Author: Bruce Alan Linquist
Publisher:
ISBN:
Category :
Languages : en
Pages : 230

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Book Description

Author: Pedro A. Sanchez
Publisher: Cambridge University Press
ISBN: 1107176050
Category : Business & Economics
Languages : en
Pages : 685

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Book Description
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 824

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Book Description
Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.

Author: Rafael Agustin Pinto
Publisher:
ISBN:
Category :
Languages : en
Pages : 200

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Book Description

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: Naser A. Anjum
Publisher: BoD – Books on Demand
ISBN: 1837690359
Category : Technology & Engineering
Languages : en
Pages : 164

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Book Description
Phosphorus (P) stands second to nitrogen in terms of its essentiality as a plant macronutrient, as well as due to its involvement in almost all plant developmental stages, primary and secondary plant metabolisms, maintenance of membrane structures, and in the structural skeleton of major biomolecules. An optimum P-supply also helps plants combat abiotic stress impacts. Most P in soil remains unavailable for uptake by plants. P-containing fertilizers are being added to agricultural lands to sustain high yields. Only the least amount of the applied P (20%–30%) is used by most cultivated plants, and the rest remains as legacy P (P surpluses), which eventually causes eutrophication. This book, Phosphorus in Soils and Plants, reviews P in soils and plants, P dynamics in the soil–water–sediment environment, the major roles of P in the photosynthetic dark phase-biochemical pathways, major approaches for the sustainable management of P in agriculture, main mechanisms underlying the role of P in the regulation of plant–microbe interactions in the rhizosphere, literature on the role of microbial phosphate solubilization in management of soil and plant nutrients, and insights into P recovery through waste transformation. This volume is an important resource for plant biologists involved in teaching or research who wish to advance their knowledge of P in soils and plants.

Author: Courtney D. Giles
Publisher:
ISBN:
Category :
Languages : en
Pages : 416

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Book Description
The dissertationis composed of six sections: (I) A review of inositol phosphate cycling in agricultural soils; (2) A study of organic P transport and cycling in leached, poultry manure amended soil columns; (3) An assessment of plant organic anion exudation and the influence of this process on the bioavailability of sorbed phytate to tobacco (Nicotiana tabacum); (4) The specific role of Pseudomonas spp. gluconic acid production on the bioavailability of precipitated phytate to tobacco; (5) Implications for agricultural nutrient management and (6) a summary of findings.

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: Megan Elizabeth McGroddy
Publisher:
ISBN:
Category :
Languages : en
Pages : 354

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Book Description

Author: T. Komang Ralebitso-Senior
Publisher: Elsevier
ISBN: 012803436X
Category : Technology & Engineering
Languages : en
Pages : 342

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Book Description
Biochar Application: Essential Soil Microbial Ecology outlines the cutting-edge research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics, as well as the microbial ecology of biochar application to soil, the use of different phyto-chemical analyses, possibilities for future research, and recommendations for climate change policy. Biochar, or charcoal produced from plant matter and applied to soil, has become increasingly recognized as having the potential to address multiple contemporary concerns, such as agricultural productivity and contaminated ecosystem amelioration, primarily by removing carbon dioxide from the atmosphere and improving soil functions. Biochar Application is the first reference to offer a complete assessment of the various impacts of biochar on soil and ecosystems, and includes chapters analyzing all aspects of biochar technology and application to soil, from ecogenomic analyses and application ratios to nutrient cycling and next generation sequencing. Written by a team of international authors with interdisciplinary knowledge of biochar, this reference will provide a platform where collaborating teams can find a common resource to establish outcomes and identify future research needs throughout the world. - Includes multiple tables and figures per chapter to aid in analysis and understanding - Includes a comprehensive table of the methods used within the contents, ecosystems, contaminants, future research, and application opportunities explored in the book - Includes knowledge gaps and directions of future research to stimulate further discussion in the field and in climate change policy - Outlines the latest research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics - Offers an assessment of the impacts of biochar on soil and ecosystems