Dairy Manure-component Effects on Phosphorus Release from Sandy Soils
Dairy Manure-component Effects on Phosphorus Release from Sandy Soils

Author: Manohardeep Singh Josan

Publisher:

Published: 2007

Total Pages:

ISBN-13:

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Preemptive dietary controls to maximize Ca-P and minimize Mg-P in manure would be a strategy to reduce P loss from these soils in the future. Application of Al-based water treatment residuals could minimize the release of P from the manure-amended soils. DOC inhibition of Ca-P precipitation and competitive effects on P sorption reduce prospects for stabilizing P reactions in heavily manure-amended soils.

Phosphorus Requirements in Soils Amended with Organic Materials
Phosphorus Requirements in Soils Amended with Organic Materials

Author: Ronaldo Severiano Berton

Publisher:

Published: 1987

Total Pages: 290

ISBN-13:

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The addition of organic residues to the soil may modify the amounts of plant available phosphorus (P) found in this ssytem. These studies were undertaken to evaluate the suitability of the sorption isotherm technique for estimating the amounts of inorganic P required for optimum plant growth, the correlation of P availability with the amount of P extracted by three chemical methods, and with the activity of two phosphatase enzymes, when soils were amended with organic materials. Acid phosphatase and phosphodiesterase activities were also compared with the P availability to plants. Soil phosphodiesterase activity correlated better with corn yield and plant uptake than acid phosphatase activity. The correlation of phosphodiesterase activity with microbial activity might be used to indicate the contribution of the soil organic P pool in the P supply to the plant.

Phosphorus Immobilization in Manure-impacted Soil with Aluminum-based Drinking Water Treatment Residual
Phosphorus Immobilization in Manure-impacted Soil with Aluminum-based Drinking Water Treatment Residual

Author: Michael Miyittah-Kporgbe

Publisher:

Published: 2004

Total Pages:

ISBN-13:

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Increased WTR rates can largely overcome soluble organics impacts and negate the need for massive soil horizon mixing. Al-WTR can be an effective soil amendment to reduce P loss from manure-impacted soil when the WTR is made to contact soluble P in the soil profile. Soluble P not in direct contact with the WTR is unaffected by WTR and is subject to leaching loss.

Applied Manure and Nutrient Chemistry for Sustainable Agriculture and Environment
Applied Manure and Nutrient Chemistry for Sustainable Agriculture and Environment

Author: Zhongqi He

Publisher: Springer Science & Business Media

Published: 2014-04-07

Total Pages: 385

ISBN-13: 9401788073

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Due to the rapid increase in world population and improving living standards, the global agriculture sector is confronting with challenges for the sustainability of agricultural production and of the environment. Intensive high-yield agriculture is typically dependent on addition of fertilizers (synthetic chemicals, animal manure, etc.). However, non-point nutrient losses from agricultural fields due to fertilization could adversely impact the environment. Increased knowledge on plant nutrient chemistry is required for improving utilization efficiency and minimizing loses from both inorganic and organic nutrient sources. For this purpose, the book is composed of 19 chapters that highlight recent research activities in applied nutrient chemistry geared toward sustainable agriculture and environment. Topics of interest include, but are not limited, to speciation, quantification, and interactions of various plant nutrients and relevant contributories in manure, soil, and plants. This book outlooks emerging researchable issues on alternative utilization and environmental monitoring of manure and other agricultural by products that may stimulate new research ideas and direction in the relevant fields.

Lability of Drinking-water Treatment Residuals (WTR) Immobilized Phosphorus
Lability of Drinking-water Treatment Residuals (WTR) Immobilized Phosphorus

Author: Sampson Agyin-Birikorang

Publisher:

Published: 2006

Total Pages:

ISBN-13:

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Amendment with WTR decreased total dissolved P and bioavailable P masses in runoff and leachate by more than 50%. From the various studies, we conclude that WTR is an effective amendment to control labile P in P-impacted soils and that WTR immobilized P is stable and will remain fixed for a long time, independent of common soil pH values.

Water Residuals to Reduce Soil Phosphorous
Water Residuals to Reduce Soil Phosphorous

Author: James DeWolfe

Publisher: American Water Works Association

Published: 2006

Total Pages: 120

ISBN-13: 9781583214275

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A report on the collaborative project of three water utilities (Pennsylvania American Water Company , Tulsa Metropolitan Utility Authority, and Denver Water) looking at managing water treatment residuals (WTRs) generated by drinking water treatment facilities. The goal is to exploit the unique characteristics of WTR for beneficial use, specifically to improve phosphorus management of agricultural lands by controlling the release of phosphorus.

Water Residuals and Biosolids
Water Residuals and Biosolids

Author: Jim Ippolito

Publisher: American Water Works Association

Published: 2006

Total Pages: 72

ISBN-13: 1583214852

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This research report presents the results of a study to determine both the longlasting effects of a single WTR-biosolids co-application (applied in 1991) and the short-term impacts of a repeated WTR-biosolids co-application (applied in 2002) on native rangeland soil phosphorus dynamics. This report covers from the time of application (1991 or 2002) along with changes between sampling periods, with field soil sampling occurring in October 2003 and October 2004. Specifically looked at were quantify changes in inorganic soil P associated with a single or repeated WTR-biosolids co-application and identify which inorganic P phase dominates using a sequential extraction technique along with same for organic soil P.