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Author : Anonim
Publisher : DIANE Publishing
Page : 42 pages
File Size : 49,5 Mb
Release : 2024-06-26
Category : Electronic
ISBN : 9781428907621
Author : Ewald Schnug,Luit J. De Kok
Publisher : Springer
Page : 357 pages
File Size : 53,7 Mb
Release : 2016-06-14
Category : Science
ISBN : 9789401776127
The title ‘Phosphorus in Agriculture: 100 % Zero’ is synonymous for make-or-break. And it stands up to the promise. This book sends an important message as it delivers background information, intrinsic hypotheses, validation approaches and legal frameworks, all for balanced phosphorus fertilization in agriculture. This implies firstly that the phosphorus requirement of crop is fully satisfied by applying exclusively fertilizers which contain the nutrient in completely available form. Secondly, environmental demands through eutrophication and hazardous contaminants must not be compromised. The book identifies equally knowledge gaps and deficits in the transformation and implementation of research into practice. Bottom line is that research delivers the tools for a sustainable phosphorus management while legal frameworks are insufficient.
Author : Gerard Kiely,Hubert Tunney,Ireland. Environmental Protection Agency,Environmental Research Technological Development and Innovation Programme
Publisher : Unknown
Page : 10 pages
File Size : 55,9 Mb
Release : 2007
Category : Environmental policy
ISBN : 1840952458
Author : H. Tunney
Publisher : Cabi
Page : 488 pages
File Size : 46,8 Mb
Release : 1997
Category : Science
ISBN : UCSD:31822025748427
Eutrophication, caused by phosphorus enrichment, is not a new environmental problem. The persistence of eutrophication in an era when many point-source phosphorus inputs have been curtailed has turned the focus of attention to agricultural phosphorus. A workshop was held in Ireland in 1995 to discuss factors controlling phosphorus losses to water from agriculture. This book presents the proceedings of the workshop and consists of 18 chapters by the invited speakers and three chapters with the 45 poster papers displayed at the workshop.
Author : Alfred Frank Bartsch
Publisher : Unknown
Page : 60 pages
File Size : 54,9 Mb
Release : 1972
Category : Eutrophication
ISBN : UIUC:30112072651380
Author : Andrew N. Sharpley
Publisher : CRC Press
Page : 256 pages
File Size : 45,6 Mb
Release : 1999-12-20
Category : Technology & Engineering
ISBN : 1566704944
Using the Chesapeake Bay as a case study, Agriculture and Phosphorus Management discusses the impact and management of phosphorus in watersheds. Although urban and other sources contribute phosphorus to the Bay, the papers presented focus on how its role in agriculture impacts water quality. They review the new guidelines and legislation slated for implementation by 2002 directed towards sustainable nutrient management and strategies for implementing them. Phosphorus, an essential element for plant and animal growth, has long been recognized as necessary to eliminate deficiencies and to maintain profitable crop and livestock production. It can increase the biological productivity of surface waters by accelerating eutrophication. Human activities accelerate the rate of eutrophication - principally by increasing the rate at which phosphorus enters the aquatic system. Written by experts from a range of disciplines Agriculture and Phosphorus Management provides a deeper understanding of the diverse, dynamic, and complex factors controlling the impact of agricultural phosphorus management on production and water quality. Each contributor addresses the questions: what do we know, what do we still need to know, where are the major gaps in our knowledge, and how does the information relate to phosphorus management strategies in the Bay Watershed, and other watersheds? As a result this series of papers provides a unique collection of information of regional, national, and international significance and gives prioritized phosphorus management options for not only the Chesapeake Bay Watershed, but for watersheds around the world.
Author : Rattan Lal,B.A. Stewart
Publisher : CRC Press
Page : 351 pages
File Size : 50,7 Mb
Release : 2016-09-19
Category : Nature
ISBN : 9781482257854
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.
Author : Andrew N Sharpley
Publisher : Forgotten Books
Page : 50 pages
File Size : 48,7 Mb
Release : 2018-03-19
Category : Electronic
ISBN : 0364961791
Excerpt from Agricultural Phosphorus and Eutrophication Lake water concentrations of P above ppm generally accelerate eutrophication. These values are an order of magnitude lower than P concentrations in soil solution critical for plant growth to ppm), emphasizing the disparity between critical lake and soil P concentrations and the importance of controlling P losses to limit eutrophication. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : Karen Daly
Publisher : Unknown
Page : 15 pages
File Size : 45,5 Mb
Release : 2006
Category : Agricultural pollution
ISBN : 1840951796
Author : Anonim
Publisher : Food & Agriculture Org.
