Thus the cereal crops, when grown in rotation, yield more produce for sale in the season of growth than when grown continuously.
A reas of Cereal and Potato Crops in England, Wales and Scotland, and in Great Britain, in 1905.
In Canada and the United States this rational employment of a leguminous crop for ploughing in green is largely resorted to for the amelioration of worn-out wheat lands and other soils, the condition of which has been lowered to an unremunerative level by the repeated growth year after year of a cereal crop. The well-known paper of Lawes, Gilbert and Pugh (1861), " On the Sources of the Nitrogen of Vegetation,.
The country about Leon is considered to be one of the richest cereal-producing districts of Mexico.
At first wheat was cultivated solely in the coastal country, but experience has shown that the staple cereal can be most successfully grown over almost any portion of the arable lands within the 20 to 40 in.
The largest cereal crop is oats, of which, in 1909, 2,608,000 bushels (valued at $1,304,000) were produced on 81,00o acres.
Cereal If 1,828 2,044 cultivation occupies the foremost 599 74,209 111,943 place in area and quantity though i68 2,966 2,715 it has been on the decline since f903, still representing, however, an)56 477,191 718,221 advance on previous years.
Experiments similar to the foregoing were carried on for many years in succession at Rothamsted upon oats, and gave results which were in general accordance with those on the other cereal crops.
The fact that the growth of a leguminous crop, such as red clover, leaves the soil in a higher condition for the subsequent growth of a grain crop - that, indeed, the growth of such a leguminous crop is to a great extent equivalent to the application of a nitrogenous manure for the cereal crop - was in effect known ages ago.
The cereal crops (wheat, barley, oats, rye, maize); the cruciferous crops (turnips, cabbage, kale, rape, mustard); the solanaceous crops (potatoes); the chenopodiaceous crops (mangels, sugar-beets), and other non-leguminous crops have, so far as is known, no such power, and are therefore more or less benefited by the direct application of nitrogenous manures.
Although many different rotations of crops are practised, they may for the most part be considered as little more than local adaptations of the system of alternating root-crops and leguminous crops with cereal crops, as exemplified in the old four-course rotation - roots, barley, clover, wheat.
Clover is sown at the same time or shortly after the cereal and thus occupies the land for two years.
They are effected chiefly by some alteration in the description of the root-crop, and perhaps by the introduction of the potato crop; by growing a different cereal, or it may be more than one cereal consecutively; by the growth of some other leguminous crop than clover, since " clover-sickness " may result if that crop is grown at too short intervals, or the intermixture of grass seeds with the clover, and perhaps by the extension by one or more years of the period allotted to this member of the rotation.
Of phosphoric acid, the cereal crops take up as much as, or more than, any other crops of the rotation, excepting clover; and the greater portion thus taken up is lost to the farm in the saleable product - the grain.
Of lime, very little is taken up by the cereal crops, and by the root-crops much less than of potash; more by the leguminous than by the other crops, and, by the clover especially, sometimes much more than by all the other crops of the rotation put together.
Of nitrogen, the cereal crops take up and retain much less than any of the crops alternated with them, notwithstanding the circumstance that the cereals are very characteristically benefited by nitrogenous manures.
Under such conditions of supply, however, the root-crops, gross feeders as they are, and distributing a very large extent of fibrous feeding root within the soil, avail themselves of a much larger quantity of the nitrogen supplied than the cereal crops would do in similar circumstances.
In 1903, according to the statistics of the United States Department of Agriculture, Indian corn ranked next to fruits .(as given in the state reports), but its product as compared with that of various other states is unimportant - in 1907 it amounted to 7,017,000 bushels only; rice is the only other cereal whose yield in 1899 was greater than that of 1889, but the Florida product was surpassed (in 1899) by that of the Carolinas, Georgia, Louisiana and Texas; in 1907 the product of rice in Florida (69,000 bushels) was less than that of Texas, Louisiana, South Carolina, Arkansas and Georgia severally.
O150s swelling), a cereal (Avena sativa) belonging to the tribe Avenece of the order Gramineae or grasses.
DURRA (also written dourah, dhura, &c.; Arabic for a pearl, hence a grain of corn), a cereal grass, Sorghum vulgare, extensively cultivated in tropical and semi-tropical countries, where the grain, made into bread, forms an important article of diet.
This soil prevails throughout the southern counties and the Minnesota and Red River valleys, in which sections cereal crops predominate.
Grasshoppers (batta) are abundant, and one kind (inago), which frequent the rice-fields when the cereal is.ripening, are caught and fried in oil as ad article of food.
In 1869 a rice-famine occurred in the southern island, Kiiishiu, and while the cereal was procurable abundantly in the northern provinces, people in the south perished of hunger owing to lack of transport facilities.
The other cereal crops consist of mandua (a grass-like plant producing a coarse grain resembling rice), wheat, barley, and china, a rice-like cereal.
Suan, another rice-like cereal, not cultivated, grows spontaneously in the paddy fields.
There are large crops of oats here, too, but the culture of this cereal is quite extensive in most of the counties W.
BARLEY (Hordeum sativum), a member of the grass family, and an important cereal which belongs peculiarly to temperate regions.
Barley is the most hardy of all cereal grains, its limit of cultivation extending farther north than any other; and, at the same time, it can be profitably cultivated in sub-tropical countries.
Of its area was under cereal crops alone.
In the South artificial grassing went on for a time hand in hand with cereal-growing, which by 1876 seemed likely to develop on a considerable scale, thanks to the importation of American agricultural machinery, which the settlers were quick to utilize.
The counties where dry farming had been carried on on the largest scale were Missoula, Ravalli, Flathead, Cascade, Fergus and Gallatin, where cereal yields, though not nearly so large as from irrigated lands, were high compared with the average for the country.
The total value of cereal products in 1899 was $ 1 4,49 1, 79 6, including Indian corn valued at $10,327,723 and rice valued at $4, 0 44,4 8 9; in 1907 it was more than $27,300,000, including Indian corn valued at $19,600,000, rice valued at $7,378,000 and oats valued at $223,000.
For the rest, Syria needs irrigation; and since neither of its larger rivers, Orontes or Jordan, flowing as these do in deep beds, is of much use for this purpose, all Mid-Syria, except the lacustrine oases, is a region mainly occupied by pastures, and yielding only thin cereal crops.
Side by side with the conception of the corn spirit as an animal is the anthropomorphic view of it; and this element must have predominated in the evolution of the cereal deities like Demeter; at the same time traces of the association of gods and goddesses of corn with animal embodiments of the corn spirit are found.
Cereal pests can only be treated by general cleanliness and good farming, and of course they are largely kept down by the rotation of crops.
From Table I., showing the acreages at intervals of five years, it will be learnt that the loss fell chiefly upon the wheat crop, which at the close of the period Table - Areas of Cereal Crops in the United Kingdom - Acres.
Under this system the clover is ploughed up in the autumn, the nitrogen stored up in its roots being left in the soil for the nourishment of the cereal crop. The following summer the wheat crop is harvested, and an opportunity is afforded for extirpating weeds which in the three previous years have received little check.
But much less potash than phosphoric acid is exported in the cereal grains, much more being retained in the straw, whilst the other products of the rotation - the root and leguminous crops - which are also supposed to be retained on the farm, contain very much more potash than the cereals, and comparatively little of it is exported in meat and milk.