North American Fruit Explorers mailing list at ibiblio

["gorgon zolla" <lazolla@hotmail.com>]

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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