Page : 372 pages
File Size : 52,9 Mb
Release : 1978
Category : Business & Economics
ISBN : 9251006571
A number of countries in Europe and North America have been using fertilizers heavily for a number of years and particulary since 1945. This high level of fertilizer applications is essential to supply the necessary food for increasing populations and to meet higher demands for animal and plant products. Effects of fertilizer use on the environment should show first in countries where fertilizers have been used intensively for some time and where consumption is steadily rising. It is the experience gained in such countries which is being discussed below with a view to assessing the impact of fertilizers on the human environment, including the development of methods for recognizing and minimizing any undersirable consequences which may be produced. It should be realized that high densities of human population combined with intensive crop and livestock production have led to the production of organic wastes at a rate too high for natural processes to convert it in ecologically safe compounds. Therefore both direct and indirect effects of intensive fertilizer use have been reviewed.
Author : European Environment Agency
Publisher : Unknown
Page : 54 pages
File Size : 47,7 Mb
Release : 2005
Category : Science
ISBN : UOM:39015063148582
Eutrophication, the excessive enrichment of waters with nutrients and the associated adverse biological effects, is one of the major environmental problems across Europe. European waters are affected across the whole range from inland water bodies such as groundwater, rivers and lakes, to transitional and coastal waters and ecosystems in open seas. Eutrophication is caused by large anthropogenic inputs of the nutrients nitrogen (N) and phosphorus (P) to the aquatic environment from a range of societal sectors. This study primarily focuses on the contribution of agriculture to this contamination.
Author : Barbara J. Cade-Menun,Solange Duhamel,Rosalind J. Dodd,Christian Lønborg,Chris T. Parsons,William D. Taylor
Publisher : Frontiers Media SA
Page : 165 pages
File Size : 40,7 Mb
Release : 2019-05-15
Category : Electronic
ISBN : 9782889458295
Phosphorus (P) is an essential element for all organisms. However, there is a P paradox, whereby P concentrations considered deficient in some environments such as in agricultural soils are considered excessive in water, where they trigger eutrophication. Ensuring adequate P for crop production while minimizing water quality degradation requires consideration of the P continuum from soils to freshwater and oceans. It also requires an international, interdisciplinary approach to monitoring and scientific research. This eBook brings together P studies in soil science, lakes, rivers, estuaries and oceans, with 74 authors from 12 countries in Asia, Europe and North America. The papers assembled here provide important new information to address knowledge gaps, cover P forms and cycling in soil and water, and identify key priorities for future research. Thus, the papers assembled here provide current and interdisciplinary information about P forms and their cycling along the soil-freshwater-ocean continuum, which is essential for environmentally sustainable P use.
Author : Naser A. Anjum,Asim Masood,Shahid Umar,Nafees A. Khan
Publisher : BoD – Books on Demand
Page : 164 pages
File Size : 46,6 Mb
Release : 2024-01-31
Category : Technology & Engineering
ISBN : 9781837690350
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 : Karl A. Wyant,Jessica E. Corman,Jim J. Elser
Publisher : Oxford University Press
Page : 456 pages
File Size : 52,8 Mb
Release : 2013-06-14
Category : Science
ISBN : 9780199916849
Phosphorus is essential to all life. A critical component of fertilizers, Phosphorus currently has no known substitute in agriculture. Without it, crops cannot grow. With too much of it, waterways are polluted. Across the globe, social, political, and economic pressures are influencing the biogeochemical cycle of phosphorus. A better understanding of this non-renewable resource and its impacts on the environment is critical to conserving our global supply and increasing agricultural productivity. Most of the phosphorus-focused discussion within the academic community is highly fragmented. Phosphorus, Food, and Our Future will bring together the necessary multi-disciplinary perspectives to build a cohesive knowledge base of phosphorus sustainability. The book is a direct continuation of processes associated with the first international conference on sustainable phosphorus held in the United States, the Frontiers in Life Sciences: Sustainable Phosphorus Summit, though it is not a book of conference proceedings; rather, the book is part of an integrated, coordinated process that builds on the momentum of the Summit. The first chapter will introduce the biological and chemical necessity of phosphorus. The subsequent ten chapters will explore different facets of phosphorus sustainability and the role of policy on future global phosphorus supplies. The final chapter will synthesize all of the emerging views contained in the book, drawing out the leading dilemmas and opportunities for phosphorus sustainability.
Author : A. E. Johnston,C. J. Dawson
Publisher : Unknown
Page : 72 pages
File Size : 45,6 Mb
Release : 2005
Category : Phosphorus in agriculture
ISBN : 085310199X
