218 



those of the pigs in the other series. The bones of the mature, corn- 

 fed SAvine Avere stronger than those of the shorts-bran-fed pigs of the 

 same age. In the case of the groAving pigs the reverse Avas true. 



KEXnCKY. 



Kentucky Agricultural Experiment Station. 

 Department of the Agrictdtiiral and MechaiiicaJ CoUene of Kentuclcy. 

 Location, Lexington. Director, M. A. Scovell, M. S. 



BULLETIN No. 20, JULY, 1889. 

 COMMEKCIAL FEKTILIZERS. M. A. ScOVELL, ]M. S. (pp. 0~1()) . This 



contains explanations of the uses of nitrogen, phosphoric acid, and 

 potash as fertilizers, of the forms in AA'hich these materials are com- 

 monly found in commercial fertilizers, and of the analyses and A\alua- 

 tions of such fertilizers. There are also a tabular record of analyses 

 and A'aluations of seA^enty brands of fertilizers, legally on sale in Ken- 

 tucky ; the full text of the State fertilizer hiAA^ ; the rules and regula- 

 tions for the sale and sampling of fertilizers, made by the director of 

 the Station in conformity Avith the laAv; and adA'ice to purchasers of 

 fertilizers. 



BULLETIN No. 21, SEPTEMBER, 188!l. 



Experiments avith aviieat (i^p. 3-15). — These included tests of 

 varieties, methods of seeding, and fertilizers, and Avere mainly con- 

 ducted on the Exi;)eriment Station farm, Avhich is in the Blue-grass 

 region, and has a light c]ay subsoil. retentiA^e, and Avithout proper 

 drainage. The farm is, therefore, not especially adaj)ted to A^dleat. 



Tests of varieties (pp. -i-S). — This contains a tabular record of 

 tests of forty-tAvo varieties. The plats Avere small and Avere not 

 dui^licated, and the other conditions of the experiment Avere such as 

 jjreA'ent the draAving of satisfactory inferences. 



Methods of seeding (pp. 8. 9). — A brief preliminary report on a 

 series of experiments Avith dilferent methods of seeding Avheat. 



Field experiments mith fertilizers on, wheat (])[). 0-15). — These 

 Avere conducted on soil of the character before described, the field 

 being di^dded into tenth-acre jolats sej^arated by spaces 3 feet in 

 Avidth. The object Avas to learn Avhether fertilizers Avould be benefi- 

 cial to Avheat on this particular field, and if so, Avhat essential 

 ingredient or ingredients of the fertilizers Avere needed for this crop. 

 Phosphoric acid in superphosphate, 300 i)ounds per acre; potash in 

 sulphate (or muriate). 100 pounds per acre, and nitrogen as dried 

 blood, loO pounds per acre, Avere used singly, tAVo by tAvo, and all 

 three together, tAvo plats being left unmanured. The fertilizers Avere 

 drilled in Avith Avheat of the Penquite's Veh^et Chaff variety. 

 Throughout the fall groAvth of the crop there Avas a marked conti"ast 

 in faA^or of the plats A\hich received potash as compared AA'ith those 

 AA'hich did not. This advantage largely disappeared at the time of 



