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Factors Affecting Water Extractable Phosphorus In Manure And Its Relationship To Phosphorus Losses In Runoff
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Book Synopsis Factors Affecting Water Extractable Phosphorus in Manure and Its Relationship to Phosphorus Losses in Runoff by : Julie S. Studnicka
Download or read book Factors Affecting Water Extractable Phosphorus in Manure and Its Relationship to Phosphorus Losses in Runoff written by Julie S. Studnicka and published by . This book was released on 2006 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of Manure and Soil Test Phosphorus on Phosphorus Runoff from Soils Subjected to Simulated Rainfall by :
Download or read book Impact of Manure and Soil Test Phosphorus on Phosphorus Runoff from Soils Subjected to Simulated Rainfall written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Runoff from agricultural fields amended with animal manure or fertilizer is a source of phosphorus (P) pollution to surface waters, which can have harmful effects such as eutrophication. The objectives of this study were to evaluate the impact of soil P status and the P composition of manure sources on P in runoff, characterize the effects of manure sources on mass loss of dissolved reactive P (DRP), total dissolved P (TDP), algal available P (AAP) and total P (TP) in runoff, and enhance the PLAT database with respect to soluble P attenuating factor (SPAF) and non-soluble P attenuating factor (NSPAF) values. Soil boxes set at 5% slopes received 7.5 cm hr-1 of simulated rainfall. Study soils included a Kenansville loamy sand (loamy siliceous subactive thermic Arenic Hapludults, a Coastal Plain soil) and a Davidson silt loam (kaolinitic thermic Rhodic Kandiudults, a Piedmont soil). Soil test P concentrations ranged from 16 to 283 mg P kg-1. Sources of P included broiler litter (BRL), breeder manure (BRD), breeder manure treated with three rates of alum (Al2(SO4)3) BRD0-0 kg m-2, BRDL-3.9 kg m-2, and BRDH-7.8 kg m-2 and DAP along with an unamended control. All manure sources were applied at 66 kg P ha-1. Water extractable P (WEP) represented an average of 10?b 6% total P in manure. Runoff samples were taken over a 30-min period. Piedmont soil contained greater amounts of clay, Al and Fe concentrations, and higher P sorption capacities that produced significantly lower DRP, TDP, AAP, and TP losses than the Coastal Plain soil. Runoff P loss did not differ for low and high STP soils of same taxonomy with the exception of AAP mass losses for Coastal Plain soil samples. Water extractable P in manures accounted for all DRP lost in runoff with DRP correlating strongly with WEP concentration (0.9961). A weak relationship between DRP in runoff and WEP applied to soil boxes was observed (R2=0.6547) and increased when a possible outlying manure treatment, BRL, was omitted from r.
Book Synopsis Phosphorus Loss from Soil to Water by : H. Tunney
Download or read book Phosphorus Loss from Soil to Water written by H. Tunney and published by Cabi. This book was released on 1997 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Phosphorus Source Effects on Phosphorus Losses in Runoff, Plant Availability, and Soil Phosphorus by : Angela M. Ebeling
Download or read book Phosphorus Source Effects on Phosphorus Losses in Runoff, Plant Availability, and Soil Phosphorus written by Angela M. Ebeling and published by . This book was released on 2001 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Phosphorus written by Rattan Lal and published by CRC Press. This book was released on 2016-09-19 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Contribution of Soil Phosphorus to Phosphorus in Runoff from Turfgrass by : Douglas James Soldat
Download or read book The Contribution of Soil Phosphorus to Phosphorus in Runoff from Turfgrass written by Douglas James Soldat and published by . This book was released on 2007 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Animal Waste Utilization by : J. L. Hatfield
Download or read book Animal Waste Utilization written by J. L. Hatfield and published by CRC Press. This book was released on 1997-11-01 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book examines the beneficial aspects of animal waste as a soil resource - not simply as an agricultural by-product with minimal practical use. Topics include o types of livestock waste - swine, poultry, dairy o methods and management of waste utilization o storage, handling, processing and application of animal waste o supplying crop nutrients o economics of waste utilization o new modeling and management techniques o nonpoint source pollution, water quality, leaching, and air quality.
