Field And Laboratory Studies of Soils; An Elementary Manual for Students of Agriculture
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In our eReader you can find the full English version of the book. Read Field And Laboratory Studies of Soils; An Elementary Manual for Students of Agriculture Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Field And Laboratory Studies of Soils; An Elementary Manual for Students of Agriculture
What reading level is Field And Laboratory Studies of Soils; An Elementary Manual for Students of Agriculture book?
To quickly assess the difficulty of the text, read a short excerpt:
How would the addition of organic matter affect the temperature of a soil?
Discussion: The color of soil is due to three things: (1) The color may come from the original rock particles Fig. 25. — Corn Planted the Same Day. Dark surfaces absorb more heat than light objects.
of which the soil is formed. An example of this is found in white sandy soil from clear quartz sand. (2) The color usually comes from material which sticks to the particles.
The coloring material may be either iron compounds ...or organic matter or both. Red, yellow, blue, and gray soils are colored by some form of iron, and any of these may be darkened by the presence of organic matter.
EXERCISE A-30.
TO SHOW THE EFFECT OF LIME UPON THE SOIL.
Equipment: Two tall bottles or cylinders; a sample of clay soil; a lump of lime.
Method: (1) Make up a small quantity of limewater by dissolving a lump of lime in a glass of water. Add lime until no more will dissolve.
Fill each bottle or cylinder with clear water and add to each a tablespoonful of very fine, dry, clay soil.
What to read after Field And Laboratory Studies of Soils; An Elementary Manual for Students of Agriculture?
You can find similar books in the "Read Also" column, or choose other free books by Mccall, Arthur Gillett, 1874- to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
How would the addition of organic matter affect the temperature of a soil?
Discussion: The color of soil is due to three things: (1) The color may come from the original rock particles Fig. 25. — Corn Planted the Same Day. Dark surfaces absorb more heat than light objects.
of which the soil is formed. An example of this is found in white sandy soil from clear quartz sand. (2) The color usually comes from material which sticks to the particles.
The coloring material may be either iron compounds ...or organic matter or both. Red, yellow, blue, and gray soils are colored by some form of iron, and any of these may be darkened by the presence of organic matter.
EXERCISE A-30.
TO SHOW THE EFFECT OF LIME UPON THE SOIL.
Equipment: Two tall bottles or cylinders; a sample of clay soil; a lump of lime.
Method: (1) Make up a small quantity of limewater by dissolving a lump of lime in a glass of water. Add lime until no more will dissolve.
Fill each bottle or cylinder with clear water and add to each a tablespoonful of very fine, dry, clay soil.
What to read after Field And Laboratory Studies of Soils; An Elementary Manual for Students of Agriculture?
You can find similar books in the "Read Also" column, or choose other free books by Mccall, Arthur Gillett, 1874- to read onlineMoreLess
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