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Managing Phosphorus in Organic Residuals Applied to Soils, Composts, Biosolids, Manures, and Others
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Managing Phosphorus in Organic Residuals Applied to Soils, Composts, Biosolids, Manures, and Others


When: Wednesday November 2, 2016
8:30 am to 4:00 pm
Where: Holiday Inn Hotel & Suites Marlborough
265 Lakeside Avenue
Marlborough, Massachusetts  01752
United States
Kelly Kraemer

Phone: 413-545-5221


Presented by University of Massachusetts Amherst Extension

Turf managers who use composts, biosolids and other organic materials may be challenged to continue to use these materials without exceeding acceptable levels of soil phosphorus (P), particularly given recent Massachusetts regulations that limit P applications.

Join turf professionals, organic residuals suppliers, agricultural producers and industry experts, educators, and scientists from UMass, UConn, UMaine, Cornell, Penn State and beyond at a symposium that will address how to develop a balanced system for the use of organics, with all their benefits, without adding to the potential for negative environmental impacts caused by P leaching and runoff.

This symposium will provide not only sound technical information on the topic, but also a unique opportunity for dialogue amongst all present on the presence, forms, dynamics, transport, and fate of organic sources of P applied to soils. In addition, it is intended to help in developing clear guidelines for the use of P-containing organic residuals.

Topics include:

  • Policy, management, and regulation of phosphorus in New England
  • Analysis and interpretation of phosphorus in soils and organic residuals
  • Mitigation strategies for high phosphorus soils

Key discussion questions for turf include: How does the use of composts and other organic materials impact turf, soil, soil P and the movement of P from the turf system? What analyses, interpretation and guidelines are needed? What are the most environmentally responsible and practical BMPs for using these materials? Is research needed to address questions for which the answers are not clear?

Approval has been granted for the following professional certifications: Certified Golf Course Superintendent (CGCS), Certified Sports Field Manager (CSFM), Accredited Organic Land Care Professional (AOLCP), Massachusetts Certified Horticulturist (MCH), and Massachusetts Certified Landscape Professional (MCLP).

Registration and program details can be found on the UMass Extension website. Register by October 15 for the early bird rate of $85.00; the fee will be $100.00 after that date.

Email Kelly Kraemer or call 413-545-5221 for sponsorship, exhibitor or other information.

UMass Extension is grateful for the generous support of industry sponsors who have made this program possible: AgResource Inc., PJC Organic, Osborne Organics, Casella Organics, Cabot Creamery and the North East Biosolids and Residuals Association.


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