Soil Phosphorus

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Soil Phosphorus

Rattan Lal,B.A. Stewart
Soil Phosphorus Book PDF

Author : Rattan Lal,B.A. Stewart
Publisher : CRC Press
Page : 351 pages
File Size : 53,6 Mb
Release : 2016-09-19
Category : Nature
ISBN : 9781482257854

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Soil Phosphorus by Rattan Lal,B.A. Stewart Pdf

Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities. Phosphorus is a finite but crucial resource and is an essential element to all life. Sub-optimal availability and nutrient imbalance in the root zone can adversely impact plant growth, and the quality of food and feed grown on these soils. However, the proven reserves of phosphorus can hardly be adequate for a few centuries only. Yet, its misuse and mismanagement has caused severe problems of eutrophication of water and pollution of the environment. Thus, judicious management of soil phosphorus is essential. This volume is specifically devoted to availability and recycling of phosphorus, regulatory/policy issues of sustainable use of phosphorus, and management in agroecosystems in the context of maximizing the use efficiency and minimizing the environmental risks of water quality.

Phosphorus in Action

Else K. Bünemann,Astrid Oberson,Emmanuel Frossard
Phosphorus in Action Book PDF

Author : Else K. Bünemann,Astrid Oberson,Emmanuel Frossard
Publisher : Springer Science & Business Media
Page : 485 pages
File Size : 54,7 Mb
Release : 2010-11-08
Category : Science
ISBN : 9783642152719

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Phosphorus in Action by Else K. Bünemann,Astrid Oberson,Emmanuel Frossard Pdf

Phosphorus (P) is a finite resource which is essential for life. It is a limiting nutrient in many ecosystems but also a pollutant which can affect biodiversity in terrestrial ecosystems and change the ecology of water bodies. This book collects the latest information on biological processes in soil P cycling, which to date have remained much less understood than physico-chemical processes. The methods section presents spectroscopic techniques and the characterization of microbial P forms, as well as the use of tracers, molecular approaches and modeling of soil-plant systems. The section on processes deals with mycorrhizal symbioses, microbial P solubilization, soil macrofauna, phosphatase enzymes and rhizosphere processes. On the system level, P cycling is examined for grasslands, arctic and alpine soils, forest plantations, tropical forests, and dryland regions. Further, P management with respect to animal production and cropping, and the interactions between global change and P cycling, are treated.

Soil Analysis

K. I. Peverill,L. A. Sparrow,D. J. Reuter
Soil Analysis Book PDF

Author : K. I. Peverill,L. A. Sparrow,D. J. Reuter
Publisher : CSIRO PUBLISHING
Page : 427 pages
File Size : 49,9 Mb
Release : 1999
Category : Electronic books
ISBN : 9780643063761

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Soil Analysis by K. I. Peverill,L. A. Sparrow,D. J. Reuter Pdf

A practical guide to soil tests for Australian soils and conditions.

Legume Nitrogen Fixation in Soils with Low Phosphorus Availability

Saad Sulieman,Lam-Son Phan Tran
Legume Nitrogen Fixation in Soils with Low Phosphorus Availability Book PDF

Author : Saad Sulieman,Lam-Son Phan Tran
Publisher : Springer
Page : 287 pages
File Size : 46,8 Mb
Release : 2017-06-10
Category : Technology & Engineering
ISBN : 9783319557298

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Legume Nitrogen Fixation in Soils with Low Phosphorus Availability by Saad Sulieman,Lam-Son Phan Tran Pdf

This thoughtful and provocative book provides a concise, up-to-date presentation of how current and projected future phosphorus scarcity will affect legume growth and their symbiotic nitrogen-fixing capabilities. It is a timely examination of the physiological and molecular responses of nodules to phosphorous deficiency in attempt to identify common principles. Students and researchers in the many disciplines related to crop productivity will find this title an exciting contribution in the area of plant stress physiology. The knowledge in this volume can also aid plant breeders, particularly through new methods of genetic engineering, in developing unique and adaptive cultivars with higher symbiotic efficiency. The awareness of the rapidly rising world population must translate into a parallel increase in agricultural production in order to sustain the growing population both now and in the future. Hence, the demand for food crops to produce proteins and vegetable oil for human consumption is going to increase considerably during the coming years. The essential role of legumes in agriculture is well-recognized, given the abundant levels of proteins and oils found in plants along with their enormous contribution to the sustainability of agricultural systems and human health. The capacity of legumes to fix nitrogen (N2) in partnership with rhizobia provides an input-saving and resource-conserving alternative, thereby reducing the need for chemical fertilizers while enhancing overall crop productivity. The use of N2-fixing legumes to produce plant proteins results in a substantial decrease in the consumption of fossil fuels and therefore also in the agricultural effects to global warming. However, a major constraint to legume production is low soil phosphorus (P) availability, considering that an overwhelming majority of the world’s soils are classified as P-deficient. Low-P availability is especially problematic for legumes, since legume nodules responsible for N2 fixation have a high P requirement. Therefore, this book explains how nodule N2 fixation responds to low P availability, which is crucial for improving legume production and maintaining agricultural sustainability in the context of the global P crisis.

Properties and Management of Soils in the Tropics

Pedro A. Sanchez
Properties and Management of Soils in the Tropics Book PDF

Author : Pedro A. Sanchez
Publisher : Cambridge University Press
Page : 685 pages
File Size : 46,8 Mb
Release : 2019-01-10
Category : Business & Economics
ISBN : 9781107176058

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Properties and Management of Soils in the Tropics by Pedro A. Sanchez Pdf

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

Abstracts of Recent Published Material on Soil and Water Conservation

United States. Agricultural Research Service. Soil and Water Conservation Research Division
Abstracts of Recent Published Material on Soil and Water Conservation Book PDF

Author : United States. Agricultural Research Service. Soil and Water Conservation Research Division
Publisher : Unknown
Page : 726 pages
File Size : 55,7 Mb
Release : 2024-06-26
Category : Soil conservation
ISBN : UOM:39015017878110

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Abstracts of Recent Published Material on Soil and Water Conservation by United States. Agricultural Research Service. Soil and Water Conservation Research Division Pdf

Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.

