 ... characteristic of a rich virgin soil, or of a permanent pasture surface soil, was a relatively high percentage of nitrogen and carbon. On the other hand, soils which have long been under arable culture are much poorer in these respects...  Journal of the Chemical Society - Page 420by Chemical Society (Great Britain) - 1885Full view - About this book
 | British Association for the Advancement of Science - 1885 - 1240 pages
...prairie soils ; and lastly, of some very rich Russian soils. From these results there could be no doubt that a characteristic of a rich virgin soil, or of...very low percentage of nitrogen and carbon, and a low relation of carbon to nitrogen. In conclusion, the authors said it had been maintained by some that... | |
 | Washintong Government Printing Office - 1885 - 746 pages
...other hand, soils which have long been under arable culture are much poorer in these respects ; while arable soils under conditions of known agricultural...only the facts adduced in this and in former papers, hut the history of agriculture throughout the world, so far as it is known, clearly shows that, pre-eminently,... | |
 | Commissioner of Agriculture - 1885 - 734 pages
...poorer in 'hew respects; while arable soils under conditions of known agricultural exhaustion, iho wa very low percentage of nitrogen and carbon, and a...adduced in this and in former papers, but the history of i^ricnlture throughout the world, so far as it is known, clearly shows that, pre-eminently, so far... | |
 | United States. Congress. House - 1885 - 778 pages
...hand, soils which have long been under arable culture are much poorer in these respects; while arabio soils under conditions of known agricultural exhaustion,...and a low proportion of carbon to nitrogen.* (19) Mot only the facts adduced in this and in former papera, but the history of agriculture throughout... | |
 | 1885 - 284 pages
...hand, soils which have long been tinder arable culture are much poorer in these respects ; while ; arable soils under conditions of known agricultural...very low percentage of nitrogen and carbon, and a low relation of carbon to nitrogen. In conclusion, the authors said that it had been maintained by some... | |
 | JOHN BENNET LAWES, AND JOSEPH HENRY GILBERT - 1893 - 694 pages
...with the soils of Greai Britain which have been under arable culture for centuries. But so long as tbe land is cheap, and labour dear, some sacrifice of...carbon, and a low proportion of carbon to nitrogen. LOXDOX : HARBISON AND SOKS, PRINTERS IJT ORDINARY TO HER MAJESTY, ST. MARTIx's AGRICULTURAL INVESTIGATION;... | |
 | Sir Joseph Henry Gilbert - 1895 - 338 pages
...relation of carbon to nitrogen. On the other hand, a soil that has been long under arable culture is much poorer in these respects, whilst arable soils...exhaustion show a very low percentage of nitrogen and of carbon and a low relation of carbon to nitrogen. It has sometimes been maintained that a soil is... | |
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