435 



In tbe third test a plot of average elevation was chosen, this being cov- 

 ered with grass with admixture of Swedish clover. The soil was somewhat 

 humous, but otherwise the same as that of the other plots. The product 

 amounted to 12J pounds per 18 square feet, with 320 plants per square 

 foot, the latter being distributed as follows : 



Arrhenatherum elatius 



Lolium perenuB 



Phleum pratense 



LoliuiQ perenne, fine .. 



Festuca pratensis 



Poa pratensis 



Holcus lunatns 



Dactylus glonierata — 

 Alopecnnus gericulatus 

 Alopecuuus pi-atensis.. 

 Trefolium hvbridum . . 



7; c ^s 



103 



42 



40 



40 



29 



21 



19 



9 



7 



5 



5 



Length of plants. 



Longest. Shortest 



92.5 

 92.3 

 65.0 

 65.6 

 86.0 

 98.5 

 103, 

 68.5 

 84.0 



40.4 

 17.5 

 49.3 

 23.5 

 52.0 

 62.0 

 36.0 

 19.0 

 52.0 



One hundred parts of this mixture contain — 



Nitrogenous matter ', non-nitrogenous matter 

 Eaw fiber : entire nutriment ri 1 I 1.81. 



3.4. 



The number of plants, in case of grasses, is naturally greater for a 

 given area than in case of fodder- j)lants, since the latter require more 

 space for their growth ; but upon comparison of the analyses accom- 

 panying the different tests, it will be found that the percentage of nitro- 

 genous nutriment is not only higher, but that the ratio between the ni- 

 trogenous and non-nitrogenous material is lower and more favorable. 

 From a Prussian acre (0.6 acre) was produced, in test I, about 14,400 

 pounds of grass, containing 371.5 pounds nitrogenous matter; while in 

 tests II and III were collected 16,200 pounds, containing 484.38 pounds 

 nitrogenous matter, and 18,000 pounds containing 576 pounds nitrogen- 

 ous matter. The authors are in favor, also, of cultivation of lucerne and 

 clover, since their exhaustive effects are overbalanced by other effects 

 more favorable. 



The meadow which had been left in the natural condition was adja- 

 cent to that to which the Peterson method had been applied, and although 

 the grass was overripe, which favored to a certain extent the method in 

 question, yet the differences are quite marked. The soil in the latter 

 case is a heavy loam, with a somewhat loose subsoil. The vegetation con- 