Soil Phosphorus

R Lal,B. A. Stewart
Soil Phosphorus Book PDF

Author : R Lal,B. A. Stewart
Publisher : CRC Press
Page : 344 pages
File Size : 48,7 Mb
Release : 2021-06-30
Category : Electronic
ISBN : 103209771X

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Soil Phosphorus by R Lal,B. A. Stewart Pdf

Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities. Phosphorus is a finite but crucial resource and is an essential element to all life. Sub-optimal availability and nutrient imbalance in the root zone can adversely impact plant growth, and the quality of food and feed grown on these soils. However, the proven reserves of phosphorus can hardly be adequate for a few centuries only. Yet, its misuse and mismanagement has caused severe problems of eutrophication of water and pollution of the environment. Thus, judicious management of soil phosphorus is essential. This volume is specifically devoted to availability and recycling of phosphorus, regulatory/policy issues of sustainable use of phosphorus, and management in agroecosystems in the context of maximizing the use efficiency and minimizing the environmental risks of water quality.

Experiments in Soil Biology and Biochemistry

Fran Russell & Danni Gilmore
Experiments in Soil Biology and Biochemistry Book PDF

Author : Fran Russell & Danni Gilmore
Publisher : Scientific e-Resources
Page : 372 pages
File Size : 54,5 Mb
Release : 2018-08-14
Category : Electronic
ISBN : 9781839471773

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Experiments in Soil Biology and Biochemistry by Fran Russell & Danni Gilmore Pdf

Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils. Soil biology is the study of microbial and faunal activity and ecology in soil. Soil life, soil biota and soil fauna are collective terms that encompasses all organisms that spend a significant portion of their life cycle within a soil profile, or at the soil-litter interface. Soils are rich ecosystems, composed of both living and non-living matter with a multitude of interaction between them. Soils play an important role in all of our natural ecological cycles. They also provide benefits through their contribution in a number of additional processes, called ecosystem services. These services range from waste decomposition to acting as a water filtration system to degrading environmental contaminants. Soil biochemistry is one of the branches of soil science dealing with the formation and decomposition of soil organic matter, biochemical reactions of carbon, nitrogen, phosphorus, sulfur, metals and xenobiotic in soils, and biochemistry of the plant-root rhizosphere. The book will suit to the needs of students, teachers, scholars and general readers.

Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future

Luke Gatiboni,Gustavo Brunetto,Paulo Sergio Pavinato,Tim George
Legacy Phosphorus in Agriculture Role of Past Management and Perspectives for the Future Book PDF

Author : Luke Gatiboni,Gustavo Brunetto,Paulo Sergio Pavinato,Tim George
Publisher : Frontiers Media SA
Page : 140 pages
File Size : 46,9 Mb
Release : 2021-01-07
Category : Science
ISBN : 9782889663576

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Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future by Luke Gatiboni,Gustavo Brunetto,Paulo Sergio Pavinato,Tim George Pdf

Contaminants and the Soil Environment in the Australasia-Pacific Region

R. Naidu,R.S. Kookana,D.P. Oliver,S. Rogers,M.J. McLaughlin
Contaminants and the Soil Environment in the Australasia Pacific Region Book PDF

Author : R. Naidu,R.S. Kookana,D.P. Oliver,S. Rogers,M.J. McLaughlin
Publisher : Springer Science & Business Media
Page : 722 pages
File Size : 42,6 Mb
Release : 2012-12-06
Category : Nature
ISBN : 9789400916265

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Contaminants and the Soil Environment in the Australasia-Pacific Region by R. Naidu,R.S. Kookana,D.P. Oliver,S. Rogers,M.J. McLaughlin Pdf

The Australasia-Pacific Region supports approximately 50% of the world's population. The last half-century has witnessed a rapid increase in the regional population, agricultural productivity, industrial activities and trade within the region. Both the demand for increased food production and the desire to improve the economic conditions have affected regional environmental quality. This volume presents an overview of the fate of contaminants in the soil environment; current soil management factors used to control contaminant impacts, issues related to sludge and effluent disposals in the soil environment; legal, health and social impacts of contaminated land, remediation approaches and strategies to manage contaminated land, some of the problems associated with environmental degradation in the Australasia-Pacific Region and steps that we need to take to safeguard our environment.

Soil Sampling and Methods of Analysis

Susanta Kumar Pal
Soil Sampling and Methods of Analysis Book PDF

Author : Susanta Kumar Pal
Publisher : New India Publishing
Page : 336 pages
File Size : 48,9 Mb
Release : 2013-01-15
Category : Technology & Engineering
ISBN : 9381450579

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Soil Sampling and Methods of Analysis by Susanta Kumar Pal Pdf

Soil Science is an important and basic science in agriculture which deals with different domains of soil research namely, soil formation, genesis and classification, soil physics, soil chemistry, soil fertility and plant nutrition, soil biology, etc. Characterization as well as our understanding of soils requires that they are precisely analysed and described. While the physical properties of soils determine their adaptability to cultivation, chemical properties tells about their chemical environment and nutrient status to the crop production - the most important use of soils on this densely populated planet. Determination of different soil physical and chemical properties in the field or in the laboratory following suitable analytical methods is first step towards appropriate soil managements and scientific recommendations for increasing crop production.