Grasses of North America ...Thorp & Godfrey, 1887 |
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多く使われている語句
abundant acre Agricultural Agrl Agrostis Alsike animals anthers better blade bloom blue grass bulliform cells bushel Caryopsis cattle cent chaff close crop culms cultivated Dactylis glomerata early empty glumes England farmer feed fertile Festuca fibers floral glume flowers forage plants grain grass land grass seeds grasses and clovers grazing green ground grow grown growth Hübn inches insects June grass larva larvæ lawn leaf leaves less manure meadow fescue meadow foxtail meadow grass moist nitrogen nutritious oats orchard grass palea Panicle Panicum perennial perennial rye-grass permanent pasture Phleum pratense plow Poa pratensis portion produce Prof red clover red top Rept roots rye grass says season sheath sheep Sheep's fescue slender soil sown species spikelet spores spring Stamens stems Stipa Timothy Trifolium usually valuable weather weeds wheat white clover winter yellow yield young
人気のある引用
309 ページ - A SMOOTH, CLOSELY SHAVEN SURFACE OF grass is by far the most essential element of beauty on the grounds of a suburban home.
305 ページ - ... In this connection, when we remember that exotic plants often thrive better than natives, we see what a vast field lies ready for experimenting with the grasses. Grasses look much alike to all who have not closely studied them ; so that farmers, in fact, none except botanists, are likely to attempt experiments. This is a strong reason why the state and national governments should assist agriculture in an undertaking which seems so fruitful of good results within a short time, at so trifling an...
333 ページ - The nitrogenous matters in the cloverremains, on their gradual decay, are finally transformed into nitrates, thus affording a continuous source of food, on which, cereal crops specially delight to grow. 9. There is strong presumptive evidence that the nitrogen which exists in the air in the shape of ammonia and nitric acid, and descends in these combinations with the rain which falls on the ground, satisfies, under ordinary circumstances, the requirements of...
333 ページ - The atmosphere thus furnishes nitrogenous food to the succeeding wheat indirectly, and, so to say, gratis. 10. Clover not only provides abundance of nitrogenous food, but delivers this food in a readily available form (as nitrates) more gradually and continuously, and consequently with more certainty of a good result, than such food can be applied to the land in the shape of nitrogenous spring top-dressings.
301 ページ - A dozen sorts, probably, cover nineteen-twentieths of all the cultivated meadowland from Maine to Texas. It can hardly be supposed that so limited a number meets, in the best manner possible, all the wants of so great a variety of soil and climate. This is one of the pressing wants of our agriculture. Experimental farms are needed where the value of new grasses and kindred questions can be determined. A single new grass, that would add but an extra yield of a hundred pounds to the acre, would add...
68 ページ - Here I come creeping, smiling everywhere; All round the open door, Where sit the aged poor; Here where the children play, In the bright and merry May, I come creeping, creeping everywhere.
355 ページ - When properly managed, the number of cattle which can be kept in good condition on an acre of Lucerne, during the whole season, exceeds belief. It is no sooner mown than it pushes out fresh shoots, and wonderful as the growth of clover sometimes is, in a field that has been lately mown, that of Lucerne is far more rapid. Lucerne will last for many years, shooting its roots — tough and fibrous almost as those of liquorice — downwards for nourishment, till they are altogether...
283 ページ - ... and brings forth a luxuriant crop in early spring, just when it is most wanted, while the other meadows are still bare and brown. It is a cheerful sight to see the wild birds haunting these green spots among the hoar-frost at Christmas; or the lambs, with their mothers, folded on them in March. A water-meadow is the triumph of agricultural art, changing, as it does, the very seasons...
135 ページ - Whoever has limestone land has blue grass ; whoever has blue grass has the basis of all agricultural prosperity ; and that man, if he have not the finest horses, cattle, and sheep, has no one to blame but himself. Others, in other circumstances, may do well. He can hardly avoid doing well, if he will try.
45 ページ - It is hardly an exaggeration to say that the tip of the radicle thus endowed, and having the power of directing the movements of the adjoining parts, acts like the brain of one of the lower animals ; the brain being seated within the anterior end of the body, receiving impressions from the sense organs, and directing the several movements.