A Study of the Effect of Mineral Phosphates Upon the Organic Content of Organic Soils PDF Download
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Author: Wade Wiley McCall
Publisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 110
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Book Description
Author: Wade Wiley McCall
Publisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 110
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Book Description
Author: A. F. Harrison
Publisher: C.A.B. International
ISBN:
Category : Science
Languages : en
Pages : 276
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Book Description
Methodology. Relationships between total organic P and other soil propeties. Effects of climate and soil drainage. Effects of land class and vegetation type. Seasonal variation. Variation with soil type. Variation with soil parent material. Distribution in soil profiles. prediction of content in surface soils. Effects of land-management practices. Mobility in soils. Weathering and pedogenesis. Total quantity in the soil profile. Chemical nature. Association with organic matter. Importance in plant nutrition. Mineralization in soils. The release of inorganic P from organic detritis.
Author: Benjamin L. Turner
Publisher: Cabi
ISBN: 9780851998220
Category : Science
Languages : en
Pages : 399
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Book Description
Phosphorus is essential for life, yet is often the element most limiting for biological productivity. Although most organisms take up phosphorus in an inorganic form, organic forms frequently dominate in soils and aquatic systems. Up to this point, the role of organic phosphorus and mechanisms for its dynamics have been poorly understood. However, recent advances in research have shed new light on the subject and this book brings together these advances. It covers the transformation and characterization of organic phosphorus in both terrestrial and aquatic systems. It will attract a broad range of scientists from several disciplines.
Author: Y. Chen
Publisher: Springer Science & Business Media
ISBN: 9400944268
Category : Technology & Engineering
Languages : en
Pages : 312
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Book Description
The use of organic residues as a means of maintaining and increasing soil fertility is of long-standing. This tradition has been somewhat neglected since the introduc tion of mineral fertilizers at low cost. More and more farmers and scientists are now showing renewed interest in the proper and effective use of org~tnic residues, composts and other recycled organic additives. The role and function of organic amendments in modern agricultural systems have become topics of major interest in the scientific and agricultural communities. Research work on residue disposal has provided new concepts on the interaction between organic components and soils as well as new handling technologies (e. g. pelletizing of organic residues). The trend to conserve energy has led scientists to study the minimal tillage system, to find ways of replacing conventional inorganic fertilizers with natural organic prod ucts or microbial preparations, and to develop new composting methods. The drive to achieve higher yields in commercial greenhouse farming has led to a search for optimum substrates as growth media and for improved management techniques. This has led to the introduction of organic substitutes for peat, nota bly those originating from agricultural wastes. Another important aspect is the current interest in organic farming, where use of synthetic chemicals is avoided or prohibited. An increasing percentage of the population in highly developed countries is willing to pay premium prices for food produced on soils where inorganic fertilizers and other agricultural chemicals have not been used.
Author: Peter Powell Peterson
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 28
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Book Description
Author:
Publisher:
ISBN:
Category : Soil conservation
Languages : en
Pages : 96
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Book Description
Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.
Author: Craig George Cogger
Publisher:
ISBN:
Category : Humus
Languages : en
Pages : 266
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Book Description
Author: J. E. Gieseking
Publisher: Springer Science & Business Media
ISBN: 3642659152
Category : Science
Languages : en
Pages : 601
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Book Description
Organic substances returned to the soil by plants, animals and microorganisms go through biochemical cycles and subcycles that provide essential media for the growth of plants in the soil. These cycles involve numerous, complicated and interdependent chemical reactions. Many books have been written to describe the genesis, the nature and the reactions of soil organic matter and have contributed much to organizing parts of the knowledge about soil organic matter. Each book is an important contribution but none has duplicated any of the others to any great extent; each has developed essential bu.
Author: F. J. Stevenson
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 408
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Book Description
The carbon cycle. Carbon balance of the soil and role of organic matter in soil fertility. Environmental aspects of the soil carbon cycle. The nitrogen cycle in soil: global and ecological aspects. The international cycle of nitrogen in soil. Impact of nitrogen on health and the environment. The phosporus cycle. The sulfur cycle. The micronutrient cycle.
Author: Soil Science Society of America
Publisher:
ISBN:
Category : Soil science
Languages : en
Pages : 590
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Book Description
