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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 788
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 788
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Book Description
Author: Chris Lauriths Christensen
Publisher:
ISBN:
Category : Agricultural colleges
Languages : en
Pages : 750
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Book Description
This publication provides a section which gives a brief description of the various offices within the United States Department of Agriculture and their functions, followed by a directory, and an Index of Names.
Author: United States. Department of Agriculture. Division of Publications
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 464
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 860
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Author: Emma Beatrice Hawks
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
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Book Description
Author: Mabel Hunt Doyle
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 192
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 322
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Author: United States. Department of Agriculture. Division of Publications
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 192
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Book Description
Author: M. M. Kononova
Publisher: Elsevier
ISBN: 1483185680
Category : Technology & Engineering
Languages : en
Pages : 545
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Book Description
Soil Organic Matter: Its Nature, Its Role in Soil Formation and in Soil Fertility focuses on the contributions of soil organic matter in soil formation and fertility, including weathering, decomposition, and synthesis of humus substances. The publication first elaborates on the main stages in the history of soil humus study and ideas on the composition of soil organic matter and nature of humus substances. Discussions focus on organic substances of individual nature, strictly humus substances in soil organic matter, and humus substances as a complex of high molecular- weight compounds. The text then examines the biochemistry of humus formation, including the role of physical, chemical, and biological factors, origin of humus substances, possible participation of lignin in the formation of humus substances, and the role of oxidizing enzymes in the synthesis of humus substances. The manuscript takes a look at the importance of organic matter in soil formation and soil fertility and the natural factors of humus formation. Topics include the role of organic matter in the weathering and decomposition of soil minerals; role of organic matter in the formation of soil structure; effect of organic matter on the growth and development of plants; and influence of chemical and physicochemical soil properties on humus formation. The publication is a dependable source material for readers interested in the influence of soil organic matter in soil formation and fertility.
Author: National Agricultural Library (U.S.)
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 658
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Book Description
