^hate were used, the largest yield ot 

 stover with phosphatic slag. 



Ash analyses of corn {Kentucl-i/ 8ta. Rpi. isoi, pp.l3-lT). — In con- 

 nection with a fertilizer experiment on corn describe<l in Bulletin No. 

 17 of the station (E. S. E., 1, p. 01) analyses were made of the corn 

 stover, corn cobs, shelled corn, and whole crop of corn grown with 

 difterent fertilizers. The result of these analyses are tabulated. 



"It is interesting to note that, althongli the soil of this fleld seems to he deficient 

 in potash and responds promptly to an application of potash fertilizers, yet the per 

 cent of potash in tlie water-free crop is nearly nniform, whether the fertilizer used 

 contained potash or not. The phosphoric acid, however, varies oousiderahly, and 

 the crop seems to tind ahiindauce of nitrogen at its disposal, removing in eacli case 

 more than Avas applied in the fertilizer." 



Experiments in crossing for the purpose of improving the cot- 

 ton fiber, r. H. Mell {Alabama College ^Sta. linJ. ■',(;, pp. 47, 1i<iK. 9, 

 2)ls. 4). 



Synopsis. — A classitication. of varieties of cotton, a study of the length and strength 

 of fiber as affected by crossing, a study of the properties of a well-formed cotton 

 fiber, tabulated data giving results of crossing varieties, and photo-micrographs 

 of the fiber and open bolls of crosses and varieties. 



An illustrated popular description is given of the cotton flower and 

 of the method of pollination, general remarks on improvement of the 

 fiber by crossing, and a description of experiments in this line. 



CJa,ssification of rarieties (pp. 13-15).— The varieties studied were 

 arranged in 7 groups, according to the length of staple, productiveness, 

 form of leaves, length of Umbs, habit of fruiting, size of bolls, and 

 character of seed. The groups were as follows: (1) Allen Long Staple, 

 W. A. Cook, Hunuieutt, Jones Long Staple, Wonderful; (2) Baily, Okra 

 Leaf; (3) Cherry Cluster, Herlong, Peerless, Welborn Pet; (4) J. C. 

 Cook; (5) Barnett, Dixon, Hawkins Improved, Jones Improved, Keifh, 

 King, Eameses, Trnitt; (fi) Gold Dust; (7) Peterkin, Peeler, Petit 

 Gulf, Storm Proof, Southern Hope, Zellner. 



Effect ofcroHfiinfi on the fiber (pp. 18, 19).— Experiments in crossing a 

 number of varieties on Peerless and W. A. Cook are described, and 

 plates given showuig the results of the crosses. 



