The Grasses of ScotlandWilliam Balckwood and Sons, 1842 - 152 páginas |
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Términos y frases comunes
Agrostis Aira Alopecurus Alopecurus alpinus awn arising awned florets awnless florets base bearing four Braid Hill Bromus Bromus mollis Bromus racemosus Bucetum calyx creeping crowned dorsal rib equal in length Festuca fibrous five leaves Flowers footstalks frequent grass green marginal ribs Greville hairs hairy half the length Hooker Inflorescence Inner palea inner surface Joints smooth keel Koch lanceolate Lapland large glume lateral ribs leaves with smooth ligule limit of altitude Lindley linear lower floret lowermost floret minutely fringed minutely toothed North Queensferry Norway outer palea outer palea five-ribbed ovate palea of lowermost paleæ Fig Panicle erect Parnell MD Pentland Hills Plate Poa nemoralis Poa pratensis pratense Printed by J.Gellatly racemed rachis ribs minutely ripens its seed root is perennial rough awn Scotland second week seven-ribbed short slender smooth striated sheaths Specific Characters.-Florets Spike spikelets Stem erect summit Sweden third week upper leaf upper sheath longer webbed week of July whereas
Pasajes populares
Página 143 - ... scale — the merits of which seem to have been first accurately pointed out by the late excellent Mr. Curtis in his several works on grasses. There has been much difference of opinion respecting the merits and comparative value of rye-grass. It produces an abundance of seed, which is easily collected and readily vegetates on most kinds of soil under .circumstances of different management; it soon arrives at perfection, and produces in its first years of growth a good supply of early herbage,...
Página 24 - ... those that are deep and moist. The chief property that gives merit to this grass is its early growth, though, in this respect, it is inferior to several other species which are later in flowering. It thrives best when combined with many different species, and is therefore a true permanent pasture grass. It does not appear to be particularly liked by cattle, though eaten in pastures in common with others. Mr. Grant, of Leighton, laid down a field of considerable extent, one-half of which vras...
Página 125 - The grass of the seed-crop, and that of the latter-math, are of equal value. The downy hairs which cover the surface of the leaves of this grass, when growing on poor light soils, almost entirely disappear when it is cultivated on a richer soil. It possesses several good qualities which recommend it to particular notice ; it is hardy, early, and more productive than many others which affect similar soils and situations. Its growth after being cropped...
Página 78 - ... yearly diminishes, and ultimately dies off, not unfrequently in the space of four or five years. Its produce is always much greater when combined with other grasses, than when cultivated by itself; with a proper admixture it will nearly double its produce, though on the same soil, so much it delights in shelter.
Página 77 - ... and sheep have for it, are merits which distinguish it as one of the most valuable of those grasses which affect moist rich soils and sheltered situations : but on dry exposed situations it is altogether inconsiderable ; it yearly diminishes, and ultimately dies off, not unfrequently in the space of four or five years. Its pro K fst ii »• ;i 1...
Página 143 - There has been much difference of opinion respecting the merits and comparative value of rye-grass. It produces an abundance of seed, which is easily collected and readily vegetates on most kinds of soil under circumstances of different management ; it soon arrives at perfection, and produces in its first years of growth a good supply of early herbage, which is much liked by cattle. These merits have, no doubt, upheld it till the present day in practice, and will probably, for some time to come,...
Página 24 - ... 4. The proportional value which the grass of the lattermath bears to that of the seed crop, is nearly as 13 to 9 ; and the proportional value or nourishment contained in the autumn grass, exceeds that of the first grass of the spring, as 9 to...
Página 143 - These merits have, no doubt, upheld it till the present day in practice, and will probably, for some time to come, continue it a favourite grass with many farmers. But the latter-math of rye-grass is very inconsiderable, and the plant impoverishes the soil in a high degree if the culms, which are invariably left untouched by cattle, are not cut before the seed advances towards perfection. When this is neglected, the field after midsummer exhibits only a brown surface of withered straws.
Página 132 - It springs rather early, and the produce is remarkably fine and succulent. It withstands the effects of severe dry weather in rich natural pastures better than many other grasses. This property, joined to its merits above mentioned, entitle it to a place in the composition of the best pastures...
Página 24 - ... greater proportion than in many other grasses. Its merits,, however, in respect to early growth, continuing to vegetate and throw up flowering stalks till the end of autumn, and its hardy and permanent nature, sufficiently uphold its claim to a place in the composition of all permanent pastures. The superior nutritive qualities of its lattermath, are a great recommendation for the purpose of grazing, the stalks being of but little utility, as they are generally left untouched by the cattle, provided...