Elements of Agriculture PDF Download
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Author: George Frederick Warren
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 500
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Author: George Frederick Warren
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 500
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: William Fream
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 470
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This is the first printing of 1,250 copies, published January 1, 1982, with a second edition of 5,000 copies sold out before the end of January; a third edition of 5,000 copies was published in February of the same year - source: preface to the fourth edition.
Author: Sir Humphry Davy
Publisher:
ISBN:
Category : Agricultural chemistry
Languages : en
Pages : 452
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Author: George Frederick Warren
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 549
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Author: David LOW (Professor of Agriculture in the University of Edinburgh.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 724
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Author: George Edwin Waring
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 314
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Author: George Waring
Publisher: CreateSpace
ISBN: 9781502945471
Category :
Languages : en
Pages : 118
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What is the object of cultivating the soil? What is necessary in order to cultivate with economy? Are plants created from nothing? The object of cultivating the soil is to raise from it a crop of plants. In order to cultivate with economy, we must raise the largest possible quantity with the least expense, and without permanent injury to the soil. Before this can be done we must study the character of plants, and learn their exact composition. They are not created by a mysterious power, they are merely made up of matters already in existence. They take up water containing food and other matters, and discharge from their roots those substances that are not required for their growth. It is necessary for us to know what kind of matter is required as food for the plant, and where this is to be obtained, which we can learn only through such means as shall separate the elements of which plants are composed; in other words, we must take them apart, and examine the different pieces of which they are formed.
Author: Thomas Anderson
Publisher:
ISBN:
Category : Agricultural chemistry
Languages : en
Pages : 330
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Author: Sir Humphry Davy
Publisher:
ISBN:
Category : Agricultural chemistry
Languages : en
Pages : 444
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