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"Reverse fertilization", the addition of a carbon source like sawdust or sugar, has shown some promise in grasslands. It's probably not going to be practical in anything but the smallest cases, though. A good reference is:</div>
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Blumenthal, D.M., N.R. Jordan and M.P. Ruselle. 2003. Soil carbon addition controls weeds and facilitates prairie restoration. Ecological Applications 13(3): 605-615.<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> MAIPC <maipc-bounces@lists.maipc.org> on behalf of Atha, Daniel <datha@nybg.org><br>
<b>Sent:</b> Tuesday, December 22, 2020 11:14 AM<br>
<b>To:</b> Jensen, Mary K <Kate_Jensen@nps.gov>; maipc@lists.maipc.org <maipc@lists.maipc.org><br>
<b>Subject:</b> [EXTERNAL] Re: [MAIPC] fertilizer applications to reduce invasive vegetation?</font>
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<p class="x_MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Here are two facts to consider.</span></p>
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<p class="x_MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">1. Eutrophic (fertilized) environments promote invasives.</span></p>
<p class="x_MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">2. Oligotrophic (low nutrient) environments are favored by many native plants, especially our rarest species.</span></p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Daniel Atha</span></p>
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<p class="x_MsoNormal"><b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> MAIPC <maipc-bounces@lists.maipc.org>
<b>On Behalf Of </b>Jensen, Mary K<br>
<b>Sent:</b> Tuesday, December 22, 2020 11:07 AM<br>
<b>To:</b> maipc@lists.maipc.org<br>
<b>Subject:</b> [MAIPC] fertilizer applications to reduce invasive vegetation?</span></p>
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<p class="x_MsoNormal"><span style="font-family:"Calibri",sans-serif; color:black">Has anyone ever used or heard of using fertilizer applications to reduce invasive plants?</span></p>
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<p class="x_MsoNormal"><span style="font-family:"Calibri",sans-serif; color:black">thanks!</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif; color:#201F1E">Kate Jensen<br>
Ecologist and IPM Manager<br>
Valley Forge National Historical Park</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif; color:#201F1E">1400 North Outer Line Drive<br>
King of Prussia, PA 19406<br>
phone: 610 783 1035<br>
fax:610-783-5384<br>
<a href="mailto:kate_jensen@nps.gov" target="_blank"><span style="color:#1155CC">kate_jensen@nps.gov</span></a></span></p>
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c</span></b><b><span style="font-size:10.0pt; font-family:"Arial",sans-serif; color:#38761D">onsider the environment before printing this email</span></b><span style="font-family:"Arial",sans-serif; color:#201F1E"></span></p>
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