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Cotton Squaring

Here is a young cotton square on some cotton that is about 35 days old.

Here is a young cotton square on some cotton that is about 35 days old.

Some older cotton that has been squaring.

Some older cotton that has been squaring.

There is a good bit of cotton now that has started putting on squares.  It won’t be long before we see some blooms.  There are a few reminders about fertility I wanted to mention.

-Sidedress Nitrogen between first square and first bloom.  However, don’t forget about Boron and Sulfur.

-Boron (B) is an essential micronutrient that is important to flowering, pollination, and fruiting of the cotton plant. The standard UGA recommendation of 0.5 lb B/A, applied in two 0.25 lb/A foliar applications between first square and first bloom, fulfills the base requirement for Boron.

-Sulfur.  The official UGA fertilizer recommendation for sulfur is 10 lb/A. Sulfur can be applied either with preplant fertilizer or with sidedress N materials such as 28-0-0-5 or ammonium sulfate. Sulfur fertilization is most important on sandy, low organic matter Coastal Plain soils.