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 5
... consists of many parts , each part being itself composed of atoms too minute to be detected by our observation . The earth itself , in all its solidity and life , consists entirely of atoms too small to be perceived by the naked eye ,
... consists of many parts , each part being itself composed of atoms too minute to be detected by our observation . The earth itself , in all its solidity and life , consists entirely of atoms too small to be perceived by the naked eye ,
Seite 13
... consists of one solid substance , carbon ( or charcoal ) , and three gases , oxygen , hydrogen and nitrogen . These ... consist ? How large a part of plants is carbon usually about one half of their dry weight . The THE PLANT . 13.
... consists of one solid substance , carbon ( or charcoal ) , and three gases , oxygen , hydrogen and nitrogen . These ... consist ? How large a part of plants is carbon usually about one half of their dry weight . The THE PLANT . 13.
Seite 14
... consists of the three gases named above . By the word gas , we mean air . Oxygen , hydrogen and nitrogen , when pure , are al- ways in the form of air . Oxygen has the power of uniting with many substances , forming compounds which are ...
... consists of the three gases named above . By the word gas , we mean air . Oxygen , hydrogen and nitrogen , when pure , are al- ways in the form of air . Oxygen has the power of uniting with many substances , forming compounds which are ...
Seite 17
... consists of carbon and oxygen , while it supplies only carbon to the plant . It is therefore necessary that it be divided , or decomposed , and that the carbon be re- tained while the oxygen is sent off again into the atmosphere , to ...
... consists of carbon and oxygen , while it supplies only carbon to the plant . It is therefore necessary that it be divided , or decomposed , and that the carbon be re- tained while the oxygen is sent off again into the atmosphere , to ...
Seite 25
... consist of compounds containing nitrogen . When these com- pounds undergo combustion , or are in any manner decomposed , the nitrogen which they contain usually unites with hydrogen , and forms ammonia . In con- sequence of this the ...
... consist of compounds containing nitrogen . When these com- pounds undergo combustion , or are in any manner decomposed , the nitrogen which they contain usually unites with hydrogen , and forms ammonia . In con- sequence of this the ...
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Häufige Begriffe und Wortgruppen
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.