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 32
... rock salt . When combined with sulphuric acid it forms sulphate of soda or Glau- ber's salts . In combination with carbonic acid , as carbonate of soda , it forms the common washing soda of the shops . It is often necessary to render ...
... rock salt . When combined with sulphuric acid it forms sulphate of soda or Glau- ber's salts . In combination with carbonic acid , as carbonate of soda , it forms the common washing soda of the shops . It is often necessary to render ...
Seite 34
... rocks ( that class called dolomites ) , and the injurious effects of some kinds of lime , as well as the barrenness of soils made from dolomites , may be attributed entirely to the fact that they contain too much magnesia . ACIDS ...
... rocks ( that class called dolomites ) , and the injurious effects of some kinds of lime , as well as the barrenness of soils made from dolomites , may be attributed entirely to the fact that they contain too much magnesia . ACIDS ...
Seite 67
... rocks . Some rocks ( such as the slates in Central New York ) decompose , and crumble ra- pidly on being exposed to the weather ; while granite , marble , and other rocks will last for a long time without perceptible change . The causes ...
... rocks . Some rocks ( such as the slates in Central New York ) decompose , and crumble ra- pidly on being exposed to the weather ; while granite , marble , and other rocks will last for a long time without perceptible change . The causes ...
Seite 68
... rocks or stones , it se- parates their particles and causes them to crumble . The same rule holds true with regard ... rocks , and cause them * The spaces between the particles . What is the effect of water on certain rocks ? How are ...
... rocks or stones , it se- parates their particles and causes them to crumble . The same rule holds true with regard ... rocks , and cause them * The spaces between the particles . What is the effect of water on certain rocks ? How are ...
Seite 69
... rock . Some rocks contain sulphur , phosphorus , etc. , and these may , perhaps , be considered as organic matter . What is the similarity between the composition of soils and the rocks from which they were formed ? What does feldspar rock ...
... rock . Some rocks contain sulphur , phosphorus , etc. , and these may , perhaps , be considered as organic matter . What is the similarity between the composition of soils and the rocks from which they were formed ? What does feldspar rock ...
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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.