The Contribution of Soil Phosphorus to Phosphorus in Runoff from Turfgrass PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Contribution of Soil Phosphorus to Phosphorus in Runoff from Turfgrass PDF full book. Access full book title The Contribution of Soil Phosphorus to Phosphorus in Runoff from Turfgrass by Douglas James Soldat. Download full books in PDF and EPUB format.
Author: Douglas James Soldat
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 262
Get Book Here
Book Description
Author: Douglas James Soldat
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 262
Get Book Here
Book Description
Author: Timothy R. Davis
Publisher:
ISBN:
Category : Phosphorus
Languages : en
Pages : 416
Get Book Here
Book Description
Author: Naser A. Anjum
Publisher: BoD – Books on Demand
ISBN: 1837690359
Category : Technology & Engineering
Languages : en
Pages : 164
Get Book Here
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: Kylienne A. Clark
Publisher: The Ohio State University
ISBN:
Category : Nature
Languages : en
Pages : 594
Get Book Here
Book Description
This book was written by undergraduate students at The Ohio State University (OSU) who were enrolled in the class Introduction to Environmental Science. The chapters describe some of Earth's major environmental challenges and discuss ways that humans are using cutting-edge science and engineering to provide sustainable solutions to these problems. Topics are as diverse as the students, who represent virtually every department, school and college at OSU. The environmental issue that is described in each chapter is particularly important to the author, who hopes that their story will serve as inspiration to protect Earth for all life.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Removal of manure from dairies to sites less prone to point-source nutrient pollution is an option for dealing with dairy confined animal feeding operation wastes. Applications of dairy manure waste to turfgrass sod can be an environmentally sound approach because both plant matter and soil are removed during harvest (Vietor et al., 2002). Field scale research was conducted on a pair of adjacent, 1.42 ha Tifway bermudagrass fields on a fine-textured clay soil to investigate the fate of manure phosphorus (P) from composted dairy manure applications. Both fields received equal rates of supplemental nitrogen fertilizer but one was treated with composted dairy manure. The treated field received 75 kg ha−1 P during the first crop. After harvest, 127 kg ha−1 P was applied to the second crop. Once re-established, this crop was harvested. Surface layer sod and subsurface soil were frequently sampled on a grid pattern from each field and analyzed to monitor soil P. Both plant extractable and total P analyses were used. It was determined that a sod harvest could effectively remove all of the applied manure P. Below the sod layer, there were no increases in soil P as a result of the composted dairy manure treatments, indicating that P leaching did not occur. Phosphorus runoff during rain events or irrigation was monitored by members of the Department of Biological and Agricultural Engineering. It was reported that more P was lost in runoff from the compost treated field than the untreated field. Cumulative water infiltration rate, soil bulk density, and plant available water holding capacity of the soil were tested to determine if the composted dairy manure treatments affected these soil physical properties. The only significant change was an increase in plant available water holding capacity on the surface layer of the treated field. An economic analysis was performed using actual financial data from the project. A scenario was created to investigate the feasibility of a dairy farm profitably adding a small turfgrass sod enterprise to its operation. It was determined that a sod field enterprise could be moderately to highly profitable for a dairy.
Author: M. A. Tabatabai
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 752
Get Book Here
Book Description
Author: Else K. Bünemann
Publisher: Springer Science & Business Media
ISBN: 3642152716
Category : Science
Languages : en
Pages : 485
Get Book Here
Book Description
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.
Author: Emily Renee Horner
Publisher:
ISBN:
Category : Nitrogen
Languages : en
Pages : 59
Get Book Here
Book Description
Abstract: Phosphorus (P) use in the turfgrass industry has recently become heavily scrutinized due to its suspected contribution to eutrophication of lakes and streams. Inorganic P is a highly immobile nutrient in the soil, binding tightly to organic matter, soil particles, and minerals immediately following fertilizer application. Though many studies have shown that P run-off from turf is not a major source of water pollution, and in many ways helps prevent it in urban and other settings, restrictions are being placed on fertilization of turf with products that contain P. The portion of P in the soil that is available for plant use, inorganic P, is only a small fraction of the total P that exists at any time in the soil. Phosphorus transformations between the unavailable organic P form and inorganic P in soil is not completely understood given that the process depends on a combination of many factors such as soil moisture; pH; temperature or seasonality; spacial variability; presence or absence of other nutrients such as nitrogen (N), iron (Fe), aluminum (Al), carbon (C) and calcium (Ca); soil type; microbial activity; climate; vegetation; etc. A field study was conducted in 2006-2007 at the Ohio Turfgrass Research and Educational Facility, Columbus, Ohio to observe the effects of two of these factors, temperature or seasonality and the presence of nitrogen, on soil P availability. While applications of nitrogen alone in the past have been shown to maintain or increase available P levels in the soil, little evidence was seen here. Regardless of fertilizer treatment or timing, plant available P levels in all plots continuously decreased throughout the study indicating no treatment by time interaction. Some fertilizer treatment effects were observed that indicate that nitrogen fertilizer source can produce changes in plant available phosphorus.
Author: A. Spires
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 118
Get Book Here
Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069483
Category : Science
Languages : en
Pages : 422
Get Book Here
Book Description
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.
