Book Description:
A significant amount of phosphorus (P) is present in animal manure. Land application of animal manure can benefit crop production by providing P and other nutrients. However, P runoff from agricultural soil due to over-application of animal manure may cause surface water degradation. Best management strategies are needed to optimize recycling manure P while minimizing adverse consequences of manure land application. The chemical composition of P in animal manure is one of the critical factors controlling P transport and bioavailability in soils. In the last decade, efforts have been made to increase basic knowledge of manure P chemistry by applying novel and/or modified advanced analytic methodologies. This new book discusses research on characterization of P forms in animal manure.

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Table of Contents:
Introduction pp. i-vii

I. Characterization of Phosphorus in Animal Manure pp.1-18

I.1. Sequential Fractionation of Manure P

I.2. Phosphorus Forms Identified by Solution 31p NMR Analysis

I.3. Characterization of Organic P by Enzymatic Hydrolysis

I.4. Metal Speciation of P Identified by Solid State Spectroscopic Techniques

I.5. Case Study: P Forms in Conventional and Organic Dairy Manure

II. Impacts of Manure Application on Soil P Status pp.19-34

II.1. Case Study: Laboratory Aerobic Incubation to Evaluate the Short-Term Impacts

II.2. Case Study: P Speciation in Heavily Manured Soils

II.3. Case Study: Different Accumulation Patterns of Labile and
Stable P Fractions in Pasture Soil after Long-Term Poultry Litter

Application

Index pp.35-37