The Elements of Agriculture: A Book for Young Farmers, with Questions Prepared for the Use of SchoolsD. Appleton, 1854 - 288 Seiten |
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Seite 15
... decay , and decomposition of orga- nized bodies ( those which have possessed animal or vegetable life , that is , organic matter ) , and others also , in the breathing of animals . Experiments have proved that if the atmosphere ...
... decay , and decomposition of orga- nized bodies ( those which have possessed animal or vegetable life , that is , organic matter ) , and others also , in the breathing of animals . Experiments have proved that if the atmosphere ...
Seite 19
... decay , as this is simply a slower burning and produces the same results . The respiration ( or breathing ) of animals is simply the union of the carbon of the blood with the oxygen of the air drawn into the lungs , and their breath ...
... decay , as this is simply a slower burning and produces the same results . The respiration ( or breathing ) of animals is simply the union of the carbon of the blood with the oxygen of the air drawn into the lungs , and their breath ...
Seite 20
... decay . Thus we see that there is a continual change from the carbon of plants to air , and from air back to plants , or through them to animals . As each dollar in gold that is received into a country permanently increases its amount ...
... decay . Thus we see that there is a continual change from the carbon of plants to air , and from air back to plants , or through them to animals . As each dollar in gold that is received into a country permanently increases its amount ...
Seite 21
... which they become coal . How does the burning of coal benefit vegetation ? Is carbon ever permanent in any of its forms ? What enables it to change its condition ? main unaltered , but when the wood decays , or THE PLANT . 21.
... which they become coal . How does the burning of coal benefit vegetation ? Is carbon ever permanent in any of its forms ? What enables it to change its condition ? main unaltered , but when the wood decays , or THE PLANT . 21.
Seite 22
... decays , or is burned , it immediately takes the form of carbonic acid , and mingles with the atmosphere ready to be again taken up by plants , and have its carbon de- posited in the form of vegetable matter . The blood of animals ...
... decays , or is burned , it immediately takes the form of carbonic acid , and mingles with the atmosphere ready to be again taken up by plants , and have its carbon de- posited in the form of vegetable matter . The blood of animals ...
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absorbent agricultural alkali ammonia amount analysis animal manures applied ashes become bones burning bushels carbonic acid causes CHAPTER character charcoal chemical chloride of lime chlorine clay compost compound condition consists constituents cultivation decay decomposed decomposition deficient deposited depth drains dung earth effect escape evaporation excrements farmer farming fertilizing gases fertilizing matter grain growth guano heap heat hydrogen important improved inches ingredients inorganic kinds land large quantities leaching lime and salt liquid manure magnesia Mapes mechanical mechanical character mineral manures mineral matter moisture mulching necessary night soil nitric acid nitrogen nure obtain organic manures organic matter oxygen particles phosphate of lime phosphoric acid plaster potash prepared muck prevent produce pulverized rains removed render roots of plants salt mixture sand silica slaked slaked lime soda soils contain soluble straw sub-soil plow substances sufficient sulphuric acid super-phosphate of lime supply surface soil tain tion under-draining valuable weeds
Beliebte Passagen
Seite 148 - It is not necessary that*-4his and the foregoing table should be learned by the scholar, but they will be found valuable for reference by the farmer. MANURES. Example 1. — Required, the number of loads necessary to manure an acre of ground, dividing each load into six heaps, and placing them at a distance of 44 yards from each other ? The answer by the table is 39f . Example 2.
Seite 235 - ... the sub-soil plow, by passing through it, opens a passage for water, and often affords a sufficient drainage. If plants will grow better on a soil six inches deep than on one of three inches, there is no reason why they should not be benefited in proportion, by disturbing the soil to the whole depth to which roots will travel—even to a depth of two feet.