 | Sir Humphry Davy, George Sinclair, John Russell Duke of Bedford - 1815 - 452 pàgines
...and much more proper as a bed for vegetable life. The great objection made by speculative chemists to paring and burning, is, that it destroys vegetable...than the vegetable fibre, from which it was produced. I have examined by a chemical analysis three specimens of ashes from different lands that had undergone... | |
 | John Ryley, John Gawthorp, John Whitley - 1818 - 308 pàgines
...in cases in which the texture of its -earthy ingredientsis permanently improved, there is mere tium a compensation for this temporary disadvantage. And...than the vegetable fibre from which it was produced." The learned Dr. (after an account of several experiments) observes that "many obscure causes have been... | |
 | John Claudius Loudon - 1822 - 1494 pàgines
...life. " The great objection made by specidativc chemists, to paring and burning, is, that it destroym vegetable and animal matter, or the manure in the...than the vegetable fibre, from which it was produced. alkali. The remainder alumina and silica. Suppose 2GGO bushels to be tbe common produce of an acre... | |
 | John Claudius Loudon - 1825 - 1250 pàgines
...than a compensation for tills temporary disadvantage. And in some soils where there is an excess pf inert vegetable matter, the destruction of it must...than the vegetable fibre from which it was produced. duced in the operation of burning. The charcoal very finely divided, and exposed on a large surface,... | |
 | Joseph Hayward - 1825 - 240 pàgines
...VEGETAt( BLE MATTER, the destruction of it must be " beneficial, and the carbonaceous matter re" maining in the ashes, may be more useful to " the crop than...the vegetable fibre from which " it was produced." As Sir Humphry very justly observes, whether the operation of burning increases or diminishes the soluble... | |
 | John Claudius Loudon - 1826 - 1252 pàgines
...vegetable and animal matter, or the manure in soil ; but in cases in which the texture of its earthly ingredients is permanently improved, there is more...than the vegetable fibre from which it was produced. 2137. Three specimens nf ashes from different lands that liad undergone paring and burning were examined... | |
 | John Claudius Loudon - 1831 - 1330 pàgines
...speculative chemists to paring and burning is, that it destroys vegetable and animal matter, or the manure in soil : but in cases in which the texture of its earthy...than the vegetable fibre from which it was produced. 2195. Three specimens of ashes from different lands which had undergone paring and burning were examin«!... | |
 | John Ayrton Paris - 1831 - 582 pàgines
...where there is an excess of inert vegetable matter, the destruction of it must be beneficial, and that the carbonaceous matter remaining in the ashes may...than the vegetable fibre from which it was produced. In this view of the subject it is evident, that all poor siliceous sands must be injured by the operation... | |
 | John Ayrton Paris - 1831 - 598 pàgines
...where there is an excess of inert vegetable matter, the destruction of it must be beneficial, and that the carbonaceous matter remaining in the ashes may...than the vegetable fibre from which it was produced. In this view of the subject it is evident, that all poor siliceous sands must be injured by the operation... | |
 | John Claudius Loudon - 1835 - 1326 pàgines
...speculative chemists to paring and burning is, that it destroys vegetable and animal matter, or the manure in soil : but in cases in which the texture of its earthy...than the vegetable fibre from which it was produced. 1874. Саше» of the effecti of burning soiL Many obscure causes have been referred to fur the purpose... | |
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... the soil ; but in cases in which the texture of its earthy ingredients is permanently improved, there is more than a compensation for this temporary disadvantage. And in some soils where there is an excess of inert vegetable matter, the destruction... 
