. The great Northwest : a guide-book and itinerary for the use of tourists and travellers over the lines of the Northern Pacific Railroad, the Oregon Railway and Navigation Company and the Oregon and California Railroad : containing descriptions of states, territories, cities, towns, and places along the routes of these allied systems of transportation, and embracing facts relating to the history, resources, population, products, and natural features of the great Northwest . asses differ very little in the various species,so that they result in no great difference in the fertility of the prair
. The great Northwest : a guide-book and itinerary for the use of tourists and travellers over the lines of the Northern Pacific Railroad, the Oregon Railway and Navigation Company and the Oregon and California Railroad : containing descriptions of states, territories, cities, towns, and places along the routes of these allied systems of transportation, and embracing facts relating to the history, resources, population, products, and natural features of the great Northwest . asses differ very little in the various species,so that they result in no great difference in the fertility of the prairie crop of dry grass, weighing 2,000 pounds, yields od an average 130pounds of ashes, which contain: potash, 34; soda, ; magnesia, ; lime,; phosphoric acid, ; sulphuric acid, ; silica, ; chlorides, ,and sulphur, This would be the average contents of ash constituentsin the prairie soil, giving all the substances which the cereals require. When a crop of wheat or corn is taken from that soil, provided thestraw is returned to the soil in any shape whatever, the crop consumes onlya portion of the plant constituents of a single hay crop, with the exceptionof the phosphoric acid, which is entirely extracted by a wheat crop fromthe ashes of a hay crop. For example, 1,000 pounds of wheat yield of ashes, which contain potash. soda, magnesia, lime, phosphoric acid, sulphuric acid, silica and Prairie Soil and its Constituents. 91 According to the above, one layer of the ashes of hay, of the thick-ness of finest paper, spread over an acre, would produce a wheat crop oftwenty bushels. Therefore, a thickness of one inch of prairie soil wouldfurnish 500 wheat crops. Speculations on paper do not always agree,however, with practical experience. So much is sure, nevertheless, thatthe prairie soil is exceedingly rich in the ash constituents of plants, and ittwill serve for a long time for the production of cer
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1883
