The Gardeners' Chronicle: A Weekly Illustrated Journal of Horticulture and Allied SubjectsGardeners Chronicle, 1891 |
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Stranica 400 - ... obtained at Rothamsted and by others with leguminous plants, are consistent with well established facts of agricultural production, and with the nitrogen statistics of soils and crops, and serve, with them, to aid the solution of long recognised problems in connection with the growth of Leguminous crops. But, whether or not it may eventually be established that nitrogen is fixed by microbes within the soil independently of leguminous growth, there is evidence that in soils and subsoils containing...
Stranica 400 - ... subsoils containing organic nitrogen, lower organisms may serve the higher plants by taking up or attacking and bringing into a more readily available condition combined nitrogen not otherwise, or only very slowly, available for the higher plants. For example, it is probable that fungi generally derive nitrogen from organic nitrogen ; and in the case of those of fairy rings there can be little doubt that they take up from the soil organic nitrogen which is not available to the meadow plants,...
Stranica 400 - Leguminosce ; but whilst few now assume that the higher chlorophyllous plants directly assimilate free nitrogen, it is nevertheless supposed to be brought under contribution in various ways; but especially by being brought into combination under the influence of micro-organisms, or of other low forms, either within the soil itself, or in symbiotic growth with a higher plant. Of all the recent results bearing upon the subject, those of Hellriegel and...
Stranica 400 - SUMMARY AND CONCLUSION. There is no evidence that the leguminous plant itself assimilates free nitrogen. The evidence at present at command, is in favour of the supposition that the observed gain is due to the fixation of nitrogen in the development of the lower organisms in the root-nodules, and that the nitrogenous compounds produced are taken up and utilised by the leguminous plant.
Stranica 45 - At first they might be seen advancing high in the air, like a dark cloud, which, in an instant, as if by magic, became almost invisible, the whole body, by some mysterious watchword, or signal, changing their course, and presenting their wings to view edgeways, instead of exposing, as before, their full expanded spread. Again, in another moment, the cloud might be seen descending in a graceful sweep, so as almost to brush the earth as they glanced along. Then once more they were seen spiring in wide...
Stranica 136 - The best thanks of the Society are due to all those who, either at home or abroad, have so kindly and liberally presented books to the Library or plants or seeds to the Gardens. A list of the donors has been prepared, and will appear in the next number of the Journal.
Stranica 400 - ... found on the roots of various leguminous plants growing among the mixed herbage of grass-land, and also on those of others growing on arable land, in the ordinary course of agriculture. There can be little doubt that, when such plants are growing in soil and subsoil containing an abundance of combined...
Stranica 52 - Act. (2.) Every person who, after the expiration of twelve months from the commencement of this Act, uses, or has in his possession for use for trade any weighing instrument not stamped as required by this Act, shall be liable to a fine not exceeding two pounds, or in the case of a second offence five pounds.
Stranica 25 - ... when the windhover passes to and fro; but they become terribly agitated on the approach of the sparrowhawk. I often see this bold destroyer glide in lowly flight across the lake, and strike a starling and carry it off, amid the shrieks and uproar of the inhabitants of the tower and sycamore trees. The starling shall always have a friend in me. I admire it for its fine shape and lovely plumage; I protect it for its wild and varied song ; and I defend it for its innocence.
Stranica 136 - Society are due to all those who, either at home or abroad, bave so kindly and liberally presented books to the Library or plants or seeds to the Gardens. A list of the donors has been prepared, and will be found in the Society's " Journal,