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 27
... fertilizing matters ,. will be fully considered in the section on manures . After ammonia has entered the plant it may be decomposed , its hydrogen sent off , and its nitrogen retained to answer the purposes of growth . The changes ...
... fertilizing matters ,. will be fully considered in the section on manures . After ammonia has entered the plant it may be decomposed , its hydrogen sent off , and its nitrogen retained to answer the purposes of growth . The changes ...
Seite 33
... fertilizing gases . In nature it usually exists in the form of car- bonate of lime : that is , as marble , limestone ... matter . Here it must remain until the plant is de- How is caustic lime made ? How much carbonic acid is thus ...
... fertilizing gases . In nature it usually exists in the form of car- bonate of lime : that is , as marble , limestone ... matter . Here it must remain until the plant is de- How is caustic lime made ? How much carbonic acid is thus ...
Seite 59
... fertilizer , and the latter poisons plants . Oxide of manganese is often absent from the ashes of our cultivated ... matter , and their bodies are obtained directly or indirectly from plants . What is the difference between peroxide and ...
... fertilizer , and the latter poisons plants . Oxide of manganese is often absent from the ashes of our cultivated ... matter , and their bodies are obtained directly or indirectly from plants . What is the difference between peroxide and ...
Seite 73
... matter , or with a larger proportion of clay ( alumina ) , and less sand ( silica ) . These affect its mechanical ... fertilizing ingredients is required ? If the soil represented in the third column contained all the in- gredients ...
... matter , or with a larger proportion of clay ( alumina ) , and less sand ( silica ) . These affect its mechanical ... fertilizing ingredients is required ? If the soil represented in the third column contained all the in- gredients ...
Seite 79
... fertilizing matters . There is a simple experiment by which this power can be shown . Ex . Take two barrels of pure beach sand , and mix with the sand in one barrel a few handfuls of charcoal dust , leaving that in the other pure . Pour ...
... fertilizing matters . There is a simple experiment by which this power can be shown . Ex . Take two barrels of pure beach sand , and mix with the sand in one barrel a few handfuls of charcoal dust , leaving that in the other pure . Pour ...
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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.