Book Synopsis Factors Affecting Phosphorus Transport at a Conventionally-farmed Site in Lancaster County, Pennsylvania, 1992-95 by : Daniel G. Galeone
Download or read book Factors Affecting Phosphorus Transport at a Conventionally-farmed Site in Lancaster County, Pennsylvania, 1992-95 written by Daniel G. Galeone and published by . This book was released on 1996 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil and Runoff Phosphorus as Affected by Fertilizer and Manure Application by : Brett Lee Allen
Download or read book Soil and Runoff Phosphorus as Affected by Fertilizer and Manure Application written by Brett Lee Allen and published by . This book was released on 2004 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer or manure applications are increasing soil P in agricultural fields. This study assessed the impact of P application on soil P fractions and P loss with surface runoff based on P rate field trials and both indoor and field rainfall simulations. Bray P, Mehlich-3 (M3) P, Olsen P, total P (TPS), and soil P saturation (Psat) estimated by M3 or oxalate extractable P, Fe, and Al molar ratios increased with cumulative P application (0 to 1098 kg P ha−1 after 4 to 23 yr) at plots from 11 trials. Soil test P, TPS, and Psat were linearly correlated. Routine soil P tests can approximate long-term effects of P application on TPS and Psat for soils and P ranges considered. In an indoor rainfall simulation study, Marshall, Nicollet, Fayette, Tama, and Harps (calcareous) soils were incubated with 0, 50, 125, 300, and 600 mg kg−1 P. Phosphorus application increased soil and runoff P concentrations linearly, and often at higher rates for the calcareous soil, but P relationship differences in soil or runoff were small or nonexistent across four noncalcareous soils. Three P tests, two environmental P tests (FeO-impregnated paper and water extraction), TPS, and Psat (M3, oxalate, and a P sorption index) increased linearly with P rate and were highly correlated. Environmental soil P tests and Psat indices correlated no better with dissolved reactive P (DRP), bioavailable P (BAP), or total P (TPR) than routine soil P tests. A field study assessed runoff P losses following liquid swine manure application (up to 220 kg ha−1 P) and simulated rainfall. When manure was not incorporated and rainfall was applied within 24 h, increasing P rates increased runoff P linearly and the fraction of TPR as DRP or BAP increased. When manure was incorporated, runoff P did not increase or increased only slightly. A 10 d rainfall delay sharply decreased runoff P in non-incorporated treatments, sometimes to lower levels than with incorporation. Incorporating manure when the probability of immediate rainfall is high reduces the risk of P loss in surface runoff; however, this benefit decreases with time and incorporation could lead to greater erosion and TPR loss in the long term.
Book Synopsis Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future by : Luke Gatiboni
Download or read book Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future written by Luke Gatiboni and published by Frontiers Media SA. This book was released on 2021-01-07 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clean Coastal Waters by : National Research Council
Download or read book Clean Coastal Waters written by National Research Council and published by National Academies Press. This book was released on 2000-08-17 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Book Synopsis Soils and Environmental Quality by : Gary M. Pierzynski
Download or read book Soils and Environmental Quality written by Gary M. Pierzynski and published by CRC Press. This book was released on 2005-05-02 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aperpetual bestseller, this third edition remains the obvious choice for those instructors who strive to make their teaching applicable to contemporary issues. The three authors, all teaching professors distinguished in soil science, have updated this student favorite to include a greater number of even more relevant topics. Responding to requests, they have also placed an increased emphasis on management issues. As with previous editions, the third edition offers students in soil or environmental science an overview of soil science, hydrology, atmospheric chemistry, and pollutant classification. The text moves from the theoretical to the practical with an abundance of contemporary examples, such as an exploration of allowable pesticide concentrations in drinking water and an inquiry into soil contamination from the trace elements in organic by-products. Also considered are the use of soil carbon sequestration as a remedy for global climate change, and the effects of acid precipitation on forestation. NEW TO THE THIRD EDITION: · New chapters on nutrient management planning, and the environmental testing of soil, plants, water, and air · Additional and revised case studies that continue to relate academic content to real-life situations, while inspiring students with real –life challenges to solve · Eight-page color inset · Direct encouragement and links to fully access the Internet as a resource for the most up-to-date findings Always Relevant, Always Interesting The text also covers environmentally-related current events, fostering discussion of the political, economic, and regulatory aspects of environmental issues, the human side of environmental problems, the use and misuse of the scientific method, and potential bias in the presentation of facts. Students in soil science, environmental science, chemistry, biology, geology, and other disciplines will gain valuable insight from this multifaceted text.
