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 13
... charcoal ) , and three gases , oxygen , hydrogen and nitrogen . These four kinds of matter constitute nearly the whole of most plants , the ashes forming often less than one part in one hundred of their dry weight . When wood is burned ...
... charcoal ) , and three gases , oxygen , hydrogen and nitrogen . These four kinds of matter constitute nearly the whole of most plants , the ashes forming often less than one part in one hundred of their dry weight . When wood is burned ...
Seite 22
... charcoal , cork the ends of the tube tightly , and pass through the corks the wires of an electrical battery . By passing a stream of electri- cal fluid over the charcoal it may be ignited , when it will burn with great brilliancy In ...
... charcoal , cork the ends of the tube tightly , and pass through the corks the wires of an electrical battery . By passing a stream of electri- cal fluid over the charcoal it may be ignited , when it will burn with great brilliancy In ...
Seite 23
... charcoal of the same weight as the piece introduced . In this experiment we have changed carbon from its solid form to an invisible gas and back again to a solid , thus fully representing the continual changes of this substance in the ...
... charcoal of the same weight as the piece introduced . In this experiment we have changed carbon from its solid form to an invisible gas and back again to a solid , thus fully representing the continual changes of this substance in the ...
Seite 57
... charcoal ) . The inorganic matter of plants consists of potash , soda , lime , magnesia , sulphuric acid , phosphoric acid , chlorine , silica , oxide of iron , and oxide of manganese . Plants obtain their organic food as follows ...
... charcoal ) . The inorganic matter of plants consists of potash , soda , lime , magnesia , sulphuric acid , phosphoric acid , chlorine , silica , oxide of iron , and oxide of manganese . Plants obtain their organic food as follows ...
Seite 78
... charcoal ) , in which form it will always remain , without loss , unless driven out by fire . If a bushel of charcoal be mixed with the soil now , it will be the same bushel of charcoal , neither more nor less , a thousand years hence ...
... charcoal ) , in which form it will always remain , without loss , unless driven out by fire . If a bushel of charcoal be mixed with the soil now , it will be the same bushel of charcoal , neither more nor less , a thousand years hence ...
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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.