716 



EXPERIMENT STATION RECORD. 



"RongJily spoakiiig, wo htg ])i'obably justified iu assnniiin;- that for equal weiglits 

 of cro]) tlio cost of replaciug the miueral soil iugredieuts by the purchase of fertili- 

 zers when necessary, will be about the same for both crops (cauaigre and sugar 

 beets); while as regards nitrogen, our determination sliows that the cauaigre draws 

 nearly twice as heavily as the beet, so that a crop of 10 tons of fresh roots Avill take 

 out of the soil nearly 100 lbs. of nitrogen per acre. In regular culture it should, 

 thereibre, probably be alternated with leguminous crops, that enrich the soil in 

 nitrogen." 



Corn as a silage crop, W. H. Jordan {Maine 8ta. Rpt. 1893, pp. 

 57-63). — Tliis article contains tlie results of a comi^arison of silage 

 made from Southern corn and Maine field corn, previously published as 

 Bulletin 11 of the station (E. S. K., 6, p. 34), and a study of the ripen- 

 ing of silage corn. On each of 10 twentieth-acre ])lats one fifth of the 

 area of corn was cut at 5 dift'ereut dates. The following table gives 

 the yield of green corn and of dry matter resulting from harvesting 

 the crop at different stages of growth : 



Yield of green corn and dry matter in an acre of corn at different stages of growth. 



The following table gives the amounts of the different nutrients con- 

 tained in the corn crop at different dates: 



Yield per acreof different classes of nutrients of the corn plant at different stages of growth. 



' The manner of drying the sample taken from the lot cut at this period may have caused a loss of 

 sugar. 



"Two facts are clearly shown : First, that the later growth of dry matter in the corn 

 plant is made up chiefly of non-nitrogenous compounds ; aud second, a large percent- 

 age of these compounds consisted of sugars and starch, substances that are the best 

 of their class for the jiurposes of animal nutrition." 



Variety tests of oats, H. J. Waters and R. J. Weld [Pennsylvania 

 Sta. Bpt. 1893, pp. 116, 117). — Fifteen varieties were tested in 1893 on 

 dujilicate twentieth-acre x^lats. Tabulated data give yields for each 