Book Synopsis Some Factors Affecting the Solubility of Phosphorus in Soils by : Russell H. Austin
Download or read book Some Factors Affecting the Solubility of Phosphorus in Soils written by Russell H. Austin and published by . This book was released on 1925 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agricultural Phosphorus and Eutrophication by :
Download or read book Agricultural Phosphorus and Eutrophication written by and published by DIANE Publishing. This book was released on with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Tabbara, Hadi Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :160 pages Book Rating :4.:/5 (449 download)
Book Synopsis Effects of Liquid Swine Manure Placement and Rate on Phosphorus Loss with Runoff Water [microform] by : Tabbara, Hadi
Download or read book Effects of Liquid Swine Manure Placement and Rate on Phosphorus Loss with Runoff Water [microform] written by Tabbara, Hadi and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2000 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Total suspended solids (TSS) concentrations and mass losses in runoff water were significantly greater for the liquid fertilizer treatment in comparison with manure treatment. Concentrations and total losses of all P forms with runoff water were significantly greater for fertilizer treatment in comparison with manure. These losses were significantly less when manure or fertilizer was incorporated. Concentrations of all P forms were significantly greater for the higher rates of application, but similar effects on mass losses were only found for total phosphorus, particulate phosphorus, and bioavailable phosphorus (BAP). Soil test for P(STP) by agronomic and environmental tests showed that dissolved P (DP) and BAP concentrations in runoff water were best predicted by Bray 1-P or iron oxide strip-P in soil. DP and BAP total losses with runoff water were well correlated (r> 0.85) with Bray 1-P, iron oxide strip-P, and water extractable P in soil.
Book Synopsis Agronomic and Environmental Soil Phosphorus Testing in Relation to Phosphorus Loss from Manured Field Plots and an Impaired Watershed by : Jeremy Glen Klatt
Download or read book Agronomic and Environmental Soil Phosphorus Testing in Relation to Phosphorus Loss from Manured Field Plots and an Impaired Watershed written by Jeremy Glen Klatt and published by . This book was released on 2001 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of liquid swine manure and poultry litter applications on soil P and P losses with surface runoff and subsurface drainage were studied using rain-fed fields plots. After five years of liquid swine and three years of poultry litter applications at N based rates for the corn/soybean rotation, soil P levels had exceeded optimum levels. Injection of liquid swine manure reduced soil P levels in the surface 5 cm of soil compared to broadcast application. Bray-1, Olsen, Mehlich-3 agronomic tests and iron- oxide impregnated strip, water extractable and P saturation environmental tests were found to be highly correlated in surface soils at both sites. Total dissolved P in surface runoff was found to be curvlinearly related to all soil P tests. Estimates of P loads in surface runoff and subsurface drainage suggest that surface losses of particulate P dominated loss from the swine manure study.
Book Synopsis Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate by : Sterling Robertson Olsen
Download or read book Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate written by Sterling Robertson Olsen and published by . This book was released on 1954 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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