The School of Chemical Manures; Or, Elementary Principles in the Use of Fertilizing Agents
The School of Chemical Manures; Or, Elementary Principles in the Use of Fertilizing Agents
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Digitized by Google 92 SCHOOL OF CHEMICAL MANURES.
EXPERIMENTAL FIELD FOR A PRIMARY SCHOOL.
Culture of Wheat, The field will be disposed as follows: No. 1.
Complete manure.
No. 2.
Mineral manure.
No. 4, Soil without any manure No. 8.
Nitrogenized manure.
The area of each plot is about 25 square yards.
What is the meaning of these four plots?
Plot No. 1 will demonstrate that splendid crops are obtained with the complete manure.
Plot No. 2 will show that the mixture of the three mineral substance...s, phosphate of lime, potassa, and lime, gives but meagre re- sults, unless the soil be naturally provided with nitrogen.
Plot No. 3 will prove that nitrogenized mat- ters alone are more powerful than the three Digitized by Google EXPERIMENTAL FIELDS.
93 mineral substances of No. 2, without being equal in yield to that obtained with the com- plete manure.
Plot No. 4, without any manure, will deter- mine the natural fertility of the soil.
With another are of ground, divided as fol- lows, we may cultivate peas or horse-beans: — No.
What to read after The School of Chemical Manures; Or, Elementary Principles in the Use of Fertilizing Agents?
You can find similar books in the "Read Also" column, or choose other free books by Georges Ville to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Digitized by Google 92 SCHOOL OF CHEMICAL MANURES.
EXPERIMENTAL FIELD FOR A PRIMARY SCHOOL.
Culture of Wheat, The field will be disposed as follows: No. 1.
Complete manure.
No. 2.
Mineral manure.
No. 4, Soil without any manure No. 8.
Nitrogenized manure.
The area of each plot is about 25 square yards.
What is the meaning of these four plots?
Plot No. 1 will demonstrate that splendid crops are obtained with the complete manure.
Plot No. 2 will show that the mixture of the three mineral substance...s, phosphate of lime, potassa, and lime, gives but meagre re- sults, unless the soil be naturally provided with nitrogen.
Plot No. 3 will prove that nitrogenized mat- ters alone are more powerful than the three Digitized by Google EXPERIMENTAL FIELDS.
93 mineral substances of No. 2, without being equal in yield to that obtained with the com- plete manure.
Plot No. 4, without any manure, will deter- mine the natural fertility of the soil.
With another are of ground, divided as fol- lows, we may cultivate peas or horse-beans: — No.
What to read after The School of Chemical Manures; Or, Elementary Principles in the Use of Fertilizing Agents?
You can find similar books in the "Read Also" column, or choose other free books by Georges Ville to read onlineMoreLess
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