Liquid and granular rates, timing and outcomes for greens programs.
Application rate, tank mix, nutrient and season-plan calculators, Sigma application guides and fliers, and the GCSAA and university references behind the program calendars.
Rates and conversions are worked out in your browser. Rates for Sigma products come from the Sigma Foundation golf application guide; every calculator also accepts your own numbers.
Liquids in 2.5-gal jugs, granular in 50-lb bags. Granular rate doubles at aerification.
Choose the nutrient to target. For zero-N products such as Sigma 0-2-13 Bio 2X, target K₂O.
Example granular schedule only, not a full fertility recommendation. Replace it with your own program and add other fertilizer inputs as custom analyses to see total N for the year.
1 acre = 43,560 ft². 1 gal = 128 fl oz. Liquid and dry units convert separately.
The calendars draw on GCSAA guidance and university extension calendars. Use them alongside your state BMP manual and soil test.
Liquid and granular rates, timing and outcomes for greens programs.
Rates and timing for tee boxes: divot recovery, wear tolerance, labor.
Per-acre liquid program and Sigma 12-2-6 Bio timing for fairways.
Tee box, fairway and green guides in one document.
Sigma technical documents, plus independent sources we recommend. Sigma is not affiliated with the outside organizations listed.
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