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.