Science in Farming. a Textbook On the Principles of Agriculture, Including a Treatise On Agricultural Chemistry
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In our eReader you can find the full English version of the book. Read Science in Farming. a Textbook On the Principles of Agriculture, Including a Treatise On Agricultural Chemistry 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 Science in Farming. a Textbook On the Principles of Agriculture, Including a Treatise On Agricultural Chemistry
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This soil seems of almost inexhaustible fertility. It is moist a few Inches beneath the surface during the dryest weather, 86 SCIENCE IN FARMING.
and can be worked immediately after the heaviest rain.
§ 6. Valne of Sand, Clay and Humus.
169. Sand. — The value of sand in the soil depends on the kind of rock from which it has been reduced, and the size of its particles. White quartz sand con- tains no plant food, and soils containing it in large quantity are not usually fertile.
To determine the ...character of the sand, mix a por- tion of the soil with a large amount of water. After allowing time for the sand to settle, pour off the wa- ter, which will contain most of the clay and humus.
By repeatedly washing the sand which remains, it may be obtained pure. If it is white, " sharp" and coarse, it is of little value in the soil. Sand from granite or limestone contains a considerable amount of plant food, which, under the influence of air and cultivation, will be slowly given up in avail- able form for the plant.
What to read after Science in Farming. a Textbook On the Principles of Agriculture, Including a Treatise On Agricultural Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by Thompson, Ralph Seymour. [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
This soil seems of almost inexhaustible fertility. It is moist a few Inches beneath the surface during the dryest weather, 86 SCIENCE IN FARMING.
and can be worked immediately after the heaviest rain.
§ 6. Valne of Sand, Clay and Humus.
169. Sand. — The value of sand in the soil depends on the kind of rock from which it has been reduced, and the size of its particles. White quartz sand con- tains no plant food, and soils containing it in large quantity are not usually fertile.
To determine the ...character of the sand, mix a por- tion of the soil with a large amount of water. After allowing time for the sand to settle, pour off the wa- ter, which will contain most of the clay and humus.
By repeatedly washing the sand which remains, it may be obtained pure. If it is white, " sharp" and coarse, it is of little value in the soil. Sand from granite or limestone contains a considerable amount of plant food, which, under the influence of air and cultivation, will be slowly given up in avail- able form for the plant.
What to read after Science in Farming. a Textbook On the Principles of Agriculture, Including a Treatise On Agricultural Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by Thompson, Ralph Seymour. [from Old Catalog] to read onlineMoreLess
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