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Lake Erie P Issues

Algae blooms in Lake Erie have been increasing over the past 15 years or so, especially in 2011 and 2013. Algal growth is often limited by phosphorus (P). Runoff from cropland is one of the sources of P in tributaries draining into Lake Erie. Learn how agri-service providers and producers are minimizing runoff losses by implementing 4R Nutrient Stewardship, by following the links to the presentations and publications below. To see current satellite photos of Lake Erie at the NOAA CoastWatch site, click on "Learn More."

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23 Feb 2017Top Tips to Manage Phosphorus in 2017

AgPro Webinar 23 February 2017

25 Jan 2017Managing Phosphorus Losses in Drainage Water from Croplands

Presented at the 59th annual convention of the Land Improvement Contractors of Ontario, in London, Ontario, Canada, on 25 January 2017.

24 Jan 2017Managing Phosphorus 4R Crops and Environment - Ontario

Presented at the Sylvite Agronomy Meeting 24 January 2017 in London, Ontario, Canada.

04 Jan 2017Sustainable Phosphorus

Presented at the Southwest Agricultural Conference, Ridgetown, Ontario, Canada on the 4th and 5th of January 2017.

14 Dec 2016Managing Phosphorus 4R Crops and Environment - Indiana

Presented at the Indiana Certified Crop Adviser Conference on 14 December 2016 in Indianapolis, Indiana, USA.

21 Nov 20164R Implementation in Ontario: Phosphorus & Sustainability

Ontario Federation of Agriculture 2016 Annual General Meeting “Precision Matters” in Toronto, Ontario, Canada on 21 November 2016

15 Nov 20164R Implementation in Ontario - Phosphorus & Sustainability

Presented at AgroMart Annual Training Meeting – “Precision Counts”- 15 November 2016 in Guelph, Ontario, Canada.

21 Jul 2016Phosphorus (for the Ontario CCA 4R Nutrient Management Specialty)

Presented at the Ontario CCA 4R Nutrient Management Workshop, Thursday, July 21, 2016, Holiday Inn, Guelph, Ontario, Canada

08 Jun 2016Crop Nutrition Industry Action Opportunities for Sustainable Phosphorus Management

Presented at the 59th annual meeting of the International Association for Great Lakes Research in Guelph, Ontario, Canada.

26 Jan 20164R: Better Than You Think

Presented at Sunrise Co-op Winter Growers Meeting in Sandusky, Ohio on 26 January 2016.

25 Nov 20154R Nutrient Stewardship: Addressing Lake Erie Phosphorus targets

Presented at the OMAFRA Environmental Management Branch Conference held in London, Ontario on 26 November 2015.

30 Sep 20154R Nutrient Stewardship: Opportunities for meeting Lake Erie targets

Presented at the Field Crops Team meeting, Agriculture Development Branch, Ontario Ministry of Agriculture, Food and Rural Affairs, held in St. Jacobs, Ontario, Canada.

28 Sep 2015Global Opportunities for Phosphorus Stewardship

Presented at the International Plant Nutrition Institute Board of Directors Meeting, Boston, MA, USA, on29 September 2015.

27 Aug 2015Principles for Implementing 4R Nutrient Stewardship in the Ontario Context

Presented at the 2015 4R Nutrient Workshop in Essex, Ontario on 27 August 2015.

16 Jul 2015Environmental Risk Management in 4R Nutrient Stewardship

...with a focus on phosphorus for Michigan, Indiana, and Illinois. Webinar presentation in the "4Rs Nutrient Management In and Out of Season" webinar series. Part of the training provided for the 4R N ...

14 Jul 20154R Nutrient Stewardship: Opportunities for meeting Lake Erie targets

Presented at Farm & Food Care Ontario Great Lakes Agricultural Strategy Session, Guelph, Ontario, Canada.

05 Jul 2015Managing soil interfaces with 4R crop nutrition

Presented at "Soil interfaces for sustainable development" - the joint meeting of Commission 2.5 of the International Union of Soil Science, the Canadian Society of Soil Science, and the Association q ...

25 Feb 2015Sustainable Crop Nutrition: Improving Global & Local Performance

Presented at the Agronomy Workshop & Expo, Waldo, Ohio, 26 February 2015 .

04 Feb 20154R Nutrient Stewardship Opportunities for Ontario

Presentation at the Ontario Soil & Crop Improvement Association, held in London, Ontario on 4 February 2015.

19 Nov 20144R Nutrient Stewardship and Best Management Practices to Improve Water Quality

Presented at 21st Annual Latornell Conservation Symposium “Growth & Transformation” in Alliston, Ontario. 19 November 2014.

29 Jul 2014Precision Phosphorus Application for the Lake Erie Watershed

For presentation at the InfoAg Conference, St. Louis, MO, 30-31 July 2014

12 Dec 2013The 4Rs for the Lake Erie Watershed

Presented at the conference 'Ag Retailers Leading Improvements in Resource Management for Water Quality' in Toledo, OH on 12 December 2013.

04 Dec 2013Phosphorus Balance Trends on Agricultural Soils of the Lake Erie Drainage Basin

Laura Lindsey (Bast), Robert Mullen, Ivan O’Halloran, Darryl Warncke, and Tom Bruulsema

02 Dec 2013The Right Place to Put Phosphorus in the Lake Erie Drainage Basin

2011 Summer -- Plant Nutrition Today -- THE RIGHT PLACE TO PUT PHOSPHORUS Cropland in the Lake Erie drainage basin is under scrutiny again as a potential source of the phosphorus (P) that is thought t ...

28 Nov 2013Reducing Loss of Fertilizer Phosphorus to Lake Erie with the 4Rs

by Tom Bruulsema, Robert Mullen, Ivan O'Halloran, and Harold Watters.

11 Nov 2013Mycorrhizae

A collection of articles on plant root associations with beneficial fungi and their role in improving phosphorus uptake.

22 Jul 2013Managing losses of dissolved phosphorus by time and place of application

Presented at the Joint meeting of the Canadian Society of Soil Science, Manitoba Soil Science Society, and Canadian Society of Agricultural and Forest Meteorology, in Winnipeg, Manitoba on 23 July 201 ...

03 Jun 2013Place phosphorus in the soil to protect water quality in Lake Erie.

The link on the left leads to module 6.3-2 of the 4R Plant Nutrition Manual, and explains why "right place" is important for nourishing crops while protecting Lake Erie's water quality.

03 Jun 2013Timing broadcast phosphorus fertilizer applications can help protect Lake Erie

The link on the left leads to module 5.3-2 of the 4R Plant Nutrition Manual, and explains why "right time" is important for broadcast applications of P.

22 Jan 2013The 4Rs and Great Lakes Water Quality

Presented at the Sylvite Agronomy Meeting 2013 in London, Ontario. 22 January 2013.

15 Jan 2013Water Quality, the 4-R Program, and Why You Need to Embrace These Principles

Presented at the Michigan Agri Business Association Winter Conference, Lansing, MI on 15 January 2013.