25 



tioii, {b) ('IVcct upon soil moisture, (c) fieiiui'ucy of cultivation, (d) Iiillinj^ 

 and level culture, (c) tilled one way i' a. cross- til led; ((J) drainage for roots 

 anil corn. Details are ^iven in notes and tables. 



Test of varieties. — Tabulated data are j;iven for 41 varieties testi-tl in 

 1889. 



Ednioiul Dent und C'ubjin (^iict'ii — botli yellow — k'd in yielil umr)ii>; the early- 

 inatiiriiif; vurieties, wliile IMoiiiit I'lolilic ami Cliaitipioii White I'eail of the white 

 variitieM, and Logan, Iiii|ieiial, anil Miiidock Improve*! of the yellow are the most 

 ])roiijif>iiij; of the mediiim-matiiriiij^. Of the late-mat m in;;, St. Charh-s White and 

 riasii Kinj; led iu the yield among the white varieties, while (loldeii lieauty was, 

 apparently, the best of the yellow. 



The varieties were classilied as early (uiaturing within 110 days), 

 uieiliuiii (IL'O days), and late (13U days). The following is a summary of 

 the results by classes : 



Summary ahoiving yield, etc., of earl ii, medium, and late-maturing varieties. 



AvtrapfoflSoaily-maturiii}; 



varit'lies 



Averajjo of 10 niodium- 



inaluriui; variotics 



Avfrage of 12 latf-maturing 



varieties 



AvtMago of all variotiea 



tef«ted 



Yield per 

 aero. 



Bush. 



47 

 53.9 

 51.4 

 50.9 



Yielil of I Foilcter 

 lodder per bushel 

 per acre, of corn. 



Pounds. Pounds. 

 2. 592 51. 6 



3,350 

 3,690 

 3,209 



01.6 

 72.1 

 63.0 



" From this table it appears that the medium-maturing varieties aver- 

 age the largest yield of coru, the late-maturing next, and early varieties 

 the smallest." 



JSimilar results obtained at tbe llliuois Station (see Bulletin No. 4 of 

 the station) are cited. 



The relation between the height of the stalk and the yield is indicated 

 ill the following summary: 



Table nhowiny relation of height of ulalk to yield of variety. 



Avorape of 5 varieties sliowinj; smallest yield. . 

 Avera;;e of 5 varieties showing largest jielil... 

 Avera};e of 5 varieties having sliortcst stalks.. 

 Avernj(u of 5 varieties baviug talli^sl slalks 



lleisht 

 of stalk. 



Feet. 



8.5 

 10.7 



8.3 

 11.0 



Hcijilit 

 of ear. 



Yield of ' Yield of l'";''!'"' 



corn per f-dder ! ,,„..J|;,., „f 



aero. I per acre. 



Feet. 

 3.9 



3.9 

 6.0 



Bushels. 

 40.1 

 (il.5 

 41.4 

 55.9 



Pounds. 

 2,012 

 3, K12 

 2.07t 

 a, 988 



corn. 



The averages of the live varieties giving the Ktnalivst yiehl audof the five varieties 

 having the shortest stalks are practically identical throiighont. t)n the other hand, 

 there is no relation between the average of the live varietif.s having the tallest stalks 

 and the live varieties giving the largest yield. 



The table points to the conclusion that the limit ofprolitable production has been 

 reached in our very early varieties with a small growth of stalk, except when grown 

 for a special purpose. 



J'J.vperimcnts tcith nutnurcs. — The object of these e.xperinients was to 

 get light on the relative value of the different kinds of farm manures 

 and the different methods of their preparation aud application. The 



