ch. xi] Effects of Manures 187 



Foxtail, Cock's-foot, Rye-grasses, Meadow Fescue, and Timothy. 

 At Rothamsted Soft Brome and Yorkshire Fog were also greatly 

 encouraged, but this was on land mown every year. 



Farmyard manure generally encourages the growth of the more 

 vigorous grasses such as Cock's-foot, Rough-stalked Meadow- 

 grass, Foxtail, Tall Oat-grass, Meadow Fescue and Rye-grasses. 

 Leguminous plants are usually reduced. 



It is unfortunately impossible to give any fuller reliable infor- 

 mation regarding the precise effects of fertilisers upon the different 

 species, and our knowledge must remain incomplete on these points 

 until definite researches have been carried out. 



