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  • From: "gorgon zolla" <lazolla@hotmail.com>
  • To: nafex@lists.ibiblio.org
  • Subject: [NAFEX] Question......
  • Date: Wed, 07 Jan 2004 11:31:23 -0500

If you get your boron and copper at an ag fertilizer dealer, it will have a granule size that is similar to that of the regular NPK fertilizers.

You can also dissolve the fertilizer in water and spray it using a broadcast spray rig. Sodium tetraborate and copper sulfate are both readily soluble in water.

Be careful with the boron. If you are top dressing it (on a lawn for example), rather than incorporating it, you can get phytotoxic concentrations in the top inch or so of soil if you get a light rainfall after application followed by dry weather. By the time the rains come to move it deeper in the soil, your grass might be dead :-(

Steve Dunlop
Nerstrand MN
Zone 4

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