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NE, KS | As others have said it’s very leachable Based on my testing anything applied before March 10 is a waste.
If you are really want to maintain higher levels in the plant I would go 1 lb in a 2x2 setup (depending on soil). Then applications every 3-4 weeks starting at v5.
2-4 weeks is as long as an application will have an effect in plant tissue sample
I strip tilled 2lbs (actual B) of granubor in early March this year and at my first tissue sample (450 GDUs) it was gone | |
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Boron question
