50 



HORTUS GRAMINEUS WOBURNENSIS. 385 



The same quantity of grass from a moderately rich ^ 



soil, that surrounded this luxuriant patch, afforded > 122 grains, 

 of nutritive matter - - - - ^ 



In another trial, the same species of grass, produced \ 

 on a soil entirely destitute of manure, afforded > 95 

 of nutritive matter - - - - j 



On the same soil excessively manured, the grass 

 afforded only _ _ _ . 



Common quaking-grass, on a soil moderately en- \ 

 riched, afforded fourteen ounces of grass, the given > 90 

 weight of which contained of nutritive matter j 



On a poor siliceous sandy soil incumbent on clay, it \ 

 afforded sixteen ounces of grass, the given weight > 80 

 of which afforded - - - - j 



From a soil consisting almost of pure clay, the pro-^ 

 duce of grass was twelve ounces, the usual weight n 69 

 of which afforded of nutritive matter - - i 



Tall oat-like soft-grass (Holciis avenaceus), from a ^ 

 clayey loam moderately manured, was twenty- f {^. 

 three ounces of grass, the given weight of grass ^ 

 contained - - - - - j 



From a soil almost pure clay, the produce of grass ■^ 

 was thirteen ounces, four of which afforded of > 89 

 nutritive matter - - - - 3 



From a siHceous sandy soil, with a small portion of 1 

 manure, the produce was ten ounces of grass, the > 

 given quantity afforded - - -J 



From a heath soil, the produce of grass was eight 7 

 ounces, four of which afforded of nutritive matter * 



80 

 83 



In all these trials the grasses were of the same age (two-year 

 old plants), and submitted to the chemical process at the same 

 stage of growth. 



When a water-meadow is formed, if the original turf is fine, and 

 free from the coarse inferior grasses, it will be found the most ex- 

 peditious way to obtain a good sward, to replace the turf on the 

 new-formed ridges, and afterwards to give a top-dressing with 

 compost, and then to sow a mixture of the following grass-seeds : 

 Alopecurus prateiisis, Dactylis glomerafa, Festuca piatensis, Poa 

 trivia/is, Holcus avenaceus, and a small proportion of the Agrostis 

 stolomfera latifolia. The quantity of seed per acre, must be regu- 



c c